Hokkaido EPCO-ARC JV Harebare launches off-site PPA with Ralse, plans 6.3MW by 2027

FEATURED NEWS

OCCTO awards 47 projects totaling 114.5MWAC in FY2025’s second solar auction, oversubscription persists

Osaka Gas, Enewill, SMFL Mirai Partners commission 50MW Wakayama Gobo Biomass Power Plant

Latest

Hokkaido EPCO-ARC JV Harebare launches off-site PPA with Ralse, plans 6.3MW by 2027
Mitsubishi Logistics to invest over 40B yen in grid-scale BESS, build 7 facilities by FY2030: Nikkei
SPARK
OCCTO awards 47 projects totaling 114.5MWAC in FY2025’s second solar auction, oversubscription persists
Leo Corporation to enter grid-scale BESS with 11 high-voltage assets, eyes 2026 COD for first: Solar Journal
SPARK
OCCTO launches FY2026/FY2027 backup power plant auction, targets 2GW of thermal capacity
SPARK
Osaka Gas, Enewill, SMFL Mirai Partners commission 50MW Wakayama Gobo Biomass Power Plant
Senko to retrofit 1.5MW FIT solar plant in Kagoshima Prefecture with BESS, switch to FIP in early 2026
Enechain to enable day-ahead and intraday trading on its platform in 2026 as JEPX plans to phase out GUI
SPARK
METI to streamline FIT-to-FIP conversions with storage co-location from September 2025
SPARK
Kyuden Mirai Energy signs intra-group off-site PPA using 3.7MW rooftop solar portfolio, eyes Dec. 2025 launch
Osaka Gas commissions first grid-scale BESS with partners, targets 1GW including co-located by FY2030
EPRX July 2025 membership updates: 10 companies join, total tops 100
Daigas G&P Solution cancels 34.4MW Tomato-Atsuma onshore wind project citing rising costs
Vena expands Asia-Pacific portfolio to 9.7GW including 2.4GW in Japan, plans further growth
SPARK
Hulic bids for 20% stake in Canadian Solar Infrastructure Fund to expand renewables business

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Wind
Hydro, biomass & geothermal
Battery
storage
Thermal &
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regulation

Roundups

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Power business licensees

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JEPX trading participants

Monthly tracker of changes in wholesale power and non-fossil certificate trading participants.

Balancing market trading participants

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RE100, RE Action & other initiatives

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Environmental impact assessment

Weekly tracker of projects' progress through the environmental impact assessment process.

Corporate PPAs

Monthly tracker of corporate PPAs announced in Japan.

FIT/FIP project certifications

Monthly tracker of changes in FIT/FIP project certifications including new certifications, etc.

Nuclear power plants

Monthly tracker of developments related to Japan's nuclear power plants.

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Solar

Hokkaido EPCO-ARC JV Harebare launches off-site PPA with Ralse, plans 6.3MW by 2027
OCCTO awards 47 projects totaling 114.5MWAC in FY2025’s second solar auction, oversubscription persists
Senko to retrofit 1.5MW FIT solar plant in Kagoshima Prefecture with BESS, switch to FIP in early 2026
METI to streamline FIT-to-FIP conversions with storage co-location from September 2025
SPARK
Kyuden Mirai Energy signs intra-group off-site PPA using 3.7MW rooftop solar portfolio, eyes Dec. 2025 launch
Vena expands Asia-Pacific portfolio to 9.7GW including 2.4GW in Japan, plans further growth
SPARK
Hulic bids for 20% stake in Canadian Solar Infrastructure Fund to expand renewables business
MBK begins 2.5MWDC solar portfolio development for Haitai Solar unit, targets November 2025 RTB handover
SPARK
Sharing Energy raises 1.9B yen debt from 77 Bank, Dai-ichi Life for residential rooftop solar, total hits 23.6B yen
SPARK
Canadian Solar commissions 2MWAC Nagano Omachi Solar Power Plant, begins supply to retailers via PPA

