Energy storage

Clean energy

Hawaii quit coal one year ago. Here's how it's been going

The lights stayed on, but the state's experience offers some lessons on what can go wrong in the transition to clean energy.

By Julian Spector . 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
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
Long-duration energy storage

Is Azelio's abrupt bankruptcy a bad omen for long-duration energy storage?

Many say long-duration storage is the energy transition's holy grail, but startups in the space are staring down brutally tough market conditions.

By Eric Wesoff . 3 August 2023
Energy storage

Tesla alum aims to build the power company of the future

Equilibrium Energy is live in Texas with an offering to rent grid batteries and make money with them in the ERCOT markets. But CEO Ryan Hanley says it's just the start.

By Julian Spector . 1 August 2023
Energy storage

Industrial heat startup Rondo to open world’s largest battery factory

Rondo uses clean energy to heat a special brick made from a centuries-old recipe, then uses the stored heat to help decarbonize energy-intensive industry.

By Julian Spector . 27 June 2023
Batteries

LG kicks off colossal ramp-up of US factories for EV and grid batteries

The South Korean company will build nearly 280 gigawatt-hours' worth of factory capacity across America to meet growing demand for grid storage and EV batteries.

By Julian Spector . 26 June 2023
Energy storage

New York City is getting its biggest battery system yet

Con Edison said it's about to begin operating a 7.5 MW battery system in Staten Island as New York grapples with grid reliability concerns and rising power demand.

By Maria Gallucci . 22 June 2023
Podcast

4 ways to store sunlight

Renewables are going to need a lot of backup. Low-carbon storage technologies could be the answer.

Play

By Shayle Kann . 57 min . 25 May 2023
Batteries

Battery firms set to thrive under new California rooftop solar regime

Home battery installs could double in California this year, now that the state has ditched net metering and overhauled incentives for rooftop solar owners.

By Julian Spector . 28 April 2023