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Formulating a long-term cross-regional network policy and development plan

Taking the initiative for necessary equipment reinforcement to realize carbon-neutral

OCCTO formulated a long-term cross-regional network policy that provides direction for the development and renewal of nationwide cross-regional interconnection networks and a cross-regional network development plan in accordance with this policy. Specifically, OCCTO formulated a cross-regional network development plan for the Tokyo-Chubu interconnection system, the Tohoku-Tokyo interconnection line, and the Hokkaido-Honshu interconnection system, which is scheduled for completion in fiscal year 2027.
In addition, legislation was developed under the Energy Supply Resilience Act to systematically address a cross-regional interconnection development in a push-type manner, taking into consideration the future power potential. In response to this legislation, in March 2023, OCCTO reflected the long-term perspective for the development of cross-regional networks that ensure consistency with the energy policy toward achieving carbon neutrality by 2050 and the direction of efforts toward the achievement in the long-term cross-regional network policy (master plan for cross-regional interconnection networks).

Long-term perspective for the development of cross-regional interconnentions

Long-term perspective for the development of cross-regional interconnentions

Long-term cross-regional network policy (Master plan)

OCCTO has formulated 1) long-term cross-regional network policy which shows concrete image of future cross-regional network aiming carbon neutrality in 2050, and 2) master plan of long-term cross-regional network policy which realize the policy in March 2023.

Cross-regional network development plan

OCCTO proceeds the process of cross-regional development plan to concretely implement reinforcement of cross-regional network based on the master plan.