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Performance of Rooftop PV Systems in Selected European Countries from 2012 to 2019
J. Schardt, H. te Heesen
Evaluation, Performance, Rooftop, Energy Rating
PV Systems and Storage – Modelling, Design, Operation and Performance
Subtopic: Operation, Performance and Maintenance of PV Systems
Event: 37th European Photovoltaic Solar Energy Conference and Exhibition
Session: 5DO.5.4
1409 - 1412
ISBN: 3-936338-73-6
Paper DOI: 10.4229/EUPVSEC20202020-5DO.5.4
0,00 EUR
Document(s): paper


The electrical energy generated by solar photovoltaic (PV) contributes significantly to the transition to green energy production. A comprehensive analysis of PV systems' yield data and performance is necessary to plan future energy production by solar photovoltaics. This publication evaluates publicly available yield data, configuration, and location of 32,744 rooftop PV systems in Europe. The analyzed period ranges from 2012 to 2019 and has a time resolution of one day. The considered PV systems are installed in the Netherlands, Belgium, Luxembourg, Germany, France, and Italy. The evaluation focuses on the long-term specific yield and performance ratio analysis. The specific yield over the whole area shows the expected south-north gradient. The long-term average specific yields and performance ratio of systems that ran continuously from 2015 to 2019 were 947 kWh/kWp and 0.73 in the Netherlands, 959 kWh/kWp and 0.73 in Belgium, 979 kWh/kWp and 0.73 in Luxembourg, 990 kWh/kWp and 0.74 in Germany, 1102 kWh/kWp and 0.73 in France, and 1195 kWh/kWp and 0.73 in Italy. The average performance ratio of PV systems operated for five consecutive years from 2015 to 2019 shows no correlation with system capacity. The performance trend of PV systems installed after 2008 does not increase.