Jayanta S Kapat
Steady penetration of solar and wind energy into US electric generation has brought significant changes to the industry. This went on at a time when gas remains abundant and cheap. In fact, gas turbines running on gas are very often touted as renewable-enabler as their fast start-up characteristics make them ideal for meeting grid demands when generation from solar and wind energies fall off. the mix of enhanced electric grid and back-up power generation would work nicely, except that CO2 would still be emitted while using the back-up power generation. Of course, which will change when affordable, grid-scale battery storage is accessible? This presentation covers two different power production scenarios, where direct solar electricity generation will be complemented by alternative modes of power generation specified no greenhouse emission gets released to the atmosphere even when fossil fuel is employed to enhance the renewable generation. the primary scenario covers solar thermal power generation hybridized with Super-Critical greenhouse gas (sCO2) power cycle with oxy-combustion of gas. Here, greenhouse gas are going to be naturally captured even when fossil fuel is employed because the heat source, and additionally, water are going to be produced within the oxy-combustion process which will be available for consumption. The second scenario involves solar PV array to be complemented by a Salinity-Gradient-Solar-Pond (SGSP) that acts as a thermal storage to store the alternative energy when available. When sun isn't shining, stored thermal energy is converted to electricity
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