In version 6.7.8 (18.12.18)

!!! If you are using version 6.73 or older, you are required to synchronize your license before downloading this version!!!

Novelties:
  1. Advanced economic evaluation tool :
    – Detailed investment and running costs definition
    – Feed-in tariff strategy definition
    – Takes the long-term degradation (ageing tool) into account
    – Financial balance calculation: payback period, return on investment, dividends, taxes
    – Results and graphs on the report.
Improvements:
  1. Interactive map: GoogleMaps web service is no more available.
    Optimized access to OpenStreetMap and Geonames web services.
    Fixed several related issues, namely possibility of defining GPS coordinates
  2. Grid power limitation: reintroduced the limit at the Inverter level
  3. Implemented Grid limitation when Self-consumption
  4. Auxiliaries: separate Day and Night aux. losses.
Fixed errors:
  1. Loss diagram: with Mixed orientation:
    fixed error in Array Nominal Energy (at STC), and subsequent losses.
    No impact on the result
  2. Auxiliaries: were not accounted during night, when Grid is disconnected
  3. Shadings : Fixed report generation error due to erroneous objects imported from external files.

In version 6.7.7 (15.11.18)

!!! If you are using version 6.73 or older, you are required to synchronize your license before downloading this version!!!

Improvements:
  1. Hidden parameters: reorganized the topics, more easy
  2. Stand-alone systems, battery, controllers: translation (only in French just now)
  3. Batch mode: added ground albedo as parameter for bifacial systems
  4. Interactive map: added new map using OpenStreetMap services and OpenLayers protocol
  5. Shadings : added possibility to apply strings attribution to multiple selected fields
Fixed errors:
  1. Grid-storage with undersized Charger: unrealistic overload loss
  2. Stand-alone controllers: sometimes thresholds def. not well initialized
  3. Pumping: creating new Variant crashed.
  4. Batteries and Pumps databases: some bad definitions.
  5. Several dialog problems due to deep modernization of dialogs in V 6.76:
    Module layout: Problem for getting I/V curves model
    PV modules definition: Rserie, Rshunt not modifiable
    Bifacial option not modifiable
    Detailed losses: AC losses: definition as % did not work
    AMPT optimizers: Number of modules in series not modifiable.
  6. Fix for components not appearing in import and export tool.
  7. Fix for crash in the Bifacial tool with 2d unlimited sheds.
  8. Fix for crash when importing a variant to a new project.
  9. Fix for crash when starting a new project without admin rights and UAC disabled.

In version 6.7.6 (18.10.18)

!!! If you are using version 6.73 or older, you are required to synchronize your license before downloading this version!!!

Novelties:
  1. Battery storage in grid systems:
    3 strategies: self-consumption, peak shaving, weak grid islanding
  2. Simulation: Implementation of FirstSolar spectral correction model, which can be used with all PV technologies
  3. Filter for Bi-facial and 1’500V PV modules
  4. PVGIS import: the old site will be closed soon, implemented new import of hourly TMY or monthly data, directly from their API
  5. NREL NSRDB: TMY hourly or Monthly data, direct import from their API
  6. Meteo import in SAM CSV format:
    for NREL NSRDB hourly / sub-hourly / multi year / TMY files
    for Explorador Solar TMY (Chile).
  7. Creation of a site: direct import of hourly data from several API sites
  8. Horizon import: direct from PVGIS, or flexible .CSV format
Improvements:
  1. Ageing tool reworked, now with a table of Yields, PR and PR loss values
  2. Report presentation: restructured, marked different parameter sections, gather important infos about the system on the fist page
  3. Report customization: possibility of choosing columns on the main table other possible customizations (system type, etc.)
  4. Grid limitation strategy, accounted now as a specific “Unused Energy” loss
  5. Stand-alone systems: secured the definition of SOC thresholds
  6. Geographic site coordinates: defined now as seconds (30m resolution), or with 4 decimals (11m resolution) for horizon definition purpose.
  7. Meteo sources no longer available: removed from the Meteo import tool.
  8. Workspace contains now a \template\ directory for all template files (new ones)
  9. Button to open the Windows explorer in \PVsyst660_Data\
  10. License: enhanced reading of HostID information on Virtual Machine
  11. Project: enhanced sorting when loading project
Fixed errors:
  1. Several issues in the Pumping system definition, when creating it from scratch
  2. Warning: the basic mechanism for all dialogs has been deeply modernized,
    this may lead to unexpected errors in some dialogs
  3. Errors in the Module Layout calculation (for severe shading situations only):
    – with Maxim PV modules when the Vlimit is very low
    – with SolarEdge optimizers when using Half-cell modules.
  4. Import: fixed importation of project as component (.vdx variants were missing)

In version 6.7.5 (06.08.18)

!!! If you are using version 6.73 or older, you are required to synchronize your license before downloading this version!!!

Improvements:
  1. String inverters: add. info, and warning when choosing “Use Multi-MPPT”
  2. Help about bi-facial: add a page explaining the results in detail
Fixed errors:
  1. Projects involving Mixed orientation: errors in simulation
    (namely on IAM and near shading losses)
  2. CSV hourly files: error in the version 6.74: many values were null !
  3. Ageing tool: always reverts to 10 years when entering the dialog.
  4. Solar parameters tool (plots): some insignificant errors.
  5. Maxim optimizers: little error in simulation => Ohmic loss = 0.

In version 6.7.4 (13.07.18)

!!! A license synchronization is required before the update of PVsyst !!!

Novelties:
  1. Update to Meteonorm V 7.2
    New database of 2’500 stations
    New features: Linke coefficient, Humidity (for spectral corr.)
    Mention of the RMS of the years distribution  (for P50/P90).
  2. Weather-corrected Performance Ratio  (temperature corr. only).
Improvements:
  1. Optimized simulation speed for cases with many inverters or MPPT inputs
  2. Customization of some features of the report
    (show PR weather-corrected, some selectable columns in monthly table)
  3. Bi-facial: improved Help, set a detailed procedure
  4. License: enhanced reading of HostID information
Fixed errors:
  1. SolarGIS monthly files were no more readable (modif. SolarGIS)
  2. Bifacial Mismatch loss: was slightly over evaluated (by the % of Bifacial)
  3. Fixed error of V 6.73 concerning Grid MV Voltage in AC losses.
  4. Batch parameters reading on file was not operational.
  5. SolarEdge new optimizers P850: fixed sizing problems.
  6. Maxim optimizers: Voltage limit not well taken into account (no effect on simulation results).

In version 6.7.3 (29.05.18)

PVsyst now uses hardware acceleration and requires display drivers which support OpenGL 2.0.
Please make sure they are up-to-date.

Novelties:
  1. New language available: Portuguese.
  2. Import of Meteo data measured on a tracker
  3. Economics: new database for defining component’s prices
Improvements:
  1. Revised the dialog for the Meteo import (ASCII) format, improved visualization of the source file contents
Fixed errors:
  1. Helios3d import: in V 6.72, the tables positions were shifted by 1/2 table
  2. Report: Scale error in the Normalized variables plot
  3. Possible little simulation error when  Inverter losses over current limit.

In version 6.7.2 (04.05.18)

PVsyst now uses hardware acceleration and requires display drivers which support OpenGL 2.0. Please make sure they are up-to-date.

Novelties:
  1. Shadings : masks can be defined for zones of tables, preventing them to place tables in these areas.
Fixed errors:
  1. Tracking diffuse computations : fixed an error in calculations when using multi-threading

In version 6.7.1 (01.05.18)

PVsyst now uses hardware acceleration and requires display drivers which support OpenGL 2.0. Please make sure they are up-to-date.

Novelties:
  1. Tool for Ageing studies, multi-year batch simulation:
    – For different operating years, same meteo data
    – For a set of yearly meteo data files
    – Results and graphs on the report
  2. Shading calculations: multi-threading
Improvements:
  1. Possibility of backtracking with horizontal trackers, shifted trackers
  2. Meteo ASCII files import: completely revised, more reliable for any file,
    exports the list of the data problems in the file.
  3. Batch mode and sheds optimization tool:
    – Modification of the pitch as parameter
    – Bi-facial: height above ground as parameter.
Fixed errors:
  1. Horizontal tracking: fixes for the non-zero azimuth definition
  2. Stand-alone systems: error in the Threshold’s analysis tool
    => specified erroneous voltage thresholds on the report
  3. Transposition factor optimization plot: crash
  4. Error when reading new CdTe (First Solar) PV modules

In version 6.7.0 (29.03.18)

PVsyst now uses hardware acceleration and requires display drivers which support OpenGL 2.0. Please make sure they are up-to-date.

