EGP, which has emerged as one of the world’s great experimenters with hybrid clean-energy systems, opened its 33MW Stillwater geothermal plant in 2009 in Fallon, western Nevada. Several years later it added a 26MW PV array to the site -- its first solar project in North America.

But the Italy-based company will take things a step further with the addition of the CSP plant, whose heat EGP claims will enhance the geothermal-based generation in addition to contributing its own electricity production.