The UK’s power system could become greener and more efficient if excess generation, typically from renewable sources, was used to create hydrogen, a national association of engineers has said.

Axiom Exergy, a US manufacturer of energy storage units that use stored energy for cooling buildings and produce, has netted close to US$8 million from investors including Shell’s venture capital unit and Tesla battery guru JB Straubel.

Convergent Energy + Power, a US-Canadian project developer which has attracted investment from the venture capital arm of Statoil, has acquired 40MW of flywheel energy storage already in operation in grid-balancing markets in New York State and Pennsylvania.

The US government Department of Energy is funding research into storing energy for periods of between 10 and 100 hours, announcing last week that “up to US$30 million” will be available through the Advanced Research Projects Agency-Energy (ARPA-E).

Israel-headquartered SolarEdge launched a software platform for aggregating household energy storage units – and other distributed energy equipment – into virtual power plants, last week. The company’s solution has already been chosen for a VPP project in Australia by AGL, one of the country’s biggest utilities. The commercial launch of the VPP platform direct to customers is now underway. Andy Colthorpe spoke with Lior Handelsman, one of SolarEdge’s founders and vice president of marketing and product strategy.

Virtual power plants (VPPs) can greatly increase the value of home energy storage systems for a range of stakeholders including grid operators, utilities and their customers, according to SolarEdge, which has just launched a VPP software platform.

There will be no benefit to basing home energy storage systems on automotive batteries, in the medium or long term, a representative of Mercedes-Benz Energy has said.

Voltstorage, a German company founded in Munich in 2016, is launching a vanadium-redox-flow (VRF) energy storage system aimed at the residential market.

1414 Degrees, an Australian startup manufacturing thermal energy storage systems using a proprietary silicon storage medium is preparing to launch an Initial Public Offering (IPO) and build a 200MWh ‘module’ at a renewable energy facility.

Intersolar Managing Director Dr. Florian Wessendorf and NAATBatt International Executive Director James Greenberger have collaborated to forecast top trends that are expected to dominate the ees North America show floor this year.