News in brief: SolarEdge’s Powerwall-compatible StorEdge self-consumption solution is now available internationally; AES completes another 10MW project in Holland which will provide grid services; and Japan’s Sumitomo Corporation’s Willey Battery Utility is the latest energy storage system to join PJM’s frequency regulation market.

Corporations and utilities are already interested in energy storage but must collaborate to advance deployment and lower costs, avoiding some of the past mistakes of the PV industry, according to the heads of one California-based industry group.

DNV GL’s new recommended practice guidelines for grid-connected energy storage systems is aimed at “reducing risks” for investors and the wider community, the document’s lead author has said.

One of India’s largest solar developers, ACME Cleantech Solutions, believes that its strong track record in PV installations will set it in good stead to pioneer solar-plus-energy storage solutions across the country, in what it claims is an opportune moment to start pilot projects.

Panasonic has given the first indication of the expected size of its investment in collaborator-competitor Tesla’s battery Gigafactory, which according to the company’s president could be up to US$1.6 billion.

Globally, energy storage is developing rapidly. Businesses that are shaping the market are being asked to nominate themselves to join the Energy Storage 100, a new industry initiative from Energy Storage News’ publisher, Solar Media.

Production and deliveries of Tesla’s stationary storage systems have now begun, while a company spokesman said it welcomes new competitors such as Faraday Future to the EV space – in line with Tesla’s stated values to accelerate clean energy deployment.

The former VP of Solar Grid Storage has predicted average Balance of Systems (BoS) costs for energy storage will drop from around US$670 to less than US$400 per kilowatt in the next five years.

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

In light of the Paris COP21 climate conference, New York City announced plans to incorporate 2,000 electric vehicles (EVs) into its municipal fleet by 2025. New York City claims this move will make it the largest EV fleet operator in the world. Analyst Dean Frankel of Lux Research takes a dive beyond the headlines.