Novelties:
  1. Bifacial model for tracking 1-axis systems (unlimited trackers).
  2. Report outputs: now managed with in integrated PDF tool
    You can visualize, scroll, save and print like any PDF document
  3. Loss diagram: export of the values (with more details) to EXCEL.
Improvements:
  1. Report: refined the add. information about the sheds and trackers systems
    (sheds size and pitch, GCR, limit angles, etc).
  2. Wiring resistance management: improvement of the choice stability (% Pstc)
    when changing the nominal power.
  3. Wiring resistance help: revision, new page for detailed calculations.
  4. SolarEdge: implemented mix with “normal” inverters in other sub-arrays
    (was not possible un to now, and freezed).
  5. SolarEdge pre-sizing process: correction and improvement.
  6. Workspace: updated and improved selection of directories in workspace dialogs.
  7. Tables of monthly values: improved some units displays, now up to 10 columns.
Fixed errors:
  1. Inverter night losses: now null if the option “night disconnect”
    (after external transformer) is activated
  2. Battery system definition: crash when choosing the battery first
  3. Grid Power limitation: didn’t work properly with very big systems,
    the limitation was at the inverter level => did not recover losses
    from inverter to grid when overload (little yield underevaluation).
  4. Bug fixes specific to version 6.6.9 : Erroneous voltage in the lists of batteries.

In version 6.6.8 (02.02.18)

PVsyst now uses hardware acceleration and requires display drivers which support OpenGL 2.0. Please make sure they are up-to-date.

Novelties:
  1. Implementation of Lithium-ion batteries :
    Model, Dialog, Database, Simulation, Help
Improvements:
  1. Report: mention of the Pitch, collector width, GCR when pertinent.
  2. P50-P90: possible to get chosen Pxx values on the report
    Reviewed the initial default values  (erroneous since some versions)
  3. SolarEdge:   New devices, especially for Japan
    Optimizer Efficiency:  updates and improvements
    Big systems: corrected the very long delays in the dialog
    String length (PMax) was sometimes limited incorrectly with respect to rules
    Simulations with old SolarEdge configurations: report and results not available
    PV modules strings in parallel on the optimizer input: didn’t work properly.
  4. LID losses also defined with Stand-alone and pumping systems.
  5. Pumping systems dialogs: improved the update of controllers when changing pump.
  6. Workspace: updated and improved selection of directories in workspace dialogs.
  7. License: simplified license management of some rare PC configurations
    that were involving manual operations.
Fixed errors:
  1. IAM customized profile definition with  *.PAN files was not read (repaired)
  2. Import of Meteo data files: some didn’t work anymore,
    some providers have changed their format
  3. Several little bugs with Pumping and Stand-alone systems dialogs
  4. Night losses not accounted correctly with multiple inverters
  5. Fixed language of some dialogs that were in French since last Delphi update.

In version 6.6.7 (16.11.17)

PVsyst now uses hardware acceleration and requires display drivers which support OpenGL 2.0. Please make sure they are up-to-date.

Novelties:
  1. New “orientation” option: unlimited trackers, horizontal axis
    No need for constructing a 3D scene
  2. New variable in the PV module:  “Glass Front Surface” definition.
  3. New default for IAM profile  (applicable to new modules in the DB):
    Normal glass, plastic:   Fresnel’s laws profile
    AR glass or Textured :   Fresnel’s laws with AR coating.
Fixed errors:
  1. IAM customized profile definition with  *.PAN files was not read (repaired)
  2. Import of Meteo data files: some didn’t work anymore,
    some providers have changed their format
  3. Several little bugs with Pumping and Stand-alone systems dialogs
  4. Night losses not accounted correctly with multiple inverters
  5. Fixed language of some dialogs that were in French since last Delphi update.

In version 6.6.6 (27.10.17)

PVsyst now uses hardware acceleration and requires display drivers which support OpenGL 2.0. Please make sure they are up-to-date.

Novelties:
  1. Near Shadings: fixed copy & paste of objects

In version 6.6.5 (26.10.17)

PVsyst now uses hardware acceleration and requires display drivers which support OpenGL 2.0. Please make sure they are up-to-date.

Novelties:
  1. Shadings: Tool for the detailed study of thin objects shading according to the object’s distance
  2. Shadings: added an advanced selection dialog.
  3. Pumping systems: completely new system dialog many improvements of the pumping systems management.
Improvements:
  1. Bi-facial systems model:
    – add 2 new contributions: beam component on the rear side
    – corrected contribution of the ViewFactor in the Loss diagram.
  2. Controller for Pumping systems: completely reviewed the definition dialog
    (especially concerning SOC thresholds).
  3. Pumps and Pumping controllers database: several new components.
  4. Deeply revised Help of Shadings calculations models, Thin objects,
    Pumping systems, Bi-facial, etc.
  5. PV module dialog, Low-light performance specification:
    improved record and management of specified values.
  6. Shadings 3D: added “by modules” parameter to the grouped modifications.
  7. Report: direct creation of PDF reports without usinf PDFCreator.
  8. Workspace: switching workspace opens the current workspace location,
    not the user’s documents folder.
Fixed errors:
  1. Shading 3D: in some cases, different plane orientations are not recognized
  2. Shading 3D Helios3D and complex scene: sometimes higher shading losses due to
    erroneous identification “Behing the plane”
  3. Trackers “tilted or horizontal axis”: errors when axis azimuth is not null
    (only significant with very high azimuths like 180°)
  4. Variables specified for CSV hourly files or Monthly tables
    were not well recorded on files  (=> necessitate redefinition at each run)
  5. SolarEdge and other optimizers used with Ageing: simulation crash when the
    Mismatch Rms values for ISC and Voc are null.
  6. SolarEdge optimizers: error when 2 modules strings at the optimizer input
    ( => very high shading or IAM loss)
  7. SolarEdge with Ageing: error in ModuleLayout,
    only significant when very big electrical shading contribution.
  8. Maxim optimizers: don’t appear in lists (in the version 6.64 only)
  9. Some very special cases, EOutInverter may slightly overcome PNom (0.03% error)
  10. Analyse of Measured data: error preventing any simulation (V 6.64 only)
  11. Unavailability loss: periods sometimes specified for another year than
    the meteo data  (=> no loss) !

In version 6.6.4 (05.09.17)

PVsyst now uses hardware acceleration and requires display drivers which support OpenGL 2.0. Please make sure they are up-to-date.

