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Stillwater Triple Hybrid Plant, USA

In operation

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About the plant

The first renewable energy plant of its kind

Stillwater is a center of innovation excellence. It is a triple hybrid plant located in Churchill County, Nevada, about 60 miles from Reno, NV. It consists of a 33 MW geothermal plant, a 26 MWdc photovoltaic solar plant, a 27 MWdc photovoltaic solar plant, and a 2 MW solar thermal plant. It is the first plant in the world to combine the continuous generating capacity of medium enthalpy, binary cycle geothermal power with solar photovoltaic and solar thermal. The Stillwater hybrid facility is an award-winning power plant that paves the way for hybrid solutions at other sites around the world.



Hybrid - Geothermal, solar PV and solar thermal






33 MW Geothermal 
+ 26 MWdc PV solar 
+ 27 MWdc PV solar 2
+ 2 MW solar thermal


Energy production

241,000 MWh annually 


CO2 emissions avoided

97,000  tons annually 


Electricity equivalent

17,000+ US households annually 



Our Corporate Partner

Enel Green Power has partnered with Wynn Las Vegas, a luxury resort and casino operator on the world-famous Las Vegas Strip. The partnership was made possible through a Power Purchase Agreement (PPA) for 27MWdc of the solar facility at Stillwater. The energy produced at the solar facility meets up to 75% of Wynn Las Vegas’ current peak power requirements, which is the largest percentage of renewable energy used by any resort in Las Vegas. 

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Community Impact

Enel Green Power is committed to creating long-term shared value for its host communities and has forged strong partnerships in Nevada. It is the largest single entity tax contributor in the county. During the Covid-19 pandemic, Enel has supported community needs such as Meals on Wheels for seniors.


Work progress status

Status of construction phase

Enel Green Power is committed to both the “sustainable worksite” model and the Creating Shared Value model (CSV). When it builds projects, it monitors sustainability performance for energy, waste and water management, and the economic impact on the local community. 

  • Jobs >200

    Jobs >200 Construction jobs 

  • Investment 400

    Investment 400 Million dollars in local investment


Community and landowners inquiries

Michael Mayhugh, Site Manager

Media inquiries


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