Abstract
The paper presents a cost comparison of thermal storage power plants (TSPP) with various conventional power plants. TSPP require less fuel and can better fulfill the demand of variable and intermittent residual loads through providing a much higher flexibility with their intrinsic heat storage system, also called Carnot Battery. Due to reduced or completely avoided usage of fossil fuels, TSPP satisfy the goal of reducing greenhouse emissions in the current world. When comparing the LCOE of conventional power plants, such as biomass, coal, gas turbine and combined cycle power plants mentioned in this paper, with TSPP, the electricity cost of TSPP is lower than that of conventional power plants, no matter if they are newly built or obtained from converting existing plants. TSPP represent an effective hedge against the escalation of fossil fuel market prices as well as against rising CO2 cost additions. The comparison indicates that TSPP under current conditions are the most cost-effective way to produce highly flexible power on demand.
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