Novelties:
  1. Mismatch between strings: Tool for a deep study of the phenomenon
    Quantified mismatch loss for centralized and string inverter configurations
    Tool for the evaluation for string length differences and mismatch effects
  2. Orientation definition in complex systems: new tool
    Helios3D and terrain installations: possibility of defining several average orientations.
    Grouped Orientation for distributed systems like round buildings.
  3. SolarEdge architecture: complete revision
    Definition of “physical” inverters with different strings as inputs
    Complete treatment of Optimizers efficiency and electrical losses (ModuleLayout).
  4. Meteo data import: direct access to 2 new data sources:
    Reuniwatt (worldwide) and Explorador (Chile)
Improvements:
    1. Bifacial 2D model: improved model for operating limit conditions (large heights),
      Improved the parameter import from the “real” system defined in 3D
      Conceptual error in the model, which lead to an underestimation of the rear side irradiance by a factor of 1/GCR (i.e. a factor of 2 or more!)
      Add the contribution of the Diffuse seen from the rear side.
      Albedo in monthly values.Seasonal orientation: possibility of negative summer tilt for low Latitudes.
    2. Inverter input: explicit management of the Maximum current per MPPT
      New loss “Over Max. current” replaces some losses which were previously registered as  “inverter loss below voltage threshold”.
    3. PNom sharing: new management (groups of sub-arrays), checks, warnings, etc.
      Update of the help, especially concerning the option “Use Multi-MPPT”
    4. Deep review of the Pumps and Pumping controllers databases management
      Added numerous high power pumps and power controllers.
    5. Reviewed files for DEMO Stand-alone and Pumping systems.
    6. Improved speed for opening projects with a big number of fields in the shadings.
    7. Improved performance of triangulation algorithm when importing big CSV ground data
    8. Licensing system: improved robustness and added specific support of rare PC configurations that were not supported.
Fixed errors:
  1. Reading User’s needs (load) files of hourly data:
    Securized reading of Units at top of the column (Message when not recognized)
    Suppressed reading of 29th February
  2. Some sizing problems when using AMPT string optimizers
  3. Azimuth calculation acc. to table baseslope: error in some special cases
    (i.e. only when creating the Table object with Azimuth <> 0)
  4. Tracking with Frames NS: Tilt angles < 0 (sun beyond E/W) were not working
  5. Global scene rotation issue giving angles beyond boundaries
  6. Crashes with tracking systems and partial shadings
  7. Ground image not always saved properly
  8. Zones of tables sometimes not filled correctly
  9. Batch simulation sometimes produces bad output files
  10. Error when reading components with a dot in the Filename
  11. Error when using list of geographical sites
  12. Report: Sometimes settings of printer head lines (in Preferences) didn’t work
  13. Report: Horizontal overlap when the Windows Font Size is increased
  14. Report: Error when scrolling zoomed with more than nine pages
  15. Display of last usable version of PVsyst was incorrect in some cases

In version 6.6.3 (23.06.17)

PVsyst now uses hardware acceleration and requires display drivers which support OpenGL 2.0. Please make sure they are up-to-date.

Improvements:
  1. Definition of a system kind in the project’s dialog.
  2. Seasonal orientation: possibility of negative summer tilt for low Latitudes.
  3. Inverter definition, efficiency curve, dialog and plots improvement.
  4. Direct import of new Meteo data sources (Ashrae IWEC, etc).
  5. Database update.
Fixed errors:
  1. Electrical shadings: not computed in Stand-alone systems,
  2. Electrical shadings: not well accumulated in Mixed orientation systems,
  3. Stand alone systems: the Genset was not read on the file,
  4. muPmpp could be defined as positive value, without error message,
  5. Backtracking error message when trackers with different pitches,
  6. Tracking axis azimuth not well reported in the report.

In version 6.6.2 (01.05.17)

PVsyst now uses hardware acceleration and requires display drivers which support OpenGL 2.0. Please make sure they are up-to-date.

Improvements:
  1. Feature for placing any object above the ground object.
  2. Bifacial systems management: parameter definition from the system not well taken into account.
  3. Tracking systems without 3D shadings definition: was possible, now a warning.
  4. Warning/Error message when the wiring resistance is not correct.
Fixed errors:
  1. Warning/Error message when the wiring resistance is not correct,
  2. Tracking systems: still shading diffuse calculation errors in some cases,
  3. Helios3D import: the not-PV objects were not imported correctly,
  4. Module layout with trackers:  filling of the trackers by modules,
  5. Domes: partition in module strings not shown on the second face (display only),
  6. Pumping systems: specified tank volume modified by the pre-sizing tool,
  7. Maxim optimizer: some Maxim modules without diode number definition in the database => erroneous values,
  8. Report copy in Clipboard: parameter’s page sometimes blank,
  9. Module layout: some error and warning messages not always pertinent,
  10. Use of the model library file for variables to be registred (SFI).

In version 6.6.1 (24.03.17)

Improvements:
  1. When importing shading scenes from DAE or 3DS files,
    it is now possible to select one or more materials
    in order to transform objects to PV fields directly.
Fixed errors:
  1. Read of Load hourly profiles from a file,
  2. Shading calculations with some tracking systems: Linear shading null,
  3. Shading calculations with some tracking systems: Message preventing simulation,
  4. Loss parameters (Thermal, Soiling) or others (Inactive bands) not correctly registred on the file,
  5. Pumping systems, definition of Water use crashes with new Variants,
  6. Inverters: DC-DC input didn’t work anymore,
  7. IAM profiles: little differences (0.14%) between different runs,
  8. SolarEdge converters with Fractional inputs: simulation big error,
  9. AMPT strings optimizers: erroneour Message prevents the simulation,
  10. Shadings :
    – Object selection using the mouse has been fixed
    – Improved memory consumption for big scenes
    – Fixed 3DS not loading when textures missed.

In version 6.6.1 (24.03.17)

Novelties:
  1. The 3D drawing system has been completely revisited:
    – using now the popular 3D platform  OpenGL
    – with a completely new drawing window and renewed tools organization
    more compatible with and similar to usual 3D tools
    – fluid navigation, high quality visual effects,
    – improved management of zones, selection options,
    – population of numerous tables in multiform zones,
    – Updated Help for all these new features
    – Some tutorial videos for these new features
  2. Import of  *.dae  3D drawings   (Sketchup, AutoCAD, others)
  3. Project’s general dialog: completely revised, more ergonomic. Improved management of Variants
  4. Bi-facial systems: complete model for shed-like PV systems pedagogical tools for a deep understanding of the issues. Other configurations (vertical, tracking, acc. to 3D scene) in preparation.
  5. Multi-orientation systems (especially for dome configurations):
    possibility of sharing the maximum inverter power along the day either to 2 different MPPT inputs, or to each inverters in mixed orientation.
  6. IAM: easy use of predefined profiles  (Fresnel normal or with AR, Sandia) Renewed the dialog in the  “Detailed losses”.
  7. Measured data comparisons: import of the parameters of a simulation variant.
Improvements:
  1. Import of Meteo files from new providers (NSRDB, SolarAnywhere, 3-Tiers, etc),
    Updated the help.
  2. Import of multi-year meteo data files from several providers.
  3. Long-term degradation batches: the ‘year of simulation’ can be used as batch parameter.
Fixed errors:
  1. This version has been submitted to many Beta-testers. We tried of course to eliminate all reported bugs.
  2. Several (rare) bugs reported by users fixed.

In version 6.53 (03.02.2017)

Novelties:
  1. Import a variant (simulation parameters) into a data comparison variant
  2. Pumps database: added high power pumps (up to 180 kW) and new Grundfos
Improvements:
  1. Import of PVsyst_Std meteo files on POA: possibility of using Perez model,
  2. Improvement of some warning/error messages
Fixed errors:
  1. Trina PV modules with Maxim optimizer: error in the database,
    => the results are completely erroneous.
  2. Several (rare) bugs reported by users fixed.

In version 6.52 (12.12.2016)

Miscellaneous:
  1. Database update

In version 6.51 (28.11.2016)

Novelties:
  1. “Maxim Integrated” optimizers at the sub-module level
Improvements:
  1. Pumping systems, many improvements,
  2. Possibility of defining pumps on an EXCEL document,
    => easier for enriching the database with numerous models.
  3. New faster algorithm for Module Layout calculations.
Fixed errors:
  1. Pumping systems, Controller for pumping: several crashes solved.
  2. Inverters: crashes for some models with unbalanced MPPT inputs and one only efficiency profile. (V 6.49 only)
  3. Several errors in some specific cases when importing Meteo data from SolarAnywhere, Solar Prospector, PVgis when using Chrome.
  4. Use of Perez model: sometimes mentions Hay on the report.

In version 6.49 (30.09.2016)

PVsyst now uses hardware acceleration and requires display drivers which support OpenGL 2.0. Please make sure they are up-to-date.

