Secondary cells and batteries for renewable energy storage - General requirements and methods of test - Part 1: Photovoltaic off-grid application (IEC 61427-1:2013); German version EN 61427-1:2013
Photovoltaic concentrators (CPV) - Performance testing - Part 3: Performance measurements and power rating (IEC 62670-3:2017); German version EN 62670-3:2017