What can I do with these data? |
Solar systems and required solar component
- Flat-plate photovoltaic systems => GHI: Global Horizontal Irradiation
- Concentrating photovoltaic systems => BNI: Beam Normal Irradiation
- Parabolic through concentrating solar power systems => BNI: Beam Normal Irradiation
- Power tower concentrating solar power systems (molten salt and direct steam) => BNI: Beam Normal Irradiation
- Linear Fresnel concentrating solar power systems => BNI: Beam Normal Irradiation
- Dish-Stirling concentrating solar power systems => BNI: Beam Normal Irradiation
- Solar water heating for residential or commercial buildings => GHI: Global Horizontal Irradiation
the solar capacity per region
Computation of the solar capacity per region: it is totally correct to take the global inclined component of the solar radiation. It will estimate what should actually be collected by your titled solar panel (do not forget that azimuth of the plane is 180° to aim the South direction). But we are not sure with your 0.7 coefficient.
Generally, an approximate estimation of the annual production of panels is:
Annual production = annual GTI (Wh/m2) * surface (m²) * Epv (efficiency photovoltaic panels) * Pr (Performance ratio)
…where:
Epv belongs to the interval [0.1, 0.17] (0.19 for the best solar panels), a typical value is 0.12, and,
Pr gives an indicator of the global quality of the production chain (inverters, cabling, near shadowing effects…) with a value between [0.5, 0.9] and a typical value of 0.8.
ou: Production = GHI ou GTI * Puissance nominale en kW crete * Pr
PvSystThe importation of HelioClim data is not yet possible following the help of the software.
"Please remember that averaging hourly values doesn't make sense: only monthly values are sufficiently aggregated to be averaged over several years. But in this case you loose the advantage of hourly measurements." Wise advise of Pierre Ineichen.
Last update: 2/23/12 5:20 PM