Fixed errors:
  1. ModuleLayout: Error when choosing “Portrait”: shown module sizes incorrect
  2. ModuleLayout: Modules not displayed correctly in southern hemisphere
  3. Batch mode: crash with ModuleLayout
  4. Errors in 3D objects manipulation (double-click on Gizmo)
  5. Read PV modules: IAM customized profile not read in the database
  6. Stand-alone systems: Controller voltage thresholds incorrect when several batteries in parallel
  7. In some special cases (modif. parameters after simulation): on the report, simulation may be not coherent with the input parameters
  8. SolarGIS files reading: crash when the Timezone is not an integer (India)
  9. P50-P90 dialog: value out of limits at dialog opening

In version 6.48 (13.09.2016)

Novelties:
  1. Faster loading of Projects and Variants
  2. More output for optimization tool
  3. TIGO optimizers: new device, new behavior for “Smart modules”
  4. Power factor definition: improved the dialog
Fixed errors:
  1. Module Layout dialog corrections
  2. Shadings and project: sometimes unappropriate warnings
  3. Inverter overload loss: error in calculation for sub-arrays with mixed orientation
  4. SolarGIS (v2.1.5): format change when reading multi-annual hourly files
  5. Importimg meteo ASCII files gave error in some cases

In version 6.47 (15.07.2016)

Improvements:
  1. Copy/paste of multi-selected objects: after Paste, the multi-selection persists
  2. Tranfo loss parameters: increased number of decimals on file
Fixed errors:
  1. Multi-orientation: simulation changes the orientations (only in V 6.46).
  2. Shadings acc. to module strings and multi-orientation: sometimes errors in the shading calculations.
  3. Maxim and Solibro modules: crash  (Maxim modules are still in development).
  4. Wind turbine: retrieved default parameters when edited.
  5. Import ASCII meteo data from POA: sometimes involves the Perez model. Now the Perez model is authorized !

In version  6.46 (27.06.2016)

This version doesn’t provide much novelties.
We are in a phase of stabilization and internal modernization of the software, after the deep changes in the version 6.40 and followings.
Every PVsyst user is encouraged to communicate any problems encountered when using the program.
Important novelties are in preparation, but not yet published.

Improvements:
  1. Backtracking parameters info in the “Orientation” part
  2. Database update
Fixed errors:
  1. Blocking error when developing a tracking system in the version 6.45.
  2. Backtracking: error in diffuse shading factor calculation (only in V 6.45).

In version 6.44 (31.05.2016)

This version doesn’t provide much novelties.
We are in a phase of stabilization and internal modernization of the software, after the deep changes in the version 6.40 and followings.
Every PVsyst user is encouraged to communicate any problems encountered when using the program.
Important novelties are in preparation, but not yet published.

Novelties:
    1. Import of Meteo ASCII files: now possible with files in UT (universal time)
Improvements:
    1. Meteo quality check, better understanding and management of Time shifts
    2. Inverter dialog: display option of the efficiency curve
    3. Deep revision of the user’s Warnings and Error management  (internal update)
    4. Load profile in hourly values: improvement of the file management/tolerance
    5. Module layout with sheds: bottom cell considered shaded when at least half the cell is shaded (=> diminishes shading loss)
Fixed errors:
  1. Crash when openening the “Degradation” tool.
  2. Seasonal tilt: correct update of the Summer tilt after simulation.
  3. Seasonal tilt: simulation error in winter in some particular situations.
  4. Import of Meteo ASCII files: Beginnig year, DST management, stabilizations.
  5. Inverter overload: VmppMin (current limit) not taken into account if overpower conditions.
  6. Shading loss: sometimes false simulation when using old files as inputs, but correct as soon as we change something (e.g. recompute table).
  7. Partial shading calculations: error in the Shading factor calculation.
  8. Partial shading calculations: error was not reported when the partial system is not defined => crash in the simulation.
  9. ModuleLayout: now error message when used with Partial shading calculations.
  10. Electrical wiring resistance calculation: nb. of inverters when multi-MPPT.
  11. Stand-alone controllers: revision of modifiable and system-fixed parameters.
  12. Pumping systems: updates and improvements in the hydraulic system dialog.

In version 6.43 (18.03.2016)

This version doesn’t provide much novelties.
We are in a phase of stabilization and internal modernization of the software, after the deep changes in the version 6.40 and followings.
Every PVsyst user is encouraged to communicate any problems encountered when using the program.
Important novelties are in preparation, but not yet published.

Novelties:
    1. Pumping systems: definition of a customized pipe
Improvements:
  1. Check meteo data: Improved time shift info and management
  2. Shading verifications: suppressed redundant calculations (improves delays in the dialog with big scenes)
  3. SolarGIS files: still some old files not well read (time zone error).
Fixed errors:
  1. Creating PAN files in old format: error when IAM profile is defined
  2. Slight difference in IAM profile interpretation when reading internal DB or PAN file. May lead to slightly different IAM losses.
  3. Little modelling error with PV module use under very low temperatures (<0°C)
  4. Crashes when using the “Degradation” tool.
  5. Site dialog: manual definition of Monthly values didn’t work well.
  6. Very old (and rare) crash when suppressing a sub-array.
  7. Several crashes fixed in the 3D Shading scene management and Print previews.

In version 6.42 (19.02.2016)

This version doesn’t provide much novelties.
We are in a phase of stabilization and internal modernization of the software, after the deep changes in the version 6.40 and followings.
Every PVsyst user is encouraged to communicate any problems encountered when using the program.
Important novelties are in preparation, but not yet published.

Novelties:
  1. Tool for module degradation, including dispersion => increasing mismatch. Simulation for any specified year after commissioning
Improvements:
  1. Read of Load profile files: improved format acceptability
  2. Import Standard meteo files: improved Timeshift and Timezone management
  3. License management: improved useability in some problematic cases
Fixed errors:
  1. Stand-alone systems: error when using some “commercial” Controllers with Voltage control instead of SOC control
  2. Error on Diffuse calculation with horizon + near shadings
  3. Error on electrical shading loss calculation with thin objects
  4. Multi-rectangular fields and other marginal cases: File read errors

In version 6.41 (01.02.2016)

*** Due to a long delay after the update 6.39, we have extended the update support up to the 6th of February 2016 for users whose supports should stop after the 31st of July 2015. To benefit from this extension, you have to synchronize your license. ****

Improvements:
  1. The transposition model choice (Hay/Perez) is now in the project’s definitions
  2. SolarAnywhere data: the temperature is now read when available
Fixed errors:
  1. Some problems with new License management
  2. Sometimes error in the calculation of the IAM loss
  3. Errors when reading some particular calculation versions (with too much variables specified for the ASCII file)
  4. Reading error when defining zones in the 3D shadings.

In version 6.40 (18.01.2016)

*** This should be considered as a major version ****

Novelties:
  1. Battery system management has been deeply reviewed and partially rewritten.
    The system dialog is now much more comprehensive
    Battery charging Control may be specified in terms of SOC (not battery voltage)
    Visual tool for the relationship between SOC and Voltage thresholds as function of the battery temperature, charging/discharging currents, etc.
    The Presizing tool has been improved (works on several years)
    New tool for an overview of the sizing issues (parametric diagrams)
    Battery simulation treats all kinds of losses as defined for the Grid systems.
    User’s needs management deeply modernized.(namely domestic uses with time of use for each appliance)
  2. 3D Shading tool management:
    New algorithm for the shading factor calculation.
    => Calculation time drastically reduced (by factor of 20)
    Import a ground image (google, architect plan, etc) as “background template” for the development of the scene.
    Drawing of objects with the mouse, directly in the scene (useful namely with ground image)
    Smart tool for the displacement of objects
    New objects: domes (opposite sheds), Wind turbines, etc
    The shading effect may be desabled for chosen objects.
    Inversely, the ground objects may be specified as throwing shades
    The Shading factor calculation for a partial sub-system has been improved.
  3. System (sheds) optimization tool:
    Reworked the dialog, with a viewer integrated into a single window,
    Generic parameter selection
    Sketches to visualize selection range and the calculation progression
    Scans of Tilt and Azimuth are now possible for all types of orientations (except tracking).
    The Help has been developed.
  4. All the data files written as Text files.
    This implies a new Workspace kind named  \PVsyst640_Data\.
    Older versions of PVsyst cannot access this new workspace.
Improvements:
  1. Meteo data import: the dialog has been reviewed, new faciliting features
    Improvement of the Help, enrichment concerning all data sources.
    Direct Import for new Meteo data providers:
    – NREL for the Indian territory (satellite data in 10×10 km),
    – Vortex (private  company, for pay).
  2. The dialog for the management of projects has been modernized
    The project may/should be explicitely saved after each modification
    Number of Calculation variants now illimited  (VCi, VDi, etc).
  3. License validation: modified for keeping the license when updating to Win10.
  4. PVsyst can be started from a script.
Fixed errors:
  1. Blocking error when developing a tracking system in the version 6.45.
  2. Backtracking: error in diffuse shading factor calculation (only in V 6.45).
  1. Numerous errors fixed thanks to the Error reporting tool which allows to send
    deteiled reports of your errors to our support team.
  2. Use with Windows XP difficult due to lack of Microsoft maintenance:
    Namely Meteonorm 7.1 requires .NET 4.5, not suported by Win XP.
    => Syntheric generation (normally managed by Meteonorm) has to switch
    to the old generation

