PVsyst versions

Loads the data from the PV systems and provides extensive studies and sizing
7.2
Apr 11, 2024
6.4
Jan 19, 2016
Review
6.3
Oct 6, 2014
Review
6.2
Mar 11, 2014
6.1
Aug 6, 2013
6.0
Feb 25, 2013
Review
Feb 28, 2013
Review
5.5
Sep 23, 2011
Editorial review
rating
5.0
Oct 10, 2009
Review

What's new

v6.4 [Jan 19, 2016]
May include unspecified updates, enhancements, or bug fixes.

v6.0 [Feb 25, 2013]
Financial balance with net-metering: error when defining consumption tariff
Shadings acc. to module strings: little error in some rare cases

v6.0 [Feb 28, 2013]
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.
Project management and simulation process
- 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.
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.
- 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.
Program Installation and Background
- file organization, with clear distinction between internal database and custom files.
- 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.
- protection management.

v5.5 [Sep 23, 2011]
1. Read Meteonorm: problems (monthly irrad=0) near polar circle
2. Inverter 3-voltages efficiency: OK if 2 voltages identical
3. Inverter and PVModule export to EXCEL:
decimal dot or comma acc. to international settings
4. Monthly tables: errors in units for Yr and Ya
5. Report: corrections (economics) and improvements (shadings)

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