DOE-Funded Solar Variability Model in High Demand in Puerto Rico

Solar developers are scrambling to meet Puerto Rico utility company PREPA’s new ramp-rate requirement. Any new utility-scale power plant operator must commit to limit changes in output (“ramps”) to 10% per minute — a tall order for PV, as a single PV panel could fluctuate over 70% per second.

What if solar developers could predict how passing clouds affect fluctuations in power output — and plan their plants accordingly?

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