Performance Calculation for Grid-connected Photovoltaic Systems

Performance Calculation for Grid-connected Photovoltaic Systems

Please enter here your data or choose parameters of the following lists.

kWh/(m2 a)
m2
%
%
(e.g. 35 % at flat roofs)
%
%
%
US$/kWp
years
%

Annotations for the performance calculations:

The radiation values are taken from the European Solar Radiation Atlas, Springer Verlag 1996. The module values are given in the German specialists book Understanding Renewable Energy Systems.

The installable electrical power is calculated as follows:
P = Aroof fuse * focc * eta

The electrical ouput is given by:
EPV = Hhor * Aroof fuse * focc * (100 % + fslope) * eta * PR

The specific annual output is calculated:
YF = EPV / P

The total costs are:
ktot = P * krel * 1/kW

The levelized electricity cost without maintenance costs are calculated as follows:
kE = ktot * p / (1 - (1 + p)^-n) / EPV

Attention: This performance analysis is only a rough estimation that can not replace a detailed planning and analysis. No responsibility is accepted for the correctness of this information.

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