ABSTRACT
The authors have made sure that the adequacies of the evaluation of PV systems, with developed sophisticated verification (SV) method. The method provided analytical performance factors such as performance ratio, power conditioner efficiency, temperature factor, shading factor, incidence-angle-dependence factor, load matching factor and other array parameter still undefined factor. Using this method, the authors evaluated residential PV systems. However in their systems measuring point is only system-output without a part of sites, therefore we must substitute not measured data for the estimated data from AMeDAS. In this case, we suggest this estimated method and report the result that was evaluated for using that data. As a result, SV method is applied to this data taken at 39 systems for 5 months in Japanese REPP project. The mean system performance ratio K was identified 69.5% for 39 systems in FY 1999. Furthermore in the 29 systems that the estimated data was used system performance ratio identified 70.4%.
