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 tracked403
BESS power4,473MW
BESS energy16,833MWh
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 · 12 Nov 2026

Open JEPX prices →
System price, daily average29.82JPY/kWh▼ 0.61 vs previous day
Low – high8.17 – 41.99JPY/kWh
Cheapest area20.92JPY/kWhKyushu
Priciest area34.26JPY/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

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Recently updated projects

View registry →
SD Fukuchiyama Battery Storage Facility≈SD京都福知山蓄電所Kansai · Fukuchiyama-shi, KyotoOperating1.97 MW / 8.15 MWhSD Ayabe Battery Storage Facility≈SD京都綾部蓄電所Kansai · Ayabe-shi, KyotoOperating1.96 MW / 8.15 MWhウエスト ニュージーランド村 系統用蓄電所Chugoku · Akitakata-shi, HiroshimaOperating10.8 MW / 34.57 MWh茨城県神栖市 特別高圧蓄電所Tokyo · Kamisu-shi, IbarakiPlanned21 MW / 73 MWh埼玉県秩父郡長瀞町 特別高圧蓄電所Tokyo · Nagatoro-machi, Chichibu-gun, SaitamaPlanned54 MW / 183 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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