JAPAN ELECTRICITY MARKET INTELLIGENCE
From JEPX spot prices to regulatory frameworks — the most authoritative market insights for energy trading professionals.
Latest Articles
A comprehensive guide to the JEPX trading system: types of market participants and registration requirements, supply-demand curve intersection for price clearing, multi-price bidding, block bids, stripe bids, and same-value obligations.
Recent Posts
A comprehensive guide to the JEPX trading system: types of market participants and registration requirements, supply-demand curve intersection for price clearing, multi-price bidding, block bids, stripe bids, and same-value obligations.
Japan's Long-Term Decarbonization Power Source Auction (LTDA) is a 20-year capacity CfD scheme designed to drive decarbonization in the power sector. This guide covers the system architecture, CfD settlement mechanics, the three-tier market revenue clawback, and complete results from Round 1 (FY2023) and Round 2 (FY2024).
Japan's capacity market (容量メカニズム) is the core mechanism ensuring long-term power system reliability. This guide covers the capacity auction mechanism, provider qualification requirements, and how capacity fees are calculated and ultimately reflected in electricity bills.
From distributed resource aggregation to OCCTO's balancing market, this deep-dive covers how Japan's demand response (DR) system works, the business model of VPP aggregators, and how retail electricity suppliers can participate in the DR market for profit.
A comprehensive guide to Japan's EPRX balancing market: five product tiers, ΔkW bidding and clearing mechanics, composite market design, and the sweeping 2026 reforms including day-ahead transition, procurement volume cuts, and price cap reductions — with implications for battery storage operators.
Japan's electricity futures market, built on TOCOM and JEPX, gives power retailers tools for long-term price locking and risk management. This deep-dive covers contract specifications, contango/backwardation dynamics, three hedging strategies, and how to manage spot price volatility through the futures market.
When OCCTO issues a supply-demand tightening alert due to falling reserve margins, retail electricity providers must respond immediately. This article covers alert level assessment, emergency DR activation procedures, post-event reporting requirements, and building systematic emergency response mechanisms.
The Japan Electric Power Exchange for Balancing (EPRX) is the core infrastructure supporting stable grid operation in Japan. Based on the latest official guidebook revised in April 2026, this article provides a thorough analysis of ancillary service product design (primary through tertiary), ΔkW trading logic, battery storage bidding, and participation pathways for retailers and aggregators.
With the large-scale integration of solar and wind power, output curtailment has become a core challenge in Japan's power system management. This article analyzes curtailment trigger conditions, compensation calculation methods, differences under FIT/FIP schemes, and practical response strategies for power generators.
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