Arlington Energy, a clean energy investment group, has announced plans to build out a 1GW portfolio of energy storage and gas peaker projects across the UK after securing initial funding of £200 million (US$255 million) from an offshore fund of institutional investment.

‘Europe’s largest’ energy storage pilot project at an industrial site, combining 2MWp of rooftop solar with a total of 4.2MWh of energy storage across a lithium-ion battery system and two flow batteries has been inaugurated in Belgium.

Quoting an expected doubling in installed PV capacity over the next five years, a partnership between Chinese battery storage system maker BYD and European PV inverter company SMA is targeting the USA market, identifying it – along with Africa – as having “high growth potential” for the pair’s products.

The UK’s second subsidy-free solar farm, and the first by a local authority using battery storage, has been completed by West Sussex County Council in a project that ticked “every box” and will generate significant income over the next 25 years.

As well as Elon Musk remarking that the company may have had its “best ever quarter” for solar since the SolarCity takeover, Tesla’s energy storage deployments have enjoyed a ramp up, while a fellow exec hinted the stationary battery business is constrained by cell supply.

As Japan’s heavily regulated energy markets continue a process of liberalisation and supposedly increasing consumer choices, utility TEPCO has launched a smart electricity tariff enabled by the capabilities of residential battery storage.

A 30MW / 30MWh battery energy storage system has been inaugurated with a ceremony in Victoria, Australia, with one project partner describing the switching-on as “a real watershed moment in the continuing modernisation” of the state’s energy supply.

South Africa’s state-owned utility Eskom has unveiled its Distributed Battery Storage Programme at an event this week, committing to solar-plus-storage and energy storage projects totalling 1400MWh.

Four energy storage projects that have been proposed as an alternative to expensive transmission and distribution (T&D) network upgrades, totalling 38.5MWh of capacity, have been awarded to developer EsVolta by California utility Southern California Edison (SCE).

The renewables investment community “needs to come to grips” with merchant risk after a decade of being “spoiled” by government-backed subsidies for wind and solar.