3 Co-located Battery Storage Projects Begin Operation in Kyushu

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Blue Sky Energy Launches 3 Co-located Solar Power and Battery Storage Projects in Kyushu.

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Blue Sky Energy Launches 3 Co-located Solar Power and Battery Storage Projects in Kyushu.

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Source: https://prtimes.jp/main/html/rd/p/000000009.000175281.html | Date: Date unavailable

■Overview Blue Sky Energy Co., Ltd. has completed the construction of battery storage facilities co-located with existing solar power plants in Oita Prefecture and Kagoshima Prefecture, and has sequentially commenced their operation. This project was implemented after being selected for the Ministry of Economy, Trade and Industry's "Support Program for Introducing Battery Storage Co-located with Renewable Energy Power Sources" *1. With the start of operation, the electricity sales method for the target power plants has been transitioned from the FIT scheme *2 to the FIP scheme *3. ■Background and Purpose With the expansion of renewable energy introduction, "output curtailment" *4, which suppresses the output of solar power generation and other sources during times when supply exceeds electricity demand, is frequently occurring, especially in the Kyushu area. Conversely, in the evening and night when solar power output decreases, there is insufficient electricity supply from renewable energy, and the supply-demand balance is maintained through output adjustments from thermal power plants. By co-locating battery storage with solar power plants, it becomes possible to store surplus electricity during output curtailment and discharge it during times when electricity is needed, thereby simultaneously achieving effective utilization of renewable energy and stabilization of the power grid. ■Project Overview The total solar power output of all three facilities that have commenced operation is approximately 6 MW, and the total battery storage capacity is approximately 25 MWh. The estimated annual power generation is approximately 7 million kWh (equivalent to about 2,000 average households *5). The overview of each facility is as follows: ■Features of This Project 1. Avoiding Output Curtailment and Maximizing Renewable Energy Utilization By charging surplus electricity, which would otherwise be unused due to output curtailment, into battery storage and discharging it during p

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