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Introduction<\/strong><\/p>\n The Japan power market<\/a> is expected to reach\u00a0328.33\u202fgigawatts\u00a0of installed capacity in\u00a02025, up from approximately\u00a0324.16\u202fGW\u00a0in\u00a02024, according to recent estimates from Mordor Intelligence. Forecasts show a steady compound annual growth rate (CAGR) of about\u00a01.27%\u00a0between\u00a02025 and 2030, with capacity projected to climb to\u00a0349.71\u202fGW\u00a0by\u00a02030.\u00a0While growth is moderate, this continued expansion reflects underlying changes in how Japan sources, trades, and plans its electricity supply.<\/p>\n Get More Insights on Japan Power Market: https:\/\/www.mordorintelligence.com\/industry-reports\/japan-power-market?utm_source=emailwire<\/a><\/p>\n Key Trends<\/strong><\/p>\n Read the full report and access market snapshots that include both global views and Japan-specific analysis: https:\/\/www.mordorintelligence.com\/ja\/industry-reports\/japan-power-market?utm_source=emailwire<\/a> <\/em><\/strong><\/p>\n Market Segmentation<\/strong><\/p>\n The Mordor Intelligence report outlines Japan\u2019s power market by:<\/p>\n Segmentation summary<\/strong>:<\/p>\n Key Players<\/strong><\/p>\n Japan\u2019s power sector features several long-established regional utilities:<\/p>\n These players remain central to managing electricity generation, transmission, and customer delivery across Japan. Each is adapting within a framework of market liberalization, evolving supply sources (like nuclear restarts and LNG deals), and growing demand.<\/p>\n Explore Our Full Library of Energy and Power Industry Research Reports: https:\/\/www.mordorintelligence.com\/market-analysis\/energy-power?utm_source=emailwire<\/a> \u00a0<\/strong><\/p>\n Conclusion<\/strong><\/p>\n Growth reflects ongoing liberalization, improved market mechanisms like JEPX and TOCOM derivatives, and a gradual shift in energy supply mix, including a nuclear comeback and strengthened LNG contracts.<\/p>\n However, long-range forecasts signal caution: electricity demand could rise sharply, pushing Japan toward potential capacity shortfalls unless aging infrastructure is upgraded and new sources are brought online. With decades ahead marked by technological adoption (like AI), evolving energy policies, and infrastructure uncertainty, Japan\u2019s power industry stands at a meaningful crossroads.<\/p>\n Explore Related Reports:<\/strong><\/p>\n Asia-Pacific (APAC) Hydropower Market<\/strong>: The Asia-Pacific (APAC) Hydropower Market Report is segmented by Size (Large Hydropower, Small Hydropower, and Others) and Geography (China, India, Japan, Vietnam, and the Rest of Asia-Pacific). The market size and forecasts are provided in terms of installed capacity (GW) for all the above segments.<\/p>\n Get Full Insights: https:\/\/www.mordorintelligence.com\/industry-reports\/asia-pacific-hydropower-market?utm_source=emailwire<\/a><\/p>\n Japan High Voltage Direct Current (HVDC) Transmission Systems Market<\/strong>: The market is segmented by Transmission Type (HVDC Overhead Transmission System, and HVDC Underground and Submarine Transmission System) and Component (Converter Stations and Transmission Medium (Cables)).<\/p>\n Get Full Insights: https:\/\/www.mordorintelligence.com\/industry-reports\/japan-high-voltage-direct-current-hvdc-transmission-systems-market-industry?utm_source=emailwire<\/a><\/p>\n Japan Thermal Power Plant Market<\/strong> is segmented by Fuel Type (Coal, Gas, Nuclear, and Others)<\/p>\n Get Full Insights: https:\/\/www.mordorintelligence.com\/industry-reports\/japan-thermal-power-plant-market?utm_source=emailwire<\/a><\/p>\n About Mordor Intelligence:<\/strong><\/p>\n Mordor Intelligence is a trusted partner for businesses seeking comprehensive and actionable market intelligence. Our global reach, expert team, and tailored solutions empower organizations and individuals to make informed decisions, navigate complex markets, and achieve their strategic goals.<\/p>\n With a team of over 550 domain experts and on-ground specialists spanning 150+ countries, Mordor Intelligence possesses a unique understanding of the global business landscape. This expertise translates into comprehensive syndicated and custom research reports covering a wide spectrum of industries, including aerospace & defense, agriculture, animal nutrition and wellness, automation, automotive, chemicals & materials, consumer goods & services, electronics, energy & power, financial services, food & beverages, healthcare, hospitality & tourism, information & communications technology, investment opportunities, and logistics.<\/p>\n For any inquiries or to access the full report, please contact:<\/strong><\/p>\n media@mordorintelligence.com<\/a> Mordor Intelligence, 11th Floor, Rajapushpa Summit, Nanakramguda Rd, Financial District, Gachibowli, Hyderabad, Telangana \u2013 500032, India<\/p>\n<\/p><\/div>\n\n
Installed power capacity is on an upward trend, steadily rising from around\u00a0324.16\u202fGW in 2024\u00a0to\u00a0328.33\u202fGW in 2025, and expected to reach nearly\u00a0350\u202fGW by 2030.<\/li>\n
Japan\u2019s power sector has undergone significant liberalization following the Fukushima disaster. As of April 2016, residential and small-business consumers gained the freedom to choose among more than 250 electricity suppliers, fostering consumer choice.\u00a0Electricity trading through the\u00a0Japan Electric Power Exchange (JEPX)<\/strong>has expanded, offering both spot and forward markets since 2005.\u00a0Additionally, in 2024 and 2025, the\u00a0Tokyo Commodity Exchange (TOCOM)<\/strong>introduced weekly and fiscal-year electricity futures to help manage price volatility and demand fluctuations.<\/li>\n
Japan is ramping up nuclear power once more, aiming to restore its share to about\u00a020% by 2040<\/strong>, compared to only\u00a08.5% in 2023<\/strong>. This includes restarting older reactors and exploring new reactor technologies such as small modular reactors (SMRs). Meanwhile, LNG remains a key transitional fuel. A renewed focus on long-term LNG contracts has emerged, especially due to rising electricity demand from data centers and the need to hedge against energy volatility.<\/li>\n
China\u2019s expansion of AI and related tech infrastructure is creating spiking electricity demand that could create strain, especially if aging power plants aren\u2019t replaced.\u00a0Projections show potential shortfalls ranging from\u00a023<\/strong>\u202fGW to 89<\/strong>\u202fGW<\/strong>by\u00a02050<\/strong>, depending on demand growth and infrastructure decisions.<\/li>\n<\/ol>\n\n
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