[Nippon Chikudenchi Co., Ltd.] Grid-Scale Energy Storage Facility "NC Shunan-shi Yuno Energy Storage Plant" Begins Receiving Power in Shunan City, Yamaguchi Prefecture
Nippon Chikudenchi Co., Ltd. announced that its grid-scale energy storage facility in Shunan City, Yamaguchi, began operations on April 1, 2026, aimed at stabilizing renewable energy and supporting regional resilience.
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- 📰 Published: April 23, 2026 at 19:00
- 🔍 Collected: April 23, 2026 at 10:31
- 🤖 AI Analyzed: April 24, 2026 at 02:42 (16h 10m after Collected)
Nippon Chikudenchi Co., Ltd. (Headquarters: Chiyoda-ku, Tokyo; President & CEO: Shuichi Urushibara) is pleased to announce that the grid-scale energy storage facility "NC Shunan-shi Yuno Energy Storage Plant," constructed in Shunan City, Yamaguchi Prefecture, began receiving power on April 1, 2026.
This facility absorbs and levels the output fluctuations of renewable energy and is positioned as a regionally decentralized energy hub corresponding to the JEPX (wholesale market), supply and demand adjustment market, and capacity market. It also functions as a disaster prevention base that supports the regional power supply during disasters, thereby contributing to the improvement of regional resilience.
▲ NC Shunan-shi Yuno Energy Storage Plant
[Facility Overview]
Facility Name: NC Shunan-shi Yuno Energy Storage Plant
Location: Shunan City, Yamaguchi Prefecture
Rated Output/Capacity: 1,988kW / 8,146kWh
Battery System: TMEIC (Battery: CATL)
Start of Operation: April 1, 2026
Design and Construction Company: Y-just Co., Ltd.
With the expanding popularization of renewable energy, balancing power supply and demand has become a crucial issue. Storage batteries play a core role in absorbing these fluctuations and supporting stable grid operation.
This project adopts CATL energy storage systems and TMEIC PCS (power conditioning systems). The equipment configuration, which combines high reliability and control performance, realizes stable operation in the supply and demand adjustment market, JEPX (wholesale market), and capacity market.
Construction was carried out by MIRAIT ONE Corporation, implementing design and construction with consideration for local environmental conservation and safety.
[Future Outlook]
Nippon Chikudenchi Co., Ltd. will continue to promote grid-scale energy storage projects nationwide, and by strengthening collaboration with local communities, municipalities, and companies, we will contribute to the realization of a decarbonized society and the improvement of disaster response capabilities.
[Company Overviews]
■ Nippon Chikudenchi Co., Ltd.
Company Name: Nippon Chikudenchi Co., Ltd.
Representative: Shuichi Urushibara, President & CEO
Location: 13th Floor, Kasumigaseki Building, 3-2-5 Kasumigaseki, Chiyoda-ku, Tokyo
Business Description: Development and operation of grid-scale energy storage facilities
URL: https://nipponchikudenchi.co.jp
■ Y-just Co., Ltd.
Company Name: Y-just Co., Ltd.
Representative: Mitsuyoshi Tohnoe, President & CEO
Location: 1-1 Sakaecho, Takasaki City, Gunma Prefecture
Business Description: Contracting of construction, civil engineering, and electrical equipment works; design and management operations; telecommunications operations; real estate transactions; solar power generation system business; wholesale of designated building materials for Yamada Denki stores and renovated stores; store development consulting; maintenance operations for Yamada Denki stores; sales and installation of LED lighting.
URL: https://yjust.jp
■ TMEIC Corporation
Company Name: TMEIC Corporation
Representative: Akira Kawaguchi, President & CEO
Location: 3-1-1 Kyobashi, Chuo-ku, Tokyo (Tokyo Square Garden)
Business Description: Sales, engineering, construction, and service of industrial systems and electrical equipment mainly for manufacturing plants, and development and manufacturing of monitoring and control systems, power electronics equipment, and rotating machinery (large capacity motors, etc.) for the manufacturing industry.
URL: https://www.tmeic.co.jp
This facility absorbs and levels the output fluctuations of renewable energy and is positioned as a regionally decentralized energy hub corresponding to the JEPX (wholesale market), supply and demand adjustment market, and capacity market. It also functions as a disaster prevention base that supports the regional power supply during disasters, thereby contributing to the improvement of regional resilience.
▲ NC Shunan-shi Yuno Energy Storage Plant
[Facility Overview]
Facility Name: NC Shunan-shi Yuno Energy Storage Plant
Location: Shunan City, Yamaguchi Prefecture
Rated Output/Capacity: 1,988kW / 8,146kWh
Battery System: TMEIC (Battery: CATL)
Start of Operation: April 1, 2026
Design and Construction Company: Y-just Co., Ltd.
With the expanding popularization of renewable energy, balancing power supply and demand has become a crucial issue. Storage batteries play a core role in absorbing these fluctuations and supporting stable grid operation.
This project adopts CATL energy storage systems and TMEIC PCS (power conditioning systems). The equipment configuration, which combines high reliability and control performance, realizes stable operation in the supply and demand adjustment market, JEPX (wholesale market), and capacity market.
Construction was carried out by MIRAIT ONE Corporation, implementing design and construction with consideration for local environmental conservation and safety.
[Future Outlook]
Nippon Chikudenchi Co., Ltd. will continue to promote grid-scale energy storage projects nationwide, and by strengthening collaboration with local communities, municipalities, and companies, we will contribute to the realization of a decarbonized society and the improvement of disaster response capabilities.
[Company Overviews]
■ Nippon Chikudenchi Co., Ltd.
Company Name: Nippon Chikudenchi Co., Ltd.
Representative: Shuichi Urushibara, President & CEO
Location: 13th Floor, Kasumigaseki Building, 3-2-5 Kasumigaseki, Chiyoda-ku, Tokyo
Business Description: Development and operation of grid-scale energy storage facilities
URL: https://nipponchikudenchi.co.jp
■ Y-just Co., Ltd.
Company Name: Y-just Co., Ltd.
Representative: Mitsuyoshi Tohnoe, President & CEO
Location: 1-1 Sakaecho, Takasaki City, Gunma Prefecture
Business Description: Contracting of construction, civil engineering, and electrical equipment works; design and management operations; telecommunications operations; real estate transactions; solar power generation system business; wholesale of designated building materials for Yamada Denki stores and renovated stores; store development consulting; maintenance operations for Yamada Denki stores; sales and installation of LED lighting.
URL: https://yjust.jp
■ TMEIC Corporation
Company Name: TMEIC Corporation
Representative: Akira Kawaguchi, President & CEO
Location: 3-1-1 Kyobashi, Chuo-ku, Tokyo (Tokyo Square Garden)
Business Description: Sales, engineering, construction, and service of industrial systems and electrical equipment mainly for manufacturing plants, and development and manufacturing of monitoring and control systems, power electronics equipment, and rotating machinery (large capacity motors, etc.) for the manufacturing industry.
URL: https://www.tmeic.co.jp