Batteries

Long-duration energy storage

Sacramento utility rolls out its first long-duration grid batteries

The municipal utility is tapping flow batteries from ESS for on-demand clean power. The project, ESS’ biggest, will provide an early test of the tech’s potential.

By Julian Spector . 18 September 2023
Batteries

A big battery is replacing this old Massachusetts fossil power plant

Thanks to a state program incentivizing cleaner peak power, a developer is building a 45 MW grid battery at the site of a fossil power plant shut down in 2022.

By Sarah Shemkus . 13 September 2023
Clean energy manufacturing

Another US EV-battery recycler just raised a massive funding round

Ascend Elements attracted $542 million in investment to make cathodes from spent EV batteries, just a week after Redwood Materials raised $1 billion.

By Jeff St. John . 6 September 2023
Long-duration energy storage

Eos wins $400M DOE loan guarantee to build longer-lasting batteries

Long-duration energy storage is a tough business, but it's vital to decarbonizing the grid. Eos thinks its zinc-based batteries are the best candidate for the job.

By Jeff St. John . 31 August 2023
Energy storage

Texas hooked up its first virtual power plants to help the grid

Select customers now have the power to participate in Texas energy markets with their own devices — and to get paid for doing so.

By Julian Spector . 31 August 2023
Recycling renewables

Redwood Materials lands $1B to boost its battery recycling efforts

The startup founded by Tesla alum JB Straubel wants to spend $7 billion on recycling to supply a U.S. battery industry now dependent on China.

By Jeff St. John . 30 August 2023
Batteries

Vermont’s biggest utility dramatically expands home battery subsidies

Since 2015, Vermont's Green Mountain Power has helped a limited number of customers install home batteries each year. Now the program cap is gone.

By Julian Spector . 24 August 2023
Batteries

New York is reeling from its hot battery summer

The state's ambitious clean energy buildout has hit an unexpected setback after three different grid batteries caught fire in the span of two months.

By Julian Spector . 21 August 2023
EV charging

Tesla bets $76M on wireless EV charging. Can the tech go mainstream?

Wireless charging could solve many of the headaches caused by EV charging today. But for it to even have a chance, automakers need to integrate it into mass production.

By Julian Spector . 9 August 2023
Electric vehicles

Chart: EV ranges are growing, but at a cost

Range anxiety is being replaced by materials anxiety as automakers roll out more powerful batteries that gobble up a greater volume of scarce minerals.

By Eric Wesoff . 4 August 2023