Japan electricity market data: JEPX spot prices, capacity auction results, supply alerts and market statistics.
Analysis of Japan power futures settlement prices for May 15, 2026 based on TOCOM data. East Area July baseload settled at 21.63 JPY/kWh, with peakload reaching 28.16 JPY/kWh, reflecting a significant summer premium.
According to the latest EGC report, new electricity retailers captured 22.1% market share in December 2025, up 2.0 pp YoY. This article analyzes market structure changes since full liberalization in 2016.
An in-depth analysis of Japan's nine electricity area power mixes and variable cost (marginal cost) data by power source type. Starting from the merit order framework, this article explains how LNG thermal (15.2 yen/kWh) becomes the marginal price-setting source in JEPX spot markets, and compares regional market characteristics: Hokkaido (coal-heavy), Tohoku (41.5% renewables), and Kyushu (4.7% solar curtailment rate).
A comprehensive analysis of EPRX balancing market performance for FY2024 (full year) and FY2025 H1 (April–September). Examines composite product dynamics bundling FCR, S-FRR, and FRR, battery storage's premium pricing, and the impact of the price cap reduction policy.
Kyushu's renewable share hits 38% yet curtailment reaches 168 events/year. Tokyo's spot average halved from ¥20 to ¥10/kWh. In high-renewable regions, imbalance prices carry a 1.5–2× premium over spot. Using nine-region data from FY2022–FY2026, this article analyzes how power mix drives price divergence and the structural links between curtailment, interconnection congestion, and BESS arbitrage opportunities.
Based on OCCTO official data published January 20, 2026, the FY2029 capacity market main auction cleared 166.08 GW at a total contracted value exceeding ¥2.21 trillion. This analysis examines regional price divergence, market segmentation drivers, and the capacity charge allocation structure.
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