From a full week of webinars and panel discussions, there was a huge amount of ground covered. Here are some more of our takeaways and links to some of the news and views we’ve already posted.

Utility PG&E has asked the California Public Utilities Commission (CPUC) for approval of five large-scale battery projects, each with four-hours duration, that will take the investor-owned utility (IOU) past 1,000MW of battery energy storage in its service area.

Merchant energy storage has become an investable asset class in the UK, a provider of battery optimisation services has said, with the market moving away from an emphasis on contracted revenue streams for supplying grid services.

Why the real competition is fossil fuels, which battery optimisation strategies yield the best returns and bringing safety rules and guidelines to the attention of first-responders are among the topics discussed on the latest special episode of the Solar Media podcast.

Long duration energy storage is an “essential” technology to help accelerate renewable deployment, according to the US Department of Energy’s Dr Imre Gyuk, but will require “appropriate regulatory frameworks”.

Climate-smart principles must steer the global search for the minerals and metals required by the green energy boom to make sure the process remains sustainable, according to the World Bank.

The Energy Storage Digital Series, an online-only conference and webinar series, produced and hosted by the events division of our publisher Solar Media kicked off yesterday. Here are some highlights and key quotes from opening panel discussion: ‘Predicting the energy storage tech of the future’.

Q CELLS has officially launched a home solution that promises a “100% sustainable power supply,” through combining solar and battery storage to meet the majority of demand and a digital cloud solution to cover the rest.

Energy solutions company Alfen has seen its quarterly revenue climb across all three of its business lines, with its energy storage arm seeing revenues increase by 144% against the first quarter of 2019.

Two grid-scale battery energy storage projects, one just completed in Texas and one just announced in California, give an indication of the growing market opportunities in the US’ regional grid operators’ service areas.