OCCTO CAPACITY MARKET
Policy Announcement Calendar
Annual schedule for Main, Additional, and Long-Term Decarbonization Capacity Auctions
Data Updated: 2026-04-11 · Schedules are based on OCCTO official announcements and subject to change without notice
Auction Year:
Long-Term Decarbonization Auction FY2025 Auction (Target Delivery FY2030)
1 phasesLong-Term Decarbonization Auction
Contract Results Announcement (~3 months after bidding)Ongoing
Apr 1, 2026 – May 31, 2026
Auction FY2025 / Target Delivery FY2030
Additional Capacity Auction FY2026 Auction (Target Delivery FY2027)
6 phasesAdditional Capacity Auction
Expected Capacity RegistrationOngoing
Apr 7 – 24, 2026
Auction FY2026 / Target Delivery FY2027
Additional Capacity Auction
Auction Commencement DecisionUpcoming
Apr 22, 2026
Auction FY2026 / Target Delivery FY2027
Additional Capacity Auction
Eligibility Notice IssuanceUpcoming
Jun 2, 2026
Auction FY2026 / Target Delivery FY2027
Additional Capacity Auction
Bidding PeriodUpcoming
Jun 3 – 15, 2026
Auction FY2026 / Target Delivery FY2027
Additional Capacity Auction
Calculation Parameters RegistrationUpcoming
Jun 16 – 22, 2026
Auction FY2026 / Target Delivery FY2027
Additional Capacity Auction
Auction Results PublicationUpcoming
Jul 31, 2026
Auction FY2026 / Target Delivery FY2027
Source: 電力広域的運営推進機関（OCCTO） — Schedules are based on OCCTO official announcements and subject to change without notice