Eastern Renewable Generation Integration Study

The National Renewable Energy Laboratory (NREL) convened the Eastern Renewable Generation Integration Study—or ERGIS—a high-performance computing effort for understanding impacts of higher renewable penetrations. NREL researchers developed a solution that broke simulations into 73 intervals and overlapped the first two days between each time period. This allowed researchers to capture sufficient information to establish operational history and made it possible to run simulations in parallel on separate nodes while retaining accuracy. Using this approach reduced the solve-time from 500 days to only 19 days.