In June 2025, the distributed energy resources and power retail company Rezil joined the Electric Power Reserve Exchange (EPRX), which runs Japan’s balancing market.
EDF Trading Japan exited the exchange, likely reflecting the consolidation of its Japan power trading activities into its Singapore-based joint venture with JERA, JERA Global Markets. JERA and its decarbonization-focused subsidiary JERA Cross are EPRX members.
With that, the exchange had 93 members as of the end of May 2025.
EPRX was established on April 1, 2024, to take over the operation of Japan’s balancing market, which was partially launched in April 2021, from a cooperative of Japan’s nine mainland TSOs.
