Suggested Modifications for Bifacial Capacity Testing
Martin Waters1, Chris Deline2, Jeffrey Webber1, Johan Kemnitz1
1Cypress Creek Renewables, Santa Monica, CA, United States
/22National Renewable Energy Laboratory, Golden, CO, United States

Currently capacity tests such as those described in ASTM 2848 and IEC 61724-2 are widely used during the contracting and acceptance testing of PV systems. With the increasing deployment of bifacial PV modules, there is a need to develop a standardized approach to capacity test these systems. This paper proposes modifications to the ASTM 2848 approach to allow it to be used for bifacial systems. It will look at the validity of the approach both through modeled data and observed data from three field installations.

Area: Sub-Area 8.4: System Performance Rating and Monitoring Strategies