Peer-to-peer (P2P) energy trading using distributed battery storage in Japanese households could be a scalable business once prohibitive rules change in a couple of years’ time, a provider of renewable energy equipment in the country has said.
Following news yesterday of the first grid-scale solar-plus-storage system on the Hawaiian island of Molokai, two more modestly-sized projects show the potential diversity of applications for energy storage in the US state.
Cheap solar electricity will be traded between neighbouring residents in apartment blocks in Western Australia, enabling peer-to-peer trading of electricity in a project supported by the Australian Renewable Energy Agency (ARENA).
A 250-home ‘virtual big battery’ was switched on in Canberra, Australia last week, allowing residents to sell solar-generated power at a significantly higher price than available to them through feed-in tariff (FiT) policies.
GE’s investment in Sonnen shows a shared belief in online trading of energy and other digitally-enabled services as the fastest potential drivers of a profitable energy storage industry, according to a Sonnen director.