In version 6.39 (22.07.2015)

Novelties:
  1. Complete tool for the optimization of shed (rows) systems. Based on series of simulations in batch mode, with optimizing graphs
  2. Helios3D: possibility of importing shading objects.
  3. Ground objects: may be defined explicitely by a custom file (CSV).
Improvements:
  1. Grid injection limitation: may ba applied to E_Grid at the injection point (formerly the limitation was applied at the inverter level).
  2. In the database lists: custom components identified with grey background.
  3. Import from PHOTON database: automatic correction of the Pnom-Vmp*Imp balance, and correction of the default Rs for getting Rel effic = -3% @ 200 W/m2.
  4. On the report: mention the origin of the data for the PV module (“original database” or “custom defined”).
  5. Orientation definition drawing: red point now at a more “logical” position.
  6. Meteonorm 7 management: warns when the .NET V 4.5 framework is not available (previously produced a crash).
Fixed errors:
  1. Blocking error when developing a tracking system in the version 6.45.
  2. Backtracking: error in diffuse shading factor calculation (only in V 6.45).
  1. Errors in the Google maps tool in some very special cases
  2. Tracking planes with not-zero axis orientation: error on shading factor (normally low, increases with Azimuth deviation).
  3. Calculation of mixed-orientation fields: sometimes balance errors in the loss-diagram (but the simulation result is correct).
  4. Domestic uses: seasons not updated for southern latitudes.
  5. Load definition: some dialog errors or inconsistencies.
  6. 3D Shading tool, namely Zone definitions: still some improvements and bugs fixed.

In version 6.38 (13.05.2015)

Improvements:
  1. Blocking error when developing a tracking system in the version 6.45.
  2. Backtracking: error in diffuse shading factor calculation (only in V 6.45).
  1. SolarGIS import of old versions 1.7 (incl. multi-year).
  2. Sizing tool: PNom ratio also showed for inverter’s Pmax = f(temperature).
Fixed errors:
  1. Error in report printing  (some pages partially printed)
  2. Batch: Nb of inverter inputs didn’t work with multi-MPPT inverters
  3. Module Layout electrical I/V drawing tool: errors with tracking systems (but the simulation is correct)

In version 6.37 (01.05.2015)

Fixed errors:
  1. Error in near shadings positioning

In version 6.36 (30.04.2015)

Novelties:
  1. Shading calculations on a specified partial system => Allows the evaluation of very big systems with reasonable computing time.
  2. 3D editor: Management of object’s groups, lists of grouped objects, common modifications on groups of objects.
  3. Import of SolarGIS multi-year files, and written in UT (universal time).
  4. Tool for comparing meteo data (different years, or different sources) Graphs and probability profile for P90 evaluation, average and RMS.
  5. Create meteo files with clear sky model for system oper. analysis and sizing.
Improvements:
  1. Improved Perspective view, define observer’s position, focus on some selected object.
  2. New help for Sub-array and Multi-MPPT management.
  3. Import of Meteo Files in Standard format: management of missing data (-99)
Fixed errors:
  1. Meteonorm V 7.1: Diffuse and Temperature not quite well renormalized
  2. When defining Backtracking, the 3D construction is now mandatory
  3. Batch simulation: the AC wiring loss was not operational
  4. Report for Tracking systems: parasitic label about orientation
  5. SolarEdge inverters: possibility of fractional inputs still did’nt work
  6. First use of the program: the workspace was not automatically created
  7. PDF creation during batchs: crashes

In version 6.35 (24.03.2015)

Novelties:
  1. Meteonorm 7.1 included   (replaces Meteonorm 6.1)
  2. AC modules: identification in the database, and automatic choice of the partner.
Improvements:
  1. Tool for the study and understanding of electrical shading effects:
    completely rewritten, with side-window plot
  2. Possibility of recording OND files in the old format compatible with V < 6.27
  3. Management of the workspace, INI file and license in some special environments
Fixed errors:
  1. Mixed-orientation arrays: Error in the simulation in V 6.33 ans 6.34
  2. Mixed-orientation arrays: Sometimes errors in the display of number of strings
  3. MPPT Adjust button now available for MPPT power sharing
  4. Changing Availability sometimes changed the manufacturer

In version 6.34 (06.02.2015)

Fixed errors:
  1. SolarEdge inverters: possibility of fractional inputs did’nt work anymore
  2. System definition dialog: uncorrect display of some indicative values

In version 6.33 (29.01.2015)

Novelties:
  1. Meteonorm 7.1 included   (replaces Meteonorm 6.1)
  2. AC modules: identification in the database, and automatic choice of the partner.
  1. Shadings 3D:
    – definition/manual modifications of a terrain,
    – definition of zones for positioning “tables” (rectangular or polygonal)
    – distribution and common modifications of a set of tables in the zone .
  2. Multi-MPPT inverters: adjustable Pnom sharing between MPPT inputs.
Improvements:
  1. Tool for the study and understanding of electrical shading effects:
    completely rewritten, with side-window plot
  2. Possibility of recording OND files in the old format compatible with V < 6.27
  3. Management of the workspace, INI file and license in some special environments
  4. Overload losses calculation at sizing time (also for Pnom(Temperature)). => PNom ratio quick calculation depending on Pnom(Temp) and CosPhi
  5. Module layout shading calculations:
    – calculation accuracy for sheds: true calculation of the Linear part.
    – takes 2nd maximum if under VmppMin.
  6. Added several special graphs (sorted values, array temp. distribution, etc)
  7. Shading on diffuse for tracking systems: positive azimuths => full calculation (previously supposed symmetrical => errors with significant horizon)
  8. Help for Inverters: reviewed for new features (Pnom=f(temp), power factor, etc)
Fixed errors:
  1. IAM definition in the Module (import from EXCEL crashed + profile not shown)
  2. Electrical behavior of PV arrays tool (shadings): I/V curves display problems
  3. Concentrating systems: error on the loss diagram (but not in calculation)
  4. Pumping: initialization of pressurization systems

In version 6.32 (14.11.2014)

Improvements:
  1. Auxiliaries losses: improvements and auto activation when specified in Inverter.
  2. Report: issues with Power factor, harmonized units as kVA instead of kWh, shows Eapparent as main result, etc….
  3. Helios3D: improved calculation speed, tolerance to erroneous inputs of h2d files.
Fixed errors:
  1. 2-axis and versical axis Tracking systems in southern hemisphere: error in the Diffuse shading factor.
  2. Helioclim data import: also accepts values expressed in TU.
  3. ModuleLayout, display of electrical effect: crashed.
  4. Electrical shading loss: thresholds on Linear contribution (V 6.26) also suppressed the contribution of thin objects.
  5. Pumping systems: unit error in the definition of the daily load.
  6. Bug limiting the rights for update for some few users.
  7. Bug when reading SolarGIS monthly data (from V 6.31).
  8. IAM loss management: transfer problems with Multi-arrays.
  9. Module Layout dialog: several problems solved.

In version 6.31 (31.10.2014)

Not available!

In version 6.30 (30.09.2014)

Improvements:
  1. Tigo DC converters: some updates.
Fixed errors:
  1. Error in the calculation with CdTe modules (in versions 6.27 to 6.29).
  2. Inverters: page for temperature behavior of Pnom now available.

In version 6.29 824.09.2014)

Fixed errors:
  1. Fixed bug in 3D shading tool.

In version 6.28 (22.09.2014)

Fixed errors:
  1. Fixed bug in electrical loss.

