Tesla Motors’ possible acquisition of leading US residential PV installer SolarCity has been sealed with an all-stock transaction valued at around US$2.6 billion.

The US must open up access to its grid and allow anyone who generates electricity to sell it on, according to an executive from energy storage company sonnen.

Moixa Technology is hoping to raise up to £20 million by the end of the year to fund its expansion into Europe, and has recently gained investment from three big beasts from the UK energy sector.

South Korean corporate industrial holdings company Doosan has acquired Seattle-based 1Energy Systems, which develops the software platform needed to automatically integrate distributed energy resources (DER) into the grid.

Battery manufacturer SimpliPhi will sell a high-voltage battery for the C&I market.

The power capacity of global installed in front of the meter energy storage is expected to reach 21.6GW in 2025, according to a new report by Navigant Research, with one of the firm’s analysts calling this exponential growth dramatic, but also realistic.

A field trial to deploy 50 grid-connected energy storage systems will go ahead in Scotland between UK energy storage firm Moixa Technology, vertically integrated energy company Scottish Power and an energy efficiency advisory group.

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.

GE Ventures, the venture capital arm of US-headquartered multinational engineering group GE, has invested in German energy storage hardware and services provider Sonnen.

While seeming “tech breakthroughs” garner a great deal of media attention, the three key factors in determining the likely impact of storage tech companies are innovative technology, scalability and a proven track record, a Bloomberg New Energy Finance analyst has said.