Solar power's biggest ally, the battery energy storage systems (BESS), has arrived in force in 2024. The pairing of batteries with solar photovoltaic (PV) farms is rapidly reshaping how and when solar energy is used, turning daylight-only generation into flexible, round-the-clock.
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The interactive figure below presents results on the total installed ESS cost ranges by technology, year, power capacity (MW), and duration (hr).
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Let's parse the 2023 battery storage landscape: lithium pack LCOS for 4-hour systems fell to $132/MWh, utility-scale BESS capex dropped 22% to $140/kWh, unsubsidized residential storage sits at $300-500/MWh, flow batteries are projected to hit $100/MWh .
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Independent power producer Africa REN has officially commissioned the Walo Storage project in Bokhol, Dagana department, northern Senegal. This marks the first solar PV installation in West Africa to integrate battery storage dedicated to frequency regulation.
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