Short-, Medium-, and Long-Duration Energy Storage in a 100% Renewable Electricity Grid: A UK Case Study
نویسندگان
چکیده
Energy storage will be required over a wide range of discharge durations in future zero-emission grids, from milliseconds to months. No single technology is well suited for the complete range. Using 9 years UK data, this paper explores how combine different energy technologies minimize total cost electricity (TCoE) 100% renewable-based grid. Hydrogen, compressed air (CAES) and Li-ion batteries are considered short-, medium-, long-duration stores, respectively. This analyzes system configurations find one leading lowest overall cost. Results suggest that need capacity ~66.6 TWh decarbonize its figure considers mix 85% wind + 15% solar-photovoltaics, over-generation. The optimum distribution is: 55.3 hydrogen, 11.1 CAES 168 GWh batteries. More than 60% all emerging comes medium-duration stores. Based on current costs, represents an investment ~£172.6 billion, or approximately 8% country’s GDP. With configuration, TCoE ~75.6 £/MWh attained.
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ژورنال
عنوان ژورنال: Energies
سال: 2021
ISSN: ['1996-1073']
DOI: https://doi.org/10.3390/en14248524