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    1. Japan's Largest Solar Plant Regrets Small Storage

      Japan's Largest Solar Plant Regrets Small Storage
      At the nation's largest photovoltaic power plant in Sakai, Kansai Electric Power introduced an energy storage facility accommodating 48 nickel hydride batteries near KEPCO's substation … At Sakai, up to 10,000 kilowatts of electricity is generated during the current trial run ahead of the full operation starting in October. On cloudy and rainy days, however, the output drops to around 5,000 kilowatts and 2,000 kilowatts, respectively. To make up for the gap and achieve stable supply, KEPCO plans to release electricity accumulated in the energy storage facility on sunny days. Since the utility did not adopt highly-efficient lithium-ion batteries at the energy storage facility for financial reasons, there is a limit to the amount of electricity it can cover on bad weather days. Despite being the nation's largest photovoltaic power plant, its output is roughly one-hundredth of that of a nuclear reactor.
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      Mentions: Japan
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