2026-11-10日経BP

Grid battery station in Shimabara... Makurazaki City storage station begins receiving power; developed jointly by Nihon Chikudenchi and others

枕崎市に蓄電所が受電開始、日本蓄電池など共同開発

Nihon Chikudenchi and Remix Point, which are jointly developing grid-scale storage stations at seven sites nationwide, reported that the NC Makurazaki Sakurayama-Higashi-cho storage station in Kagoshima Prefecture began receiving power on November 4. It is the fourth site in the project to be energized. Three more sites are expected to start receiving power between November 2026 and March 2027.

  • operating (grid connected; power reception started November 4)
  • 鹿児島県枕崎市
  • 2 MW
  • 8.1 MWh
  • 日本蓄電池
  • リミックスポイント
  • CATL
  • TMEIC
  • デジタルグリッド
  • カンドー
  • クラフティア

Full account

  • Developers: Nihon Chikudenchi (Chiyoda-ku, Tokyo) and Remix Point are jointly developing grid-scale storage stations at seven sites nationwide.
  • Makurazaki station: "NC Makurazaki Sakurayama-Higashi-cho storage station" in Makurazaki City, Kagoshima Prefecture; began receiving power on November 4 (article dated 2026/11/09).
  • Rated output 1,988 kW; rated capacity 8,146 kWh.
  • Equipment: batteries by CATL (China); power conditioner (PCS) by TMEIC.
  • Plans to enter three electricity markets; entry into the balancing market is planned for around March 2027.
  • Energisation status: four sites now receiving power: Tamana City (Kumamoto), Sendai City, Kama City (Fukuoka), and Makurazaki City (Kagoshima).
  • Remaining three sites: Wakayama Prefecture Kainan City expected November 2026; Gifu Prefecture Ibigawa Town expected December 2026; Nagano City expected March 2027.
  • Kama City "NC Kuchiharu storage station": began balancing-market operation on October 20; rated output 1,975 kW; rated capacity 8,146 kWh; CATL batteries and TMEIC PCS; aggregator is Digital Grid.
  • Remix Point acquired development land for "Ena Iwamura 3 storage station (tentative name)" in Ena City, Gifu Prefecture, its second company-owned high-voltage grid project in the prefecture; planned construction around April 2027, energisation late July 2027, balancing-market entry around autumn 2027.
  • Remix Point targets 48 high-voltage grid storage stations under development by the fiscal year ending March 2029, of which 25 to be company-owned. With the Ena land, company-owned projects including development stage total 12, a 48% progress rate against the company-owned target.
  • Expected monthly sales per operating station: about 15 million yen.
  • On October 21, Nihon Chikudenchi installed batteries at two grid storage stations under development: NC Izumo City Kunitomi-cho storage station (Shimane Prefecture), designed and constructed by Kando (Shinjuku-ku, Tokyo); NC Minami-Aizu Town Tajima storage station (Fukushima Prefecture), constructed by Craftia.
  • Related article link: storage used as emergency power during disasters in Takayama City (not detailed).
日本語で読む

枕崎市に蓄電所が受電開始、日本蓄電池など共同開発

  • 開発者：日本蓄電池（東京都千代田区）とリミックスポイントが全国7カ所で系統用蓄電所を共同開発。
  • 枕崎市：鹿児島県枕崎市の「NC枕崎市桜山東町蓄電所」が11月4日に受電開始（記事日付2026/11/09）。
  • 定格出力1988kW、定格容量8146kWh。
  • 機器：蓄電池は中国CATL製、パワーコンディショナー（PCS）はTMEIC（ティーマイク）製。
  • 電力3市場への参入に向けた手続きを進める計画。需給調整市場への参入は2027年3月頃を予定。
  • 受電済み4カ所：熊本県玉名市、仙台市、福岡県嘉麻市、鹿児島県枕崎市。
  • 残り3カ所：和歌山県海南市は2026年11月、岐阜県揖斐川町は同年12月、長野市は2027年3月の受電開始を見込む。
  • 嘉麻市「NC口春蓄電所」：10月20日から需給調整市場向けの運用を開始。定格出力1975kW、定格容量8146kWh。CATL製蓄電池とTMEIC製PCSを採用。アグリゲーターはデジタルグリッド。
  • リミックスポイントは岐阜県恵那市の「恵那岩村3蓄電所（仮称）」の開発用地を取得。県内2カ所目の自社保有高圧系統用蓄電所。2027年4月頃着工、同年7月下旬受電開始、同年秋頃に需給調整市場へ参入予定。
  • 目標：2029年3月期までに高圧系統用蓄電所48カ所の開発、うち25カ所を自社保有。恵那市用地取得により自社保有案件（開発段階含む）は合計12カ所、目標に対する進捗率48％。
  • 稼働済み施設1カ所あたりの月間見込売上高は約1500万円を想定。
  • 10月21日、日本蓄電池は開発中の2カ所に蓄電池を設置：島根県出雲市「NC出雲市国富町蓄電所」（カンドー＝東京都新宿区が設計・施工）、福島県南会津町「NC南会津町田島蓄電所」（クラフティアが施工）。
  • 関連記事（高山市の災害時非常用電源での活用）へのリンクあり（詳細なし）。