Techno-economic analysis of offshore isothermal compressed air energy storage in saline aquifers co-located with wind power
نویسندگان
چکیده
Offshore wind power projects are increasingly attractive in many regions even though capacity is impacted by intermittency as it with other renewable sources. We examine balancing the an Compressed Air Energy Storage (OCAES) system that combines near-isothermal compression and expansion processes via water spray injection air storage saline aquifers. Spray maintains at nearly constant temperatures to improve round-trip efficiency, aquifers abundant near-shore environments suitable depths. This techno-economic analysis estimates cost, value of OCAES, demonstrates context Atlantic coast United States, for a lease near Virginia. The efficiency OCAES projected using thermal fluid process model accounts machinery performance well geophysical subsurface characteristics gradients. Cost based on combining axial gas turbine technology retrofits drilling experience from oil industry. Value electric grid quantified price-taker dispatch optimizes delivered electricity. study analyzed capacities 10 390 MW, our results show conditions considered, 200 MW expected have 77% capital cost $1457/kW. When paired 500 farm, able increase revenue $0.031/kWh, without storage, $0.048/kWh. also 350 168 hours make farm output levelized electricity (LCOE) $0.22/kWh, 81% less than 10-hour lithium-ion battery technology.
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ژورنال
عنوان ژورنال: Applied Energy
سال: 2021
ISSN: ['0306-2619', '1872-9118']
DOI: https://doi.org/10.1016/j.apenergy.2021.117587