## Wednesday, October 19, 2016

### USA, Nevada: Stillwater Hybrid Geothermal Solar Power Plant

This Hybrid Power Plant Combines 3 Clean Energy Sources in One (DOE)

Champagne and strawberries, chocolate and peanut butter, geothermal and solar energy -- some things just go nicely together. Enel Green Power North America’s Stillwater plant, outside the desert town of Fallon, Nevada, came online in 2009 as a conventional geothermal plant and later added solar panels. After adding concentrating solar power in 2016, it became the world’s first triple hybrid renewable energy plant.

Engineers at the U.S. Department of Energy’s Idaho National Laboratory and National Renewable Energy Laboratory are helping analyze the integration of the geothermal plant with the newer additions.

Many renewable energy sources, including geothermal energy, experience fluctuations in power output -- a perhaps surprising fact given that geothermal energy draws upon ever-present heat from deep in the earth. The fluctuations stem from the system’s difficulty discarding heat on hot days.