Stirling Energy Systems was a Scottsdale, Arizona-based company which developed equipment for utility-scale renewable energy power plants and distributed electrical generating systems using parabolic dish and stirling engine technology, touted as the highest efficiency solar technology.[1]
In April 2008, Ireland-based NTR purchased a majority stake in Stirling Energy Systems for $100M.[2] As of 8/3/2011 NTR reported they were seeking 3rd party investment in Stirling Energy Systems.[3]
On 29 September 2011 Stirling Energy Systems filed for Chapter 7 bankruptcy, due to falling PV prices caused by subsidized Chinese Photo Voltaic.
In April 2012 the Maricopa Solar plant in Phoenix, Arizona was bought by United Sun Systems (Now TEXEL Energy Storage) in a joint venture with a Chinese/American corporation.[4]