Investment Analysis

To appraise a BIPV system two calculations can be used. The first is based on the energy cost produced: keeping in mind the cost of the initial capital, interest rate of a possible loan, maintenance and reparation costs, and parts replacement cost (inverter) and possible subsidy benefits from installed kWp. The second consists of calculating the proceeds from the produced energy sold and mainly depends on the conditions of the Country.

The following are two examples related to these introduced calculations. These evaluations are subject however to uncertainties, because in practice it is difficult to consider in detail all the different components, as for instance future interest rates, inflation, variation of the electricity costs and the rules related to the environmental concern, the incentives and the guaranteed prices for the sale of the produced energy.