In version 6.27 (19.09.2014)

Novelties:
  1. Carbon balance (CO2): evaluation tool and new page on the report.
  2. Management of Tigo optimizers, including definition, operating and shadings
  3. Inverters: temperature dependency of the nominal power (Pmax use, and high temperatures derate), specification of the Power Facor capability
Improvements:
  1. Auxiliary losses now explicitely specified.
  2. Component dialogs, 1st page: info availability an original database/custom.
  3. Big systems shading studies:* Improved calculation time of some verifications* Possibility of desabling the mutual interpenetration of fields (Helios3D)* Execution of some tests upon command instead of automatic* Helios3D: improved orientation analysis and tests.* Many objects: choice of selected object improved
  4. AC Losses after the inverter: take the Power Factor into account
  5. Improved the model of Shading Electrical loss: was enabled as soon as linear shading was present; now with a threshold (partial cell sheding).
  6. Batch simulations: still some updates.
Fixed errors:
  1. Synthetic generation: sometimes wind data (according to Meteonorm) were added.
  2. Master/Slave operation: error when the Vmppmin was reached.
  3. Littles errors (fonts) fixed in the report.

In version 6.27 (19.09.2014)

Novelties:
  1. Carbon balance (CO2): evaluation tool and new page on the report.
  2. Management of Tigo optimizers, including definition, operating and shadings
  3. Inverters: temperature dependency of the nominal power (Pmax use, and high temperatures derate), specification of the Power Facor capability
Improvements:
  1. Auxiliary losses now explicitely specified.
  2. Component dialogs, 1st page: info availability an original database/custom.
  3. Big systems shading studies:* Improved calculation time of some verifications* Possibility of desabling the mutual interpenetration of fields (Helios3D)* Execution of some tests upon command instead of automatic* Helios3D: improved orientation analysis and tests.* Many objects: choice of selected object improved
  4. AC Losses after the inverter: take the Power Factor into account
  5. Improved the model of Shading Electrical loss: was enabled as soon as linear shading was present; now with a threshold (partial cell sheding).
  6. Batch simulations: still some updates.
Fixed errors:
  1. Synthetic generation: sometimes wind data (according to Meteonorm) were added.
  2. Master/Slave operation: error when the Vmppmin was reached.
  3. Littles errors (fonts) fixed in the report.

In version 6.26 (31.07.2014)

Novelties:
  1. Carbon balance (CO2): evaluation tool and new page on the report.
  2. Management of Tigo optimizers, including definition, operating and shadings
  3. Inverters: temperature dependency of the nominal power (Pmax use, and high temperatures derate), specification of the Power Facor capability
  1. PV module Rserie default value: according to 200 W/m2 relative efficiency (-3%).
  2. * Effect: only concerns modules for which the Rserie has not been specified. Low-light behaviour very close to modules with Manuf. specified Rserie
  3. PV module temperature behaviour
  4. * Up to now: the specified muPmpp value was the derivative at 25°C.
  5. * muPmpp calculated at 25 and 45°C: improves matching with the linear behaviour reported by measurements at oper. temperatures.
  6. * Effect: slightly decreases the temperature loss.
Improvements:
  1. Batch mode, significantly improved:
  2. * easier file management (re-use of old files), several new parameters;
  3. * Possibility of specifying a list of VCi (i.e. resimulate a whole project).
  4. Resistivity default values revised  (effect: slight decrease of Wiring loss).
Fixed errors:
  1. Helios3D management: error in verifications of orientations (spread) fixed. This sometimes prevented using old Helios3D scenes.
  2. Hay model: when the sun is behind the plane, the beam component doesn’t contribute to albedo (negligible effect with usual systems).
  3. Big shading systems: optimized a time-consuming verification.

In version 6.25 (16.06.2014)

Novelties:
  1. Main improvement about ModuleLayout management:
  2. All tables shown on a single plane – possibility of moving them
  3. Working table directly selectable on the 3D view
  4. Possible saving as an image  (BMP, JPG, or PNG: transparent)
  5. Print of the whole ModuleLayout definition
  6. Several Improvements/Optimizations inthe dialog and elaboration
  7. Export of results in the Report preview: Loss diagram also exportable
Improvements:
  1. Rewrote the batch mode, improvements
  2. Big shading scenes: general dialog speed optimizations
Fixed errors:
  1. Optimization of shading factor calculation was not activeted by default

In version 6.24 (21.05.2014)

Novelties:
  1. Report preview: new possibility of modifying units and language.
  2. Report preview: possibility of “Copying” the chosen results in the clipboard for analysis and versions comparisons in EXCEL.
Fixed errors:
  1. Error in Batch mode, when redefining the number of inverters.
  2. Printer choice: always takes the Default printer: fixed.
  3. Many bugs fixes after implementing the tool for reporting runtime errors.

In version 6.23 (01.05.2014)

Fixed errors:
  1. Mixed-orientation systems: sometimes error in the simulation => Inverter loss may be underevaluated by around -0.3%..

  2. Tracking 1-axis with not south-axis: some incoherences and modif. impossibilities in the definition dialog (not affecting simulation results).

  3. Prevent opening the software twice simultaneously, which may produce some conflicts.

  4. Grid Input/Output plots: showed variable E_Avail instead of E_Grid.

  5. Several minor dialog and display errors or improvements.

  6. Database update.

In version 6.22 (24.03.2014)

Novelties:
  1. Meteo conversion: import of year in the DD|MM|hh|mm format.
Fixed errors:
  1. SolarEdge: do not check number of strings or modules.
  2. 3D tool: fix window which could freeze.
  3. Added a new reporting tool in case PVsyst is crashing.

In version 6.21 (13.03.2014)

Fixed errors:
  1. Error when displaying some 3D scenes – 3D scene not written on the report.
  2. Backtracking definition management: sometimes choice not accepted.

In version 6.20 (10.03.2014)

Novelties:
  1. Import ASCII meteo files: complete revision of the DST management, included then DST dates for the USA. Also valid for years not beginning in January, and southern hemisphere.
Improvements:
  1. Default component choice: available now.
Fixed errors:
  1. Synthetic generation: sometimes wind data (according to Meteonorm) were added.
  2. Master/Slave operation: error when the Vmppmin was reached.
  3. Littles errors (fonts) fixed in the report.
  1. Report: some little problems solved (fonts on second page of parameters).
  2. Module Layout electrical calculations: simulation error in some special cases => alterate the Inverter losses.
  3. Improved speed when clicking on “Create variant from…” in the main project dialog.
  4. Improved logo quality on printed report.

In version 6.19 (11.02.2014)

  1. Auxiliary losses now explicitely specified.
  2. Component dialogs, 1st page: info availability an original database/custom.
  3. Big systems shading studies:* Improved calculation time of some verifications* Possibility of desabling the mutual interpenetration of fields (Helios3D)* Execution of some tests upon command instead of automatic* Helios3D: improved orientation analysis and tests.* Many objects: choice of selected object improved
  4. AC Losses after the inverter: take the Power Factor into account
  5. Improved the model of Shading Electrical loss: was enabled as soon as linear shading was present; now with a threshold (partial cell sheding).
  6. Batch simulations: still some updates.
  1. Display of the Modules and they electrical attribution by colors (by Module Layout) directly in the Perspective view.
  2. Save this perspective view as a BMP, JPG, PNG or SVG image for use in other drawing softwares.
  3. Report improvement: avoid long component name’s overwriting, Long calculation version titles on 2 lines.
  4. Import ASCII meteo and data files: error messages and dialog improvements, reads dates without specified years; DataMeas: reads multi-fields.
  5. Error in simulation of shading with thin objects: shading loss overevaluated.
  6. Error in electrical shading losses: loss correction on voltage instead of current => only effect: loss if the voltage becomes below the Inverter VmppMin .
  7. Unlimited sheds: parameter not well read on file => azimut aberrant value.
  8. Errors in mixed orientations: little effects on shadings with horizon.
  9. Irradiance and Temperature loss not well displayed (but correct calculation).

In version 6.18 (31.01.2014)

  1. Definition of 3D fields: now possible directly by specifying the number of modules in width and in length. Polygonal 3D field: by positioning each module individually with mouse.

