2026-10-06Yahoo!ファイナンス

Keiyo Gas extends decline; enters domestic grid-scale battery storage business

京葉ガス－続落 国内 系統用蓄電池 事業へ参入

Keiyo Gas announced on the 5th that it opened its first domestic grid-scale battery storage station in Isesaki, Gunma Prefecture, with full-scale operation starting October 1, 2026. The move is part of its renewable energy business under its 2025-2027 medium-term management plan, following its June 2025 investment in a US grid battery project. The stock continued to fall, with limited positive impact from the news.

  • operating
  • 群馬県伊勢崎市
  • 京葉ガス

Full account

  • Keiyo Gas (9539) shares continued to decline; price shown 1,302 yen, unchanged (0).
  • On the 5th, the company announced it opened its first domestic grid-scale battery storage station in Isesaki City, Gunma Prefecture, beginning full-scale operation on October 1, 2026.
  • The project is part of renewable-energy-related business under the company's "Medium-Term Management Plan 2025-2027".
  • Purpose: respond to growing power supply-demand balancing needs as renewable energy expands.
  • Follows the investment/participation in a US grid-scale battery project announced in June 2025; now entering the business domestically.
  • Positive impact on the share price was limited.
  • No capacity (MW/MWh) figures given.
  • Article by 齋藤匠, Traders Web, dated 10/5 (Mon) 14:56.
日本語で読む

京葉ガス－続落 国内 系統用蓄電池 事業へ参入

  • 京葉ガス（9539）が続落。現在値1,302円（前日比0）。
  • 同社は5日、群馬県伊勢崎市において同社初となる国内系統用蓄電所を開設し、2026年10月1日より本格稼働を開始したと発表。
  • 「中期経営計画2025-2027」に基づく再生可能エネルギー関連事業の一環。
  • 再エネ導入拡大に伴い高まる電力需給調整ニーズへの対応が目的。
  • 2025年6月に公表した米国の系統用蓄電池プロジェクトへの出資・参画に続き、国内でも系統用蓄電池事業へ参入。
  • 株価への好影響は限定的。
  • 出力・容量の記載なし。
  • 齋藤匠、トレーダーズ・ウェブ、10/5(月) 14:56配信。

Attached to: 伊勢崎市・京葉ガス系統用蓄電所（仮称） →