Energy storage

Clean energy

This spring, clean energy in the US set record after record

In California, Texas, and other places, solar, wind, and batteries hit new highs. Here are the big takeaways from this year’s shoulder season.

By Julian Spector . 15 June 2026

A field of red, orange, and yellow blooms beneath transmission lines — (Brandon Bell via Getty Images)

Long-duration energy storage

Pioneering grid battery nudges California closer to 24/7 clean energy

The Tumbleweed installation just went online in Kern County. It can store clean energy and discharge it for eight hours straight, a harbinger of what’s to come.

By Julian Spector . 8 June 2026
Batteries

Why North Carolina’s electric co-ops are turning to grid batteries

From the suburbs to the barrier islands, the state’s local cooperatives are using aggregated battery systems to weather outages and protect consumers’ wallets.

By Elizabeth Ouzts . 4 June 2026
Energy storage

The hidden innovation behind Antora’s massive new heat battery

The startup is turning on a 200-battery project in South Dakota — and pioneering an electric utility rate that could help boost thermal energy storage more widely.

By Maria Gallucci . 27 May 2026
Batteries

The world is installing grid batteries at a blistering pace

A total of 112 gigawatts of batteries were deployed around the world in 2025 — 10 times the amount added just four years prior.

By Dan McCarthy . 15 May 2026
Batteries

For cheaper power, Virginia’s local utilities build small grid batteries

Rural co-ops and a city utility will save big with a collection of 5-MW batteries, which are easier to site and faster to get up and running than megaprojects.

By Elizabeth Ouzts . 4 May 2026
Batteries

Big grid batteries are finally on a roll in New England

The region's largest battery yet recently came online in Massachusetts, where state climate policies aimed at cleaning up the grid are boosting the tech.

By Julian Spector . 16 April 2026
Batteries

AES pulls out of San Diego area battery project after local opposition

Was the developer pushing the boundaries of proximity, or are today’s new battery designs just fine for residential areas?

By Julian Spector . 9 April 2026
Batteries

Nation's largest urban battery to take center stage near San Francisco

Developer Arevon has begun building a 1-gigawatt-hour storage project in Daly City, near the Cow Palace arena, where it will serve up clean energy at night.

By Julian Spector . 3 April 2026
Clean energy manufacturing

Suddenly, the US manufactures a ton of grid batteries

Energy storage is surging on the U.S. grid — and now the country has more than enough battery-making factories to meet that booming demand.

By Julian Spector . 23 March 2026
Solar

The fight over California’s community solar plan is heating up

Regulators are long overdue on their mandate to create a community solar-storage program. And critics say the plan that is in the works is “fatally flawed.”

By Jeff St. John . 17 March 2026