Wind

Daigas G&P Solution cancels 34.4MW Tomato-Atsuma onshore wind project citing rising costs
Vena expands Asia-Pacific portfolio to 9.7GW including 2.4GW in Japan, plans further growth
SPARK
Weekly EIA update (August 19, 2025): one projects receives METI feedback, two projects change owners
SPARK
Weekly EIA update (August 12, 2025): three projects receive MoE, one METI feedback
SPARK
Nakamoriyama Wind Power completes EIA for 25.2MW onshore project in Fukushima, eyes Dec. 2028 COD
Weekly EIA update (August 5, 2025): one project begins process, two receive METI feedback
SPARK
JERA, bp complete offshore wind merger ahead of schedule, launch JERA Nex bp Japan
Tohoku EPCO launches hybrid solar-wind PPA with AGC Electronics, targets 18.5GWh/year
METI, MLIT designate Matsumae and Hiyama as offshore wind Promotion Zones in preparation for Round 4
SPARK
Nozomi Energy submits draft EIA for 56MW onshore wind project in Kumamoto, eyes December 2028 COD

Hydro, biomass & geothermal

Osaka Gas, Enewill, SMFL Mirai Partners commission 50MW Wakayama Gobo Biomass Power Plant
Chubu EPCO, partners commission 52.7MW biomass plant in Hiroshima, monetize output via VPPAs
Renewable Japan completes first self-developed hydro plant, targets September 2025 COD
Weekly EIA update (July 22, 2025): two projects submit draft assessments, multiple receive METI feedback
SPARK
Renova-led 75MW Omaezaki Biomass Plant shut down over boiler fault, mid-Sep. 2025 resumption planned
SPARK
Osaka Gas unit commissions 75MW Sodegaura Biomass Power Plant in Chiba Prefecture
Hokuriku EPCO completes Hakusan hydro power plant repowering, expects 1GWh annual generation boost
SPARK
Takuma secures EPC contract for Clean Wood Energy’s 2MW biomass power plant in Aomori Prefecture
SPARK
Japan’s installed hydroelectric capacity to grow 200MW to 50.5GW by FY2028, remain flat through FY2030: Yano
SPARK
PATH obtains real estate license, plans to focus on grid-scale BESS and woody biomass project sites
SPARK

Battery storage

Mitsubishi Logistics to invest over 40B yen in grid-scale BESS, build 7 facilities by FY2030: Nikkei
SPARK
Leo Corporation to enter grid-scale BESS with 11 high-voltage assets, eyes 2026 COD for first: Solar Journal
SPARK
Osaka Gas commissions first grid-scale BESS with partners, targets 1GW including co-located by FY2030
Daiwa House breaks ground on first grid-scale BESS, 1.9MW/9.8MWh Fukuoka project eyeing July 2026 COD
Sinanen commissions first grid-scale BESS, 1MW/5.3MWh facility in Chiba Prefecture
Espoir begins fundraising for grid-scale BESS in Okayama via Yamawake Estate’s crowdfunding platform
SPARK
Nippon Chikudenchi, Kyudenko partner on Kyushu grid-scale BESS development
Sanei Sangyo to develop 2MW/8MWh grid-scale BESS in Kumamoto, eyes spring 2026 COD
Nippon Chikudenchi plans October 2025 COD for first Saga Prefecture BESS, developing four more: Saga Shimbun
SPARK
Daihen to procure 300MWh of CATL batteries for grid-scale BESS under FY2025 deal, targets 1GWh by FY2027

Thermal & nuclear

Tohoku EPCO Higashidori Unit 1 safety upgrades completion target disclosure to March 2027
SPARK
Weekly EIA update (August 19, 2025): one projects receives METI feedback, two projects change owners
SPARK
Kansai EPCO restarts Oi Nuclear Power Plant Unit 3, targets Sep. 2025 return to full-scale commercial operation
SPARK
Shizuoka Gas & Power to expand Fuji Power Plant with two engines totaling 15.6MW by FY2027
Hokkaido EPCO’s Tomari 3 approved under new rules, moves closer to targeted 2027 restart
Weekly EIA update (July 29, 2025): one project submits methodology, one draft EIA, multiple receive feedback
SPARK
Kyushu EPCO shuts down Genkai Nuclear Power Plant Unit 4 for scheduled maintenance until late October 2025
SPARK
Kansai EPCO to relaunch Mihama 1 replacement surveys, first to advance new nuclear project post-Fukushima
SPARK
Weekly EIA update (July 22, 2025): two projects submit draft assessments, multiple receive METI feedback
SPARK
Kansai EPCO submits draft EIA for LTDA-backed 1.86GW Nanko Power Station repowering project

