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.

German energy storage hardware and services provider sonnen has launched a new product for the commercial energy storage market using power conversion systems from Ideal Power.

German energy storage hardware and services provider Sonnen has released a new residential solar battery system including self-learning software and grid-tied functions achieving costs of US$1700/kWh, according to an industry analyst

President Obama has announced a raft of activity focussing on the development, investment and regulatory framework for energy storage.

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.

German lithium-ion based energy storage system maker Sonnen says it achieved an undisclosed “seven-figure sales number” in the US in the first quarter of this year.

In the second part of our video interview with Sonnen’s UK director, Martin Allman, we look into the future. We talk smart meters, community energy trading, which steps forward Britain is ready to take – and why the industry needs to walk before it can run.

Sonnen, Germany’s market leader in residential energy storage, recently launched its operations in Britain. We met up with Martin Allman, the company’s UK country director, to hear about key aspects of the company’s strategy.

German storage manufacturer sonnen will begin selling residential storage systems in the US before Christmas.