Sandstone Solar Energy Project
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The Sandstone Solar Energy Project was an up to 1,600 
megawatt The watt (symbol: W) is the unit of Power (physics), power or radiant flux in the International System of Units, International System of Units (SI), equal to 1 joule per second or 1 kg⋅m2⋅s−3. It is used to quantification (science), ...
(MW) solar thermal power project with 16 gigawatt-hours of energy storage, planned just to the east of Tonopah, about northwest of
Las Vegas Las Vegas (; Spanish for "The Meadows"), often known simply as Vegas, is the 25th-most populous city in the United States, the most populous city in the state of Nevada, and the county seat of Clark County. The city anchors the Las Vegas ...
. The project was about up to eight 200 MW solar towers with integrated molten salt energy storage technology. The project, developed by SolarReserve and owned by Sandstone Solar Energy, LLC. was anticipated to cost about $5 billion. Planned energy output is 5,600
GW·h A kilowatt-hour (unit symbol: kW⋅h or kW h; commonly written as kWh) is a unit of energy: one kilowatt of power for one hour. In terms of SI derived units with special names, it equals 3.6 megajoules (MJ). Kilowatt-hours are a common bil ...
per year. The project includes
heliostat A heliostat (from ''helios'', the Greek word for ''sun'', and ''stat'', as in stationary) is a device that includes a mirror, usually a plane mirror, which turns so as to keep reflecting sunlight toward a predetermined target, compensating ...
s that collect and focus the sun's thermal energy to heat molten salt flowing through a
solar power tower A solar power tower, also known as 'central tower' power plant or 'heliostat' power plant, is a type of solar furnace using a tower to receive focused sunlight. It uses an array of flat, movable mirrors (called heliostats) to focus the sun's ra ...
. The molten salt circulates from the tower to a storage tank, where it is then used to produce steam and generate electricity. Excess thermal energy is stored in the molten salt and can be used to generate power for up to ten hours, including during the evening hours and when direct sunlight is not available. The storage technology also eliminates the need for any backup fossil fuels, such as natural gas. Estimated construction start was in 2022. Each tower was constructed within a 24-month construction cycle, staggered 6 months, expecting about years to complete. In March 2019, the U.S. Bureau of Land Management confirmed that Sandstone Solar Energy has withdrawn its application for a construction and operation right-of-way on federal land for this project. On 15 April 2019, Sandstone Solar Energy filed for withdrawal of the application for a permit to construct the solar plant and requested closure of the relevant docket (No.17-08003). The Commission acknowledged the filing and closed the docket the same day.


See also

*
List of solar thermal power stations This is a list of the largest facilities generating electricity through the use of solar thermal power, specifically concentrated solar power. Operational Under construction Announced Cancelled Decommissioned * Eurelios pi ...
* Renewable energy in the United States * Solar thermal energy


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External links

* {{Solar power in the United States Solar power stations in Nevada