大手電力10社、4月電気代を一斉値上げ 政府の補助金終了受け
“What, seriously? Electricity prices going up AGAIN?” is the buzz online as Japan's 10 major power companies announce a simultaneous price hike starting April.
This is due to the complete end of the government's Electricity and Gas Price Volatility Mitigation Program subsidies.
This spring is set to be quite challenging for household budgets.
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Electricity and Gas Price Fluctuation Mitigation Program
The "Electricity and Gas Price Fluctuation Mitigation Program" is the official name for the government's measures implemented since January 2023 to alleviate the burden of electricity and gas charges. Introduced to support national life and economic activities amidst soaring international energy prices, it provided subsidies to utility providers: 7 yen per kWh for households (Jan-Aug 2023) and 3.5 yen (same period) for businesses, which were then deducted from electricity bills. For example, a household using 300kWh per month could save up to 2,100 yen (7 yen × 300kWh). This subsidy was gradually scaled back from September 2023 usage to 3.5 yen/kWh for households, then to 1.8 yen/kWh from January 2024 usage, and will completely end with the April 2024 usage. This termination means the amount previously absorbed by the subsidy will now be directly added to charges, becoming the primary cause of the current "10 major power companies simultaneously raising electricity prices in April." The program's end is expected to significantly impact household budgets and further heighten consumer awareness of energy conservation and costs.
Fuel Cost Adjustment System
The Fuel Cost Adjustment System is a component of electricity bills that automatically reflects fluctuations in the import prices of crude oil, LNG (liquefied natural gas), and coal—fuels for thermal power generation. Power companies calculate a "fuel cost adjustment amount" based on the average fuel price over a certain period (usually three months) to stabilize procurement costs, which is then added to or subtracted from the basic rate or electricity volume charge. The system aims to prevent sharp fuel price fluctuations from pressuring power companies' management or generating undue profits, thereby maintaining appropriate rates. However, if fuel prices soar due to global circumstances or exchange rates, the fuel cost adjustment amount also increases significantly, leading to higher overall electricity bills. Especially after Russia's invasion of Ukraine, international fuel prices surged and the yen depreciated, causing fuel cost adjustment amounts for various power companies to reach their caps or rise significantly. While some power companies have a cap for regulated rates (government-set price limits), this cap has been abolished for liberalized rate plans, making it easier for rising fuel prices to be directly reflected in charges. Although the current price hike is directly caused by the end of subsidies, the Fuel Cost Adjustment System suggests that international affairs may continue to directly impact electricity prices in the future.
Japan's 10 Major Power Companies and the Impact of Electricity Liberalization
The "10 major power companies" refer to the regional electricity companies: Hokkaido, Tohoku, Tokyo Electric Power Company Energy Partner, Chubu, Hokuriku, Kansai, Chugoku, Shikoku, Kyushu, and Okinawa Electric Power. These companies once exclusively supplied power to their respective regions and still serve many households and businesses. The "full liberalization of electricity retail" in April 2016 abolished the regional monopoly, allowing consumers to purchase electricity from these major companies and various new entrants called "new power companies." This liberalization was expected to promote competition, diversify rate plans, and improve services. However, the major power companies' strong supply infrastructure, expertise, and brand power remain significant. During periods of soaring fuel costs and tight supply, some new power companies with weaker foundations have withdrawn. While the current price hike is due to the common factor of subsidy termination, major power companies have developed diverse rate plans since liberalization, offering both regulated rates (traditional plans with government-set caps) and liberalized rates (market-driven prices). This price hike primarily affects liberalized rate plans; regulated rate hikes require separate government approval. Even with liberalization, the actions of the major power companies continue to significantly influence the entire Japanese electricity market.