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<< Click to Display Table of Contents >> PV modules - Basic data page |
  
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<< Click to Display Table of Contents >> PV modules - Basic data page |
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PV module identifiers:
| Model and Manufacturer: | will appear in the module choice lists. |
| Data source: | Usually the manufacturer and the year of the latest update. Up to 2009 we used the yearly survey issued in PHOTON magazine. |
| File name: | should have the extension '.PAN. This is the primary key of the database, therefore should be unique. We use to give the form Manufacturer_Model.PAN, with possible simplifications in the model name. |
| Nominal power | is the rated power specified by the manufacturer at STC (often designed as "Nameplate" value). It will be used to determine the "installed power" of systems, which is involved namely in the Performance Ratio. It could sometimes be slightly different from the MPP model result. It may also be different from the rated Imp * Vmp product (specification's inconsistencies). |
| Tolerances | are the rated limits of the Nominal power dispersion, given by the manufacturer. The tolerances are used as default value for the Module Quality Loss parameter. |
| Technology | gives choice for the PV module technology. PVsyst proposes a model (variations of the standard one-diode model) applicable to all main technologies available on the market. |
Manufacturer Specifications or Other measurements
These parameters are the main electrical module characteristics, available on any manufacturer data sheets. They are usually given for STC, but the program accepts measurements performed under other conditions to establish the model from on-site measurements in outdoor conditions.
These parameters therefore include:
| Gref and Tref: | the reference irradiation and module temperature conditions during reference measurements (usually STC). |
| Isc and Voc: | module short circuit current and open circuit voltage at these given conditions. |
| Impp and Vmpp: | any operating point in the region of the maximum power point at these given conditions. |
| muIsc : | temperature coefficient for Isc. This has only weak influence on the module behaviour. When not known, it can be taken as about 0.05%/°C. |
Model summary
Gathers all relevant parameters of the model, defined on the other pages, mainly "Model parameters". See Parameter summary for a complete description
Internal model result tool
When the model is fully established and operational, this special tool gives the behavior (results) of the model for any specified Irradiance and Temperature.
(Sandia) Model Used
This option appears when a corresponding module is available in the Sandia database.
The Sandia model may be visualized and compared using the button "Sandia-Diode comparison".