Patent ID: 8327641

Claim:
An electricity generation system, comprising: a solar preheater for preheating compressed discharge air using a first portion of a heated solar fluid to generate heated compressed air; a combustor operatively coupled to the solar preheater to generate hot burned gas by burning a fuel using the heated compressed air: a first turbine operatively coupled to the combustor to generate exhaust gas by expanding the hot burned gas: a heat recovery steam generator coupled to the first turbine, the heat recovery steam generator comprising: a low pressure evaporator that generates low pressure heated fluid by heating a condensed fluid using the heat of the exhaust gas; an intermediate pressure evaporator and an intermediate pressure boiler that: generate intermediate pressure fluid/vapor by heating the low pressure fluid using the exhaust gas and a pump; transfer the intermediate pressure fluid to an auxiliary intermediate pressure boiler/superheater or a solar intermediate pressure evaporator/superheater, or combinations thereof, wherein said solar intermediate pressure evaporator/superheater generates a superheated intermediate pressure solar vapor using a part of a second portion of the heated solar fluid and the intermediate pressure fluid.