October 4 (Solar) – Japan has for the first time transferred surplus renewable electricity from the island of Kyushu to its main island of Honshu, Reuters reports.
The transfer is the first one since the establishment of the Organization for Cross-regional Coordination of Transmission Operators (OCCTO) back in 2015. The grid monitoring body approved the transfer on Monday of up to 1.125 GW by Kyushu Electric Power Co (TYO:9508) to five utilities on Honshu island, including Kansai Electric Power (TYO:9503) and Chubu Electric Power (TYO:9502), an OCCTO spokesperson told Reuters.
The island of Kyushu enjoys a rapid expansion of solar power installations thanks to the ample solar irradiance there and the availability of land. Regulations adopted in 2015, however, allow utilities to curb renewable electricity supplies in their networks at certain periods so as to keep the stability of the grid. Such a restriction was avoided through the transfer on Monday.
Reuters said regional monopiles have warned interconnections between their networks may not be able to handle large power transfers.