Japan Energy Market Intelligence

Data on Japan's power and infrastructure markets

Grid-scale battery storage projects, half-hourly JEPX prices by area, and every renewable facility certified under FIT and FIP. Each dataset links back to its source. Data centres, PPAs and simulation tools are being added.

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BESS projects tracked396
BESS power4,257MW
BESS energy16,054MWh
FIT / FIP facilities389,736
FIT / FIP certified capacity109,241MW
Last updated11 Nov2026
Coverage

Datasets and tools

LiveBattery storage系統用蓄電所

Grid-scale battery projects with developers, grid area, capacity, COD and sources.

In developmentData centresデータセンター

Data centre projects in Japan, with location, capacity and power supply.

LiveJEPX power markets日本卸電力取引所

Spot, intraday, FIP reference and imbalance prices from the Japan Electric Power Exchange, by area.

LiveRegional supplyエリア需給実績

Half-hour demand and generation mix for Japan’s nine mainland grid areas.

LiveGeneration outagesHJKS

Planned and forced generator outages, deratings, expected return dates and update history.

LiveBalancing marketEPRX

Preliminary and final balancing-market results for all seven products, by metric and grid area.

In developmentPPA & tolling電力購入契約・トーリング

Offtake agreements for storage and renewables in Japan: PPAs, tolling and capacity contracts, with counterparties, terms and sources.

LiveFIP / FIT固定価格買取・フィードインプレミアム

Renewable facilities certified under FIT/FIP, plus OCCTO auction winners, prices and awarded capacity.

LiveBESS simulation蓄電所シミュレーション

Model battery revenue and dispatch against market prices.

Power prices

JEPX day-ahead · 11 Nov 2026

Open JEPX prices →
System price, daily average30.43JPY/kWh▼ 0.40 vs previous day
Low – high5.00 – 43.13JPY/kWh
Cheapest area19.30JPY/kWhKyushu
Priciest area35.48JPY/kWhTokyo
System price by half-hour00:0012:0024:00
Renewables

FIT / FIP certified facilities

Open facilities register →

389,736 facilities and 109,241 MW certified under the FIT and FIP schemes, from METI's public register, snapshot of 2026-09-30. METI publishes a new snapshot about once a month; we check for it every week.

By technology

  • Solar58,306 MW383,316 facilities
  • Wind20,449 MW3,619 facilities
  • Biomass15,018 MW1,172 facilities
  • Other12,385 MW15 facilities
  • Hydro2,872 MW1,511 facilities
  • Geothermal211 MW103 facilities

Certified capacity by year

MW by year of first certification, facilities still listed.
’12’14’16’18’20’22’24’26

Source: METI 事業計画認定情報 公表用ウェブサイト (fit-portal.go.jp). The register does not say whether a facility is under FIT or FIP.

News

Latest news

All news →
  • 2026-11-10Infoseek

    Operation of Grid-Scale Battery Storage Facility No. 2 Begins

    Glome Holdings announced that its grid-scale battery storage facility No. 2 (GM Nishikata-machi Kanai 2465 Storage, Tochigi City, Tochigi Prefecture), contracted by its consolidated subsidiary Fukuyama Medical Instruments, completed bidding into the 一時調整力 market via an aggregator on November 3, 2026 and began operation on November 4, 2026. Facility No. 1 in Toyooka, Hyogo is undergoing test operation with the aim of entering the primary adjustment capacity market within FY2026.

    • operating
    • 栃木県栃木市
    • グローム・ホールディングス株式会社
    • 福山医療器株式会社
    Read the full story →
  • 2026-11-10Infoseek

    Operations begin at grid battery storage facility No. 2

    Grome Holdings (TSE Growth, code 8938) announced that its consolidated subsidiary Fukuyama Iryoki has started operating the No. 2 grid-scale battery storage facility (GM Nishikata Kanai 2465 storage station) in Tochigi City, Tochigi Prefecture. An aggregator completed bidding into the temporary adjustment capacity market on November 3, 2026, and operation began November 4, 2026. The company says the impact on its FY ending March 2027 results is still being examined.

    • operating
    • 栃木県栃木市西方町金井
    • グローム・ホールディングス株式会社
    • 福山医療器株式会社
    Read the full story →
  • 2026-11-10ライブドアニュース - livedoor

    ADWG Firm on Completion of ADW Miyazaki Nichinan City Storage Plant, Third Grid-Scale Storage Site in Operation

    AD Works Group (2982.T) reported that its subsidiary AD Works (ADW) completed and took delivery of the grid-scale storage plant "ADW Miyazaki Nichinan City Storage Plant" in Nichinan, Miyazaki Prefecture, which the market viewed positively. ADW will have three operating grid-scale storage sites once it starts operation. The plant has completed grid interconnection and trial operation and is scheduled to begin operating in the wholesale electricity market promptly, with entry into the demand-supply adjustment market expected around February 2027.

    • 竣工・引き渡し済み、本連系・試運転完了、卸電力市場での運用開始予定
    • 宮崎県日南市
    • ＡＤワークスグループ
    • エー・ディー・ワークス（ＡＤＷ）
    Read the full story →
    Attached to:ADW宮崎日南市蓄電所 →

Recently updated projects

View registry →
SP Otsu Battery Storage Facility≈SP滋賀大津蓄電所Kansai · Otsu-shi, ShigaConstruction45 MW / 180 MWhTeshikaga Battery Storage Facility≈弟子屈蓄電所Hokkaido · Teshikaga-cho, Kawakami-gun, HokkaidoOperating2 MW / 8 MWh日進LRD蓄電所Region unassigned · Fujinomiya-shi, ShizuokaConstruction2 MW / 8 MWh長野5号蓄電所Chubu · Saku-shi, NaganoConstruction2 MW / 8 MWhBattery Station Isahayaでんきの駅諫早Kyushu · Isahaya-shi, NagasakiConstruction16 MW / 70 MWh
Membership

Full access for members

Sign in to see the full battery storage registry with every participant, the FIT / FIP facility register and JEPX price history, with the source behind each data point.

  • Full battery storage registry and project pages
  • Company and SPC records across projects
  • The full FIT / FIP facility register, with parcels and operators
  • JEPX price history since 2005, the price explorer and CSV downloads
  • BESS simulation over any period up to a year, in every area
  • Source articles for every data point
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