  2. Module Layout tool: you can now have a side-view of the 3D perspective with visualization of the edited table in red and choosing the table to be edited in the 3D drawing.

  3. Tables of Hourly values for each month, for any variable of the simulation.

  4. Update of the program: performs a back-up of all user’s files, allowing to retrieve the simulations with old versions.

  5. Off-line deactivation of the license: bug fixed.

  6. Update of the ModuleLayout for fields added in the 3D part: bug fixed.

  7. Import of ASCII meteo files: warnings improved and bugs fixed.

  8. Import of ASCII files of measured data: multi-fields now working.

  9. Grid power limitation: bug fixed when defining several sub-arrays.

In version 6.18 (31.01.2014)

  1. Definition of 3D fields: now possible directly by specifying the number of modules in width and in length. Polygonal 3D field: by positioning each module individually with mouse.

  2. Module Layout tool: you can now have a side-view of the 3D perspective with visualization of the edited table in red and choosing the table to be edited in the 3D drawing.

  3. Tables of Hourly values for each month, for any variable of the simulation.

  4. Update of the program: performs a back-up of all user’s files, allowing to retrieve the simulations with old versions.

  5. Off-line deactivation of the license: bug fixed.

  6. Update of the ModuleLayout for fields added in the 3D part: bug fixed.

  7. Import of ASCII meteo files: warnings improved and bugs fixed.

  8. Import of ASCII files of measured data: multi-fields now working.

  9. Grid power limitation: bug fixed when defining several sub-arrays.

In version 6.10 (23.07.2013)

  1. Shading on diffuse factors not calculated for other systems than tracking – Don’t use V6.0.9 !
  2. GoogleMap tool has changed, search by Map not working anymore: update of PVsyst accordingly.
  3. Diffuse shading factors for tracking systems: were computed with Shading Factor Table with tracking => error Backtracking now calculated for several tracker positions.
  4. Pump definition: dialog for definitions acc. to efficiency not working. Included a new line of contrifugal industrial pumps in the database.
  5. Little updates in the importation of Meteo files, esp Satellight.
  6. Corrected Horizon in Meteonorm, bad defined for southern hemisphere.

In version 6.18 (31.01.2014)

  1. Definition of 3D fields: now possible directly by specifying the number of modules in width and in length. Polygonal 3D field: by positioning each module individually with mouse.

  2. Module Layout tool: you can now have a side-view of the 3D perspective with visualization of the edited table in red and choosing the table to be edited in the 3D drawing.

  3. Tables of Hourly values for each month, for any variable of the simulation.

  4. Update of the program: performs a back-up of all user’s files, allowing to retrieve the simulations with old versions.

  5. Off-line deactivation of the license: bug fixed.

  6. Update of the ModuleLayout for fields added in the 3D part: bug fixed.

  7. Import of ASCII meteo files: warnings improved and bugs fixed.

  8. Import of ASCII files of measured data: multi-fields now working.

  9. Grid power limitation: bug fixed when defining several sub-arrays.

In version 6.11 (26.08.2013)

  1. Tool for P50-P90 evaluation => new page on the report
  2. Possibility of defining a Power Factor for the grid requirement.
  3. Possibility of defining a Grid Power limitation (incl. with Power factor).
  4. Checked all tracking options for southern hemisphere.
  5. Shading factor optimizations: fixed for very long objects or planes. Improved for Building Objects.
  6. Error#9 when defining Tracking without defining 3D scene: fixed.
  7. Error with 3D Polygonal fields: fixed
  8. Writing unavailability parameters on file
  9. Error when defining load profile by an hourly file: fixed. Improved hourly load plot
  10. Importing meteonorm data: sometimes kept previous GHI definition
  11. SolarEdge: fractional MPPT didn’t work anymore
  12. Found deep error sometimes in the Synthetic Hourly dialog (=> Site
    corrupted). may explain many unidentified crashes of the software in diverse situations
  13. Securized messages when a VCi file is invalid
  14. Batchmode: Backtracking changes not taken into account
  15. Batchmode: 3D scene not actualized with some parameter changes
  16. System verifications: some possible errors not accounted (e.g. Module sizes)
  17. Import/export projects and components improved.
  18. Fixed issue with latest available Pvsyst version.
  19. Added proxy support for internet access (Preferences >> Web).
  20. Added window autoscrolling for small screens.
  21. Enabled unicode support (for ex. Asian characters) for user data file paths.

In version 6.12 (24.09.2013)

  1. SOLARGIS files: complete tool for direct import of all their products: Specific year, TMY, monthly averages or pluri-annual files
  2. PVGIS import: the negative Longitude sign is not read correctly
  3. PV modules import:  PHOTON site has changed, updated accordingly
  4. Simple tool for direct Import/Export of single projects
  5. Light Soaking, LID or IAM defined in the module specifications: directly taken into account in the detailed losses
  6. Module Layout: fields not refreshed when modifying the 3D shading scene
  7. Wind velocity monthly specifications overwritten by Meteonorm
  8. Simulation with shadings: sometimes crashes at beginning (error#9)
  9. Sometimes errors in shading factor when several sub-arrays
  10. Import ASCII meteo files: year 2000 not recognized as leap year
  11. Definition of project’s site: sometimes erases Meteo file (with POA data)
  12. Logo display on report bug (size): fixed

In version 6.13 (09.12.2013)

  1. Main implementation: Multi-orientation.
  2. Possibility of defining up to 8 different orientations.
  3. Independent shading calculation for each orientation.
  4. Heterogeneous fields: replaced by this Multi-orientation option.
  5. Removed restrictions on the orientation differences and nb of sub-arrays.
  6. Seasonal tilt: now possible with 3D shading calculations.
  7. Electrical Sub-array: now with Name and eventual Orientation definition.
  8. “System summary” new window, available from different places for a general overview of the params defined for the calculation version.
  9. Gives a list of: Orientations, sub-arrays, shading 3D fields defined.
  10. Identifies the uncompatibilities between these 3 entities (orientation and areas matching), provides cibled warnings when necessary.
  11. Deep revision on the verification on system’s compatibilities.
  12. Shading and IAM factor on Albedo: improved the calculations (integral model).
  13. Focusing CPV systems: errors in the loss diagram view (not in the results).
  14. Unavailability loss: not stored correctly with the calculation version.
  15. SolarGIS import and Meteonorm synthetic generation: sometimes crashed.
  16. Simulation ASCII files: crashed when more than 30 parameters defined.
  17. Batch simulations: inverter changes not taken into account.
  18. New tutorial about “My first Project”, “Meteo Management”, “Linear shadings”.
  19. Meteo import: fixed Internet Explorer error displayed in importation tool.
  20. Meteonorm: fixed crash when generating data based on Solargis data.
  21. Dialog fonts: added an application setting to change font dynamically for all dialogs.
  22. MSI installation file: fixed signature issue in Internet Explorer 9/10.
  23. Simulation: improved simulation speed (20%).
  24. Project: fixed error when reading list of projects in File >> Export projects.
  25. License: added dialogs to warn and show deactivation link for off-line license transfer.
  26. License: fixed error when reading license when there are more than one hard disk.

In version 6.14 (16.12.2013)

  1. Problems fixed with shadings – crashed in the “Shadings” dialog.
  2. Problems fixed concerning sheds with not null Baseslope.
  3. Infinite loop in some calculations (Shadings “According to strings”).
  4. Shadings “According to strings” not well computed when linear shadings < 0.5%.
  5. Regulator (controller) dialog improved when modifying the nominal power.

In version 6.15 (20.12.2013)

    1. Erroneous values displayed in the “Results” dialog.
    2. Some improvemebnts in the Multi-orientation warnings and the report.
    3. Helios3D  now working with Multi-orientation.
    4. PV module definition from Low-light data: crashed.
    5. Summary dialog: copy to clipboard.
    6. Value of the Wiring resistance is sometimes modified to aberrant values. We didn’t yet identify the origin of this random (and rare) problem, but we protected the simulation by asking the user for correcting the parameter..
    7. Fixed failure when reading license after the update on some environements.

