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