A new report from DNV–GL concludes that RST improved production by nearly 20% over a 10-week Summer study period. At the start of the study period, all the panels on the roof were cleaned so RST panel performance was the same as all other panels on the roof. After 10 weeks, RST panels showed a nearly 20% increase in production. This averaged out to 7.5% increase in production over these 10 weeks alone.
Combined with the other study period in the Spring, DNV–GL concludes that RST-cleaned panels would have resulted in over a 30% increase in production.
Read the full report here.