In version 6.16 (03.01.2014)

  1. Report: Parameters may be printed on more than 2 pages.
  2. Report: Visualization of a saved 3D scene improved. Check of this visualization in the 3D editor.
  3. Sometimes erronous value in the Array wiring resistance, fixed. Some logs for tracking this errors in V 6.14 crashed the program.

In version 6.17 (10.01.2014)

  1. Error since V 6.14: Electric loss (Module Layout option) not  calculated.
  2. Shading factor table according to strings not written on file (recomputed).
  3. Report: first page not complete for Stand-alone systems.
  4. Meteo monthly tables: line of yearly values erroneous.

In version 6.09 (19.07.2013)

  1. GoogleMap tool has changed, search by Map not working anymore: update of PVsyst accordingly.
  2. Diffuse shading factors for tracking systems: were computed with Shading Factor Table with tracking => error Backtracking now calculated for several tracker positions.
  3. Pump definition: dialog for definitions acc. to efficiency not working. Included a new line of contrifugal industrial pumps in the database.
  4. Little updates in the importation of Meteo files, esp Satellight.
  5. Corrected Horizon in Meteonorm, bad defined for southern hemisphere.

In version 6.08 (27.06.2013)

  1. LID and Light-soaking loss parameter not written on the file.
  2. Securization of the ohmic loss dialog (sometimes crashes).
  3. Simulation with voltage limit for getting full Pmpp: error fixed.
  4. Report: Nb of inverters not correct with unbalanced MPPT suppression of the NOCT info line  (not relevant).
  5. Synthetic generation: Diffuse renormalization to input values not effective Wind velocities created by Meteonorm without input data.
  6. Satellight import: error in the avaraging over 5 years.
  7. TMY2 import: modif for accepting little imperfections to input format.
  8. Stand-alone and pumping systems: error at simulation beginning.
  9. System sizing, Shading dialogs: sometimes crashed.
  10. Meteo data import: accept solarimeter azimuth over ±90°.
  11. Logo not visible in report: fixed.

In version 6.07 (29.05.2013)

  1. TMY3 import: still errors with some locations.
  2. Satellight meteo data: added an automatic  6 minutes time shift.
  3. In Project’s site definition: securized copy  Meteo => site.
  4. Master/Slave operation: fixed in simulation and module layout.
  5. SolarEdge, fractional inputs: fixed efficiency and overload.
  6. Helios3D import for southern hemisphere: still some angle definitions errors.
  7. Sometimes empty meteo data: additional warnings, securized System definition.

In version 6.06 (26.04.2013)

  1. TMY3 import: extended accepted separator to semicolon => possibility of modifying CSV file in EXCEL.
  2. Shading factor “according to string” calculation: sometimes error when 2 shades in the same rectangle.
  3. Solaredgs systems with fractional inverter: still an error in the simulation.
  4. Heterogeneous fields with only mixed field: didn’t appear in choices.
  5. Hidden parameters edition: “Miscellaneous” topic had disappeared.
  6. ModuleLayout: default value for nb. of diodes now according to module def.
  7. Fixed character issues in simulation report.

In version 6.05 (12.04.2013)

  1. Systems with overload: calculation error in some cases (=> over-evaluated loss).
  2. Shadings with partition in module strings: sometimes hangs up.
  3. Import TMY3 format: extended possibilities for other sources (SAM in India). Now possible to import specific years, leap years, data source modifiable.
  4. Import of meteo ASCII files: extended to some very strange data formats.
  5. Import of Standard PVsyst format: added a parameter for time stamp hour shift. Adapted for importing DHI + DNI measurements.
  6. Tracking frames: extended accepted angle limits.
  7. Inverter definition dialog: sometimes crashed.
  8. Meteo data tables: Last day missing.
  9. New installation per-machine.

In version 6.04 (21.03.2013)

  1. Slight error in the module database;
  2. Import of PVGIS data: adapted for Internet Explorer 10;
  3. Solaredgs systems with fractional inverter inputs did’nt work;
  4. Display of  IAMLoss and ShdLoss values.

In version 6.03 (19.03.2013)

  1. Import Satel-light data: updated, the original source format has been changed.
  2. Low-light data specifications for PV modules: improved the dialog
  3. Import of ASCII meteo files: error with new Meteo files definition of V6.
  4. Database update.

In version 6.02 (28.02.2013)

  1. Mismatch tool: crash if PV module of the project not yet defined calculation on Inverter inputs, not the full sub-array
  2. Batch Mode tool: new parameters, update creation of hourly files
  3. File creation for simulation: memorization of the specified variables
  4. Project: displaced several settings of the Hidden parameters, specific to the project, to the project’s settings
  5. Project: Add. settings: choice for Vmax IEC or UL
  6. Oportunity of using muVoc specified instead of from model.

New Version 6.0 BETA (05.02.2013)

!!! A license synchronization is required before the update of PVsyst !!!

“Meteonorm Inside”

– Direct search of any location on the earth, using the well-known GoogleMap tool.
– Immediately get the monthly meteo values for any site, using the interpolating possibilities of Meteonorm 6.1.
– Synthetic generation of hourly values uses now the Meteonorm algorithm, improved by respect to the old PVsyst algorithm.
– Included import of meteo values from new databases, for example SolarAnywhere (SUNY model) satellite recent data covering the whole USA.
– Transposition model on tilted planes: Perez model now proposed as default instead of Hay, leqading to an increase of 0
– 2% yearly sum according to climate and orientation.

New Project management and simulation process

– New Project management Dashboard, with direct access to all parameters, simulation and results in a single dialog.
– Improved project management: copy, saving, transfers of calculation versions from projects to projects, copy of full projects.
– Losses: new organization of the loss diagram. New losses like LID, System unavailability, Inverter auxiliary or night consumption, Light-soaking gains for CIS.
– Batch mode for parametric studies: allowing to vary parameters in an EXCEL document, and get chosen simulation results of multiple runs as a table.

Improved shading calculations

– Direct shading factor calculation during the simulation (avoiding the interpolation uncertainties in the shading factor table).
– Optimization of the calculation of the shading factor, allowing calculations of big PV plants without limitation to some hundredth of trows or trackers (factor of 10 on the speed).
– Plants following the terrain, imported by Helios3D: analysis of the spread of orientations, management of the orientation average.

Detailed electrical shading losses

– Refinement of the “module layout” part, which allows to define the position of each PV module on the areas (“tables”) defined in the 3D shading tool.
– Modules arrangement in portrait or landscape, sub-modules in length or width within each module.
– Attribution of each module to a given string and inverter.
– Detailed calculation of the I/V characteristics under partial shadings in each Inverter input, either as pedagogic plot, and during the simulation for the determination of the “electrical losses” due to the shading mismatch.

New Project management and simulation process

– New Project management Dashboard, with direct access to all parameters, simulation and results in a single dialog.
– Improved project management: copy, saving, transfers of calculation versions from projects to projects, copy of full projects.
– Losses: new organization of the loss diagram. New losses like LID, System unavailability, Inverter auxiliary or night consumption, Light-soaking gains for CIS.
– Batch mode for parametric studies: allowing to vary parameters in an EXCEL document, and get chosen simulation results of multiple runs as a table.

PV modules

– Tools for specifiying low-light performances, and adjustment of the Rserie parameter accordingly. Low-light efficiencies may be included in the parameters in the database.
– Modification of the default values for Gamma, when Rseries is not explicitely defined by the manufacturer, giving significant higher yields of 2-3%.
– Import of a measured I/V curve for the establishment of the model’s parameters. – Sandia model implementation, and comparison with the one-diode model.
– New parameters: IAM profile in the module’s parameters, Vmax(UL) for use in US, full tolerance definition, LID for crystalline and Light-soaking for CIS.
– Easy choice of modules by manufacturers.

Inverters

– Multi-MPPT with unbalanced inputs
– define main and secondary inputs.
– Additional parameters: transformer specification, CEC average efficiency for US, auxiliary and night losses.
– Easy choice of inverters by manufacturers.

Software Installation and Background

– New file organization, with clear distinction between internal database and custom files.
– New data management, easy copy of the the full custom data set from previous installations, no problems of Administration rights anymore.
– Certified installing package by PVsyst SA, registered in Windows.
– Easy automatic updates.
– New protection management