Power system

Japan to hit lower end of 7th Basic Energy Plan renewables target, solar market to grow in 2030s: Fuji Keizai
SPARK
Japan Jan–June 2025 renewable curtailment hits H1 record, sets fiscal Q1 highs in four areas
TEPCO starts extra high-voltage substation site search to meet future data center load
SPARK
Kansai EPCO audits 14,942 grid connection consultation responses, finds capacity understatements in 37%
Chubu TSO area sees first grid curtailment due to congestion, Japan’s second
SPARK
Shikoku day-ahead price stuck at 0.01 yen/kWh as forest fire forces Chugoku-Shikoku interconnector shutdown
SPARK
Kyushu EPCO finds grid capacity understatements and other errors in 2,100+ preliminary consultations
Preliminary grid connection consultations triple in Q4 2024 amid BESS boom, Tokyo TSO area jumps fivefold
EPCO consortium sole eligible bidder for 2GW Hokkaido-Honshu link, OCCTO says
GE Vernova and Stonepeak eye investing in 2GW Hokkaido-Honshu interconnector project, Nikkei reports

Partnerships & transactions

Hulic bids for 20% stake in Canadian Solar Infrastructure Fund to expand renewables business
Bain Capital to take Rezil private less than 2 years after IPO, founder and Kansai EPCO to retain stakes
JERA, bp complete offshore wind merger ahead of schedule, launch JERA Nex bp Japan
J-POWER, Hitachi sign MoU to co-develop AI data centers amid growing “watt-bit” collaboration
SPARK
TBS Holdings forms 95:5 JV with UPDATER to develop renewables, source power from third-parties
Erex to invest in Global Engineering, partner on power retail and renewable development
Kaihan targets 130MW of solar, BESS, wind build-to-sell projects, plans EPC and funding tie up with CTIEC
Ryohin Keikaku to form 80:20 JV with JERA, invest 2.1B yen in first year to develop solar projects
Green Energy & Company secures 1.2B yen for BESS projects, aggregation system development
GE Vernova signs MoUs with Eurus and Mitsubishi Electric, launches focus group with METI

Markets & trading

OCCTO awards 47 projects totaling 114.5MWAC in FY2025’s second solar auction, oversubscription persists
OCCTO launches FY2026/FY2027 backup power plant auction, targets 2GW of thermal capacity
SPARK
Enechain to enable day-ahead and intraday trading on its platform in 2026 as JEPX plans to phase out GUI
SPARK
EPRX July 2025 membership updates: 10 companies join, total tops 100
JEPX July 2025 membership updates: power trading membership grows by 2, NFC by 27 members
PRO
EEX to launch fiscal year Japan power futures in October 2025
TOCOM to halve power futures execution, clearing costs between Sep. 2025 and March 2026 to boost liquidity
SPARK
TOCOM to launch Chubu power futures in spring 2026 amid growing needs in Japan’s third largest TSO area
Gunvor starts trading Japan power futures, eyes physical market entry: Bloomberg
SPARK
Okinawa Cellular to enter power retail, may make Okinawa first area to lift regulated tariff: Denki Shimbun
SPARK

Policy & regulation

METI to streamline FIT-to-FIP conversions with storage co-location from September 2025
SPARK
METI power licenses and registrations: July 2025 retailer, TSO/DSO, generator, and aggregator changes
PRO
METI, MLIT designate Matsumae and Hiyama as offshore wind Promotion Zones in preparation for Round 4
SPARK
METI considers requiring power retailers to secure kWh in advance to supplement capacity obligation
SPARK
METI power licenses and registrations: June 2025 retailer, TSO/DSO, generator, and aggregator changes
PRO
Hachijojima becomes Japan’s most remote offshore wind zone as METI, MLIT designate Izu Islands sites
SPARK
Kushiro drafts solar ordinance, seeks to regulate 10kW+ development from 2026: Nikkei
SPARK
METI, MLIT issue draft Matsumae, Hiyama offshore wind Promotion Zone designations ahead of next auction
Japan revises environmental impact assessment law, eases rules for repowering projects
SPARK
METI power licenses and registrations: May 2025 retailer, TSO/DSO, generator, and aggregator changes
PRO

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