%0 Journal Article
%T Cost and Emissions Implications of Coupling Wind and Solar Power
%A Seth Blumsack
%A Kelsey Richardson
%J Smart Grid and Renewable Energy
%P 308-315
%@ 2151-4844
%D 2012
%I Scientific Research Publishing
%R 10.4236/sgre.2012.34041
%X We assess the implications on long-run average energy production costs and emissions of CO<sub>2</sub> and some criteria pollutants from coupling wind, solar and natural gas generation sources. We utilize five-minute meteorological data from a US location that has been estimated to have both high-quality wind and solar resources, to simulate production of a coupled generation system that produces a constant amount of electric energy. The natural gas turbine is utilized to provide fill-in energy for the coupled wind/solar system, and is compared to a base case where the gas turbine produces a constant power output. We assess the impacts on variability of coupled wind and solar over multiple time scales, and compare this variability with regional demand in a nearby load center, and find that coupling wind and solar does decrease variability of output. The cost analysis found that wind energy with gas back-up has a lower levelized cost of energy than using gas energy alone, resulting in production savings. Adding solar energy to the coupled system increases levelized cost of energy production; this cost is not made up by any reductions in emissions costs.
%K Wind Energy
%K Solar Energy
%K Air Emissions
%U http://www.scirp.org/journal/PaperInformation.aspx?PaperID=24423