Sobolt Teams Up With EDP Renewables

Sobolt Teams Up With EDP Renewables

 

The collaboration is focused on further calibrating and validating the statistical model that turns DirtDetect’s soiling measurements into predictions of output loss because of that soiling. For Sobolt, this means new possibilities in providing business value from its satellite data analytics capabilities. For EDPR, DirtDetect is a next step in optimizing the output – and revenue – of its solar parks.

A major problem faced by solar farm owners is soiling. This is the process of dirt accumulation on the solar panels. The dirt will reflect sunlight and therefore reduce the effective power output, and hence influences the revenue from those solar panels. Once the power reduction surpasses a certain limit the solar farm will be cleaned. To know when this cleaning moment takes place the dirt has to be monitored. But cleaning does not come without cost and so monitoring soiling accumulation is an important part of optimizing the revenue of a solar park. How to effectively monitor and forecast this still proves a challenge. Therefore, the solution that DirtDetect provides offers value for companies investing, owning, operating, or maintaining solar farms.

The conventional solution to monitor the dirt accumulation is with ground-based reference modules consisting of two panels. One panel will be cleaned continuously, whereas the other will not. The difference between the power output of these two panels is a measure for the soiling. There is a large problem with this approach. Typically, there will only be one measuring panel for every 5MW of installed capacity. This corresponds to one panel in every 15,000 solar panels or 30,000m2. Dirt accumulates is a diffusive process, which means that it very location specific.

Comments are closed.