Abstract
Electric energy storage is currently the primary solution for addressing the intermittency and fluctuation of renewable energy sources. Traditional energy storage methods often struggle to simultaneously meet the demands of long storage duration, large capacity, high efficiency, and low cost. In this study, we present and verify the feasibility of a new energy storage method that utilizes hydraulic fracturing technology to store electrical energy in artificial fractures. Our study analyzed factors that impact energy storage capacity and efficiency, which provides a theoretical basis for optimizing hydraulic fracturing design for energy storage. This study also shows a promising direction for transforming depleted shale oil and gas wells into energy storage wells.
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