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.