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Electric Power Development Co., Ltd.

9513Prime MarketElectric Power & Gas

電源開発株式会社 logo
Electric Power Development Co., Ltd.9513

Power Generation Business

J-POWER's core segment. Responsible for domestic wholesale electricity supply through hydroelectric, thermal, and renewable energy power generation.

PeriodCurrentPreviousChange
Segment revenue (external customers, full year FY2026 (ending March 2026))¥840,445 million¥945,700 million
Segment revenue (including internal sales, full year FY2026 (ending March 2026))¥865,624 million¥967,375 million
Segment profit (ordinary income basis, full year FY2026 (ending March 2026))¥45,351 million¥68,547 million
Segment assets (end of FY2026 (ending March 2026))¥2,317,419 million¥2,274,509 million
Depreciation expense (full year FY2026 (ending March 2026))¥65,898 million¥71,328 million
Capital expenditures (increase in tangible and intangible fixed assets, full year FY2026 (ending March 2026))¥80,784 million¥77,995 million
Total electricity sold across power generation business (full year FY2026 (ending March 2026))66,712 million kWh67,876 million kWh
Thermal equipment utilization rate (full year FY2026 (ending March 2026))67%58%
Hydro water inflow ratio (full year FY2026 (ending March 2026))88%91%

Business Details

Engages in power generation businesses using hydroelectric, thermal (coal, LNG, etc.), and renewable energy sources such as wind and solar power, along with related maintenance and operations, as well as the sale of electricity procured from the wholesale electricity market and other sources. In FY2026 (ending March 2026), the decommissioning of the Matsushima Thermal Power Station and the decline in capacity market prices were factors that reduced revenue, and an increase in repair costs also squeezed segment profit. Segment revenue (including internal sales) was ¥865,624 million, accounting for approximately 69% of the group's total, making it the core business.

Recent Overview

The decommissioning of Matsushima Thermal, the decline in capacity market prices, and increased repair costs combined to reduce segment profit by 33.8% year-on-year.

Power Generation Business segment profit for FY2026 (ending March 2026) decreased 33.8% year-on-year to ¥45,351 million from ¥68,547 million. The main causes were the shrinkage of the revenue base due to the decommissioning of Matsushima Thermal Power Station, the decline in capacity market prices, and an increase in repair costs. On the other hand, the thermal equipment utilization rate rose from 58% to 67%, and electricity sold increased 1.5% year-on-year. In renewables, the hydro water inflow ratio fell from 91% to 88%, resulting in a 2.6% decrease in electricity sold. For FY2027 (ending March 2027), assuming a normal-year hydro water inflow and resolution of thermal equipment troubles, revenue growth in the Power Generation Business is expected.

Key Products

product
Hydroelectric Power Generation

Maximum output of 8,590,369kW. In FY2026 (ending March 2026), electricity sold was 8,332 million kWh, and the hydro water inflow ratio was 88% (down from 91% in the prior period). Fluctuations in the water inflow ratio directly affect earnings.

product
Thermal Power Generation (Coal, LNG, etc.)

Maximum output of 7,912,000kW (a decrease of 500,000kW year-on-year due to the decommissioning of Matsushima Thermal Power Station). In FY2026 (ending March 2026), electricity sold was 41,887 million kWh, and the equipment utilization rate rose to 67% (up from 58% in the prior period). The decommissioning of Matsushima Thermal Power Station was a factor in the shrinkage of the revenue base.

product
Renewable Energy Power Generation (Wind, Solar, Geothermal)

Maximum output is 587,612kW for wind and 46,898kW for geothermal and solar. In FY2026 (ending March 2026), electricity sold was 1,341 million kWh for wind and 149 million kWh for geothermal and solar. Geothermal and solar increased by 44 million kWh year-on-year.

service
Power Procurement and Sales via Wholesale Electricity Market, etc.

In FY2026 (ending March 2026), electricity sold was 15,001 million kWh, down 9.3% from the prior period (16,534 million kWh). This business area is highly susceptible to market price fluctuations.

service
Capacity Market Revenue

A new revenue source that began contributing substantially from fiscal 2024. In FY2026 (ending March 2026), the decline in capacity market prices was a factor reducing revenue, affecting segment performance.

Growth Drivers

  • Increase in electricity sold due to a rise in the thermal equipment utilization rate (67% in FY2026 (ending March 2026)), with 73% projected for FY2027 (ending March 2027)
  • Recovery in hydroelectric power sales as the water inflow ratio returns to a normal-year level (100%) in FY2027 (ending March 2027) (plan: 8.3 billion kWh → 8.8 billion kWh)
  • New construction and upgrading of renewable energy facilities (maximum output for geothermal and solar increased by 29,999kW year-on-year)
  • Continued revenue contribution from the capacity market (established as a new revenue source despite price volatility risk)
  • Realization of environmental value through corporate PPA agreements and expansion of renewable energy aggregation services
  • Groundwork for future CO2-free hydrogen power generation via the GENESIS Matsushima Project (coal gasification power generation IGCC)
  • Strengthening of the future revenue base through the completion of construction and commencement of operations at the Ohma Nuclear Power Station

Risks

  • Risk of fluctuations in capacity market prices (price declines materialized as a revenue-reducing factor in FY2026 (ending March 2026))
  • Risk of fluctuations in the hydro water inflow ratio (dependent on weather and precipitation; fell to 88% in FY2026 (ending March 2026), down from the prior period)
  • Risk of fluctuations in fuel prices for coal, LNG, etc. (affected by market conditions for long-term contracts and spot procurement)
  • Shrinkage of the revenue base due to the decommissioning of Matsushima Thermal Power Station (maximum output decreased by 500,000kW)
  • Risk of increased repair costs (varies depending on the content and scale of periodic inspections; an increase in FY2026 (ending March 2026) squeezed profit)
  • Risk of fluctuations in electricity market prices (expanding exposure due to an increasing proportion of sales to the wholesale electricity market)
  • Risk of construction delays at the Ohma Nuclear Power Station (an extraordinary loss on disposal of fixed assets was recorded in FY2026 (ending March 2026) associated with the disposal of measurement and control equipment, etc.)
  • Risk of impairment losses at Australian renewable energy power generation facilities, the Takasago Thermal Power Station, and others (an impairment loss of ¥32,988 million was recorded in FY2026 (ending March 2026))

Last updated: June 24, 2026