2026-03-27ブルースカイエナジー株式会社

Three co-located battery storage projects begin operation in Kyushu

九州で併設型蓄電池3案件が稼働開始

Blue Sky Energy has completed construction of battery storage facilities co-located with existing solar plants in Oita and Kagoshima prefectures and has begun operating them in sequence. The three facilities total about 6 MW of solar output and about 25 MWh of battery capacity, and were supported by a METI subsidy programme for storage co-located with renewables. The plants have moved from FIT to FIP. The per-facility details referenced in the release (including the facility in this item's title) are not included in the text.

  • operating
  • 大分県、鹿児島県
  • 25 MWh
  • ブルースカイエナジー株式会社

Full account

  • Blue Sky Energy Co., Ltd. completed construction of battery facilities co-located with existing solar plants in Oita and Kagoshima prefectures and began operation sequentially (release dated 27 March 2026).
  • Adopted under METI's 'Renewable Energy Co-located Storage Battery Introduction Support Project' (subsidises part of costs for FIP-certified batteries co-located with renewables).
  • On start of operation, the plants switched from FIT to FIP.
  • Three facilities combined: solar output about 6 MW, battery capacity about 25 MWh; expected annual generation about 7 million kWh (approx. 2,000 households, per Ministry of the Environment FY2024 household statistics).
  • Per-facility overview is referenced but not included in the text.
  • Background: frequent output curtailment in Kyushu; evening/night shortfalls covered by thermal adjustment.
  • Features: time-shift storing curtailed surplus; smoothing weather-driven fluctuations; linkage with wholesale and balancing markets; FIP market-linked charging (low price) / discharging (high price); AI-based generation and price forecasting; 24-hour remote monitoring.
  • Outlook: aims to develop 100 sites by 2029 (elsewhere: 100+ grid storage sites nationwide by 2029); considering multi-use operation incl. balancing market entry.
  • Company: HQ Nihonbashi, Chuo-ku, Tokyo; representative Miki Uehara; founded October 2012; capital 40 million yen; 24 bases nationwide; grid storage EPC, solar repowering (100 sites, over 150 MW), O&M.
日本語で読む

九州で併設型蓄電池3案件が稼働開始

  • ブルースカイエナジー株式会社は大分県および鹿児島県で既設太陽光発電所に併設する蓄電池設備の建設工事を完了し、順次運転開始（2026年3月27日発表）。
  • 経済産業省「再生可能エネルギー電源併設型蓄電池導入支援事業」の採択を受け実施。
  • 運転開始に伴い売電方式をFIT制度からFIP制度へ移行。
  • 全3施設合計：太陽光発電出力約6MW、蓄電池容量約25MWh、年間想定発電量約700万kWh（一般家庭約2,000世帯相当）。
  • 各施設の個別概要は本文に記載なし。
  • 背景：九州エリアで出力制御が頻発、夕方・夜間は火力で需給調整。
  • 特徴：出力制御時の余剰電力のタイムシフト、出力変動緩和、卸電力市場・需給調整市場との連携、FIPによる市場連動型充放電、AIによる発電量・市場価格予測、24時間遠隔監視。
  • 今後：2029年までに100か所の開発を目指す（系統用蓄電所は全国100か所以上目標）、需給調整市場参入等マルチユース運用も視野。
  • 会社概要：東京都中央区日本橋、代表者上原美樹、2012年10月設立、資本金4000万円、全国24拠点、リパワリング実績全国100か所・150MW超。