World Library  
Flag as Inappropriate
Email this Article

Crescent Dunes Solar Energy Project


Crescent Dunes Solar Energy Project

Crescent Dunes Solar Energy Project
Crescent Dunes Solar Energy Project is located in Nevada
Crescent Dunes Solar Energy Project
Location of Crescent Dunes Solar Energy Project
Country United States
Location Tonopah, Nye County, Nevada
Status Under construction
Construction began 2011
Commission date May 2014 (estimate)
Construction cost about $0.9 billion
Owner(s) Tonopah Solar Energy, LLC (SolarReserve, LLC)
Solar farm
Type CSP
CSP technology Solar power tower
Heliostats 17,500 × 62.4 m² (1.1 km²)
Site area 1,600 acres (647 ha)
Power generation
Make and model Alstom
Nameplate capacity 125 MW[1]
Capacity factor 52%
Annual generation about 500 GW·h

The Crescent Dunes Solar Energy Project, is a 110 megawatt (MW) solar thermal power project under construction near Tonopah, about 190 miles (310 km) northwest of Las Vegas.[2]

Completed site as seen from a commercial airliner.
The solar tower under construction as seen from a commercial airliner. The eponymous Crescent Dunes are at lower right.
The project is being developed by SolarReserve through its subsidiary, Tonopah Solar Energy.[3]

The project is anticipated to cost less than $1 billion.[4]

The project includes 17,500 heliostat mirrors that collect and focus the sun's thermal energy to heat molten salt flowing through an approximately 540-foot (160 m) tall solar power tower. 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.[2]

Under a power purchase agreement (PPA) between SolarReserve and NV Energy, all power generated by the Crescent Dunes project in the next 25 years will be sold to Nevada Power Company for $0.135 per kilowatt-hour.[4] In late September, 2011, Tonopah received a $737 million loan guarantee from the U.S. Department of Energy (DOE).[2]

Ground was broken on the project September 1, 2011.[5] Construction terminated at the end of 2013, followed by several months of testing the plant systems. Melting about 70,000,000 pounds (32,000,000 kg) of salt takes two months. Once melted, the salt stays melted for the life of the plant and gets cycled through the receiver for reheating.[6] Commercial operation is expected to begin in summer 2014.[7]


  1. ^ Alstom selected for a steam turbine and a generator order for a Nevada thermosolar plant
  2. ^ a b c "Energy Department Finalizes $737 Million Loan Guarantee to Tonopah Solar Energy for Nevada Project" (Press release). Loan Programs Office (LPO),  
  3. ^ "PROJECT SUMMARY". Tonopah Solar Energy, LLC. Retrieved 29 September 2011. 
  4. ^ a b Wesoff, Eric (September 29, 2011). "DOE Races Against the Clock: Two Solar Loans Closed, Seven More to Go". Greentech Media. Retrieved 29 September 2011. 
  5. ^ Tetreault, Steve (September 28, 2011). "Nevada solar project to get $737 million federal loan guarantee".  
  6. ^ Hashem, Heba (April 4, 2014). "No drama as SolarReserve commissions world’s largest CSP tower with storage". CSP Today Business Intelligence (FC Business Intelligence Limited). Retrieved 6 May 2014. 
  7. ^ Illia, Tony (January 23, 2012). "Salty Solution Generates Solar Power During Day and Night". ENR Southwest (The McGraw-Hill Companies). Retrieved 9 February 2012. 

External links

  • "Crescent Dunes Solar Energy Project". SolarReserve, LLC. Retrieved 29 September 2011. 
  • "Crescent Dunes Solar Energy Project". Concentrating Solar Power Projects.  
  • "SolarReserve, LLC (Crescent Dunes)". Projects. LPO, DOE. Retrieved 16 September 2014. 
  • "American Recovery and Reinvestment Act (ARRA) Loans - Award Summary: Tonopah Solar Energy, LLC". 21 September 2011. Retrieved 2 July 2014. 
This article was sourced from Creative Commons Attribution-ShareAlike License; additional terms may apply. World Heritage Encyclopedia content is assembled from numerous content providers, Open Access Publishing, and in compliance with The Fair Access to Science and Technology Research Act (FASTR), Wikimedia Foundation, Inc., Public Library of Science, The Encyclopedia of Life, Open Book Publishers (OBP), PubMed, U.S. National Library of Medicine, National Center for Biotechnology Information, U.S. National Library of Medicine, National Institutes of Health (NIH), U.S. Department of Health & Human Services, and, which sources content from all federal, state, local, tribal, and territorial government publication portals (.gov, .mil, .edu). Funding for and content contributors is made possible from the U.S. Congress, E-Government Act of 2002.
Crowd sourced content that is contributed to World Heritage Encyclopedia is peer reviewed and edited by our editorial staff to ensure quality scholarly research articles.
By using this site, you agree to the Terms of Use and Privacy Policy. World Heritage Encyclopedia™ is a registered trademark of the World Public Library Association, a non-profit organization.

Copyright © World Library Foundation. All rights reserved. eBooks from Project Gutenberg are sponsored by the World Library Foundation,
a 501c(4) Member's Support Non-Profit Organization, and is NOT affiliated with any governmental agency or department.