Japanese Electricity Market Data Hub

Useful Links

EEX Japanese Power TOCOM Japanese Power JKM Futures TTF Futures JMA ENSO Report JMA Seasonal Forecast 7 Day Weather Forecast

Downloads

JEPX Spot History CSV Intraday Spot History CSV Demand History CSV Main Cities Temperature CSV

Price Summary

Price Summary
Daily JEPX System 30 Days Daily JEPX 9 Regions 30 Days Spot Over Time System 90 Days Temperature Graph System Price Heatmap Graph System

Daily JEPX System 30 Days

Daily JEPX System 30 Days Full Size

Daily JEPX 9 Regions 30 Days

Daily JEPX 9 Regions 30 Days Full Size

Spot Over Time System 90 Days

Spot Over Time System 90 Days Full Size

Temperature Graph System

Temperature Graph System Full Size

Price Heatmap Graph System

Price Heatmap Graph System Full Size

Regional Market Data

Access detailed half-hourly demand and generation mix archives for each Japanese grid region:

Tokyo (TEPCO) Kansai (KEPCO) Chuubu (Chuden) Kyushu (Kyuden) Tohoku (Tohoku EPCO) Chuugoku (Energia) Shikoku (Yonden) Hokuriku (Rikuden) Hokkaido (Hepco)

JEPX Data

Historical JEPX day-ahead and intraday spot market price data in CSV format.

JEPX DA Spot Data JEPX Intraday Spot Data

Calendar Year JEPX DA Spot files

JEPX DA Spot spot_2026.csv JEPX DA Spot spot_2025.csv JEPX DA Spot spot_2024.csv JEPX DA Spot spot_2023.csv JEPX DA Spot spot_2022.csv JEPX DA Spot spot_2021.csv JEPX DA Spot spot_2020.csv JEPX DA Spot spot_2019.csv JEPX DA Spot spot_2018.csv JEPX DA Spot spot_2017.csv JEPX DA Spot spot_2016.csv JEPX DA Spot spot_2015.csv JEPX DA Spot spot_2014.csv JEPX DA Spot spot_2013.csv JEPX DA Spot spot_2012.csv JEPX DA Spot spot_2011.csv

JEPX Data Inventory: Full historical spot price datasets available for download:

JEPX DA Spot Schema

JP: 受渡日, 時刻コード, 売り入札量(kWh), 買い入札量(kWh), 約定総量(kWh), システムプライス(円/kWh), エリアプライス北海道(円/kWh), エリアプライス東北(円/kWh), エリアプライス東京(円/kWh), エリアプライス中部(円/kWh), エリアプライス北陸(円/kWh), エリアプライス関西(円/kWh), エリアプライス中国(円/kWh), エリアプライス四国(円/kWh), エリアプライス九州(円/kWh), 売りブロック入札総量(kWh), 売りブロック約定総量(kWh), 買いブロック入札総量(kWh), 買いブロック約定総量(kWh)

EN: Date, PeriodID, Sell Bid Volume kWh, Buy Bid Volume kWh, Contracted Total Volume kWh, System Price Yen/kWh, Hokkaido Yen/kWh, Tohoku Yen/kWh, Tokyo Yen/kWh, Chuubu Yen/kWh, Hokuriku Yen/kWh, Kansai Yen/kWh, Chuugoku Yen/kWh, Shikoku Yen/kWh, Kyushu Yen/kWh, Sell Block Bid Total Volume kWh, Sell Block Contracted Total Volume kWh, Buy Block Bid Total Volume kWh, Buy Block Contracted Total Volume kWh
Intraday Schema

JP: 年月日, 時刻コード, 始値(円/kWh), 高値(円/kWh), 安値(円/kWh), 終値(円/kWh), 平均(円/kWh), 約定量合計(kWh), 約定件数

EN: Date, PeriodID, Opening Price Yen/kWh, High Price Yen/kWh, Low Price Yen/kWh, Closing Price Yen/kWh, Average Price Yen/kWh, Contracted Volume Total kWh, Number of Contracts or Trade Count

Disclaimer

The data and resulting information on this site are provided for informational purposes only and are not intended for commercial use. The data sources and hosting resources for this site do not guarantee the accuracy of the data or its availability at all times.

Keywords: Japan Electricity, Japanese Electricity, Japan Power, Japanese Power, JEPX, Japan Electricity Power Exchange, Japanese Power Demand, Japanese Electricity Demand

Data sources: Spot Price from JEPX, Demand data from various regional companies, and weather data from JMA.