Energy storage

Solar

Puerto Rico closes $861M DOE loan guarantee for huge solar-battery project

The island has ambitious climate goals and a ton of rooftop solar, but has so far built few large-scale clean energy projects. Project Marahu could change that.

By Akielly Hu . 15 October 2024

Solar panels in Humacao, Puerto Rico. (Lester Jimenez/AFP via Getty Images)

Batteries

Used EV batteries could get a second life storing clean energy on California's grid

A surge in retired EV batteries is helping to eliminate second-life EV battery storage hurdles, just in time to help meet clean energy mandates.

By Elizabeth McCarthy . 22 June 2021
Batteries

Could installing batteries under solar panels kick-start the commercial building market?

Yotta Energy thinks batteries could become as common as microinverters on commercial solar rooftops, and has built in thermal safety features to win over skeptics.

By Jeff St. John . 22 June 2021
Climatetech finance

Ikea and Rockefeller foundations pledge $1B to seed distributed clean energy in developing nations

The funding seeks to empower 1 billion of the estimated 2.5 billion who lack access to reliable electricity.

By Jeff St. John . 21 June 2021
Climatetech finance

7 cleantech segments beyond wind and solar that are luring investors

Investing in wind and solar is all the rage. But what other cleantech categories are catching the eye of investors in 2021?

By Jason Deign . 21 June 2021
Transmission

Federal plan for regional cooperation on transmission infrastructure could boost clean energy

FERC tackles the thorny problem of interstate transmission planning.

By Emma Foehringer Merchant . 21 June 2021
Policy & regulation

Illinois and North Carolina are hashing out the future of clean energy, and it's getting dramatic

Hope you had a restful weekend. Time to kick off the week with two states hashing out the future of clean energy.

By Julian Spector . 21 June 2021
Grid edge

Housing developers and utilities join forces to create the next generation of microgrids

Sharing rooftop solar, batteries and grid controls between utilities and customers is a complex undertaking, but it could yield benefits greater than the sum of their parts.

By Jeff St. John . 15 June 2021
Energy storage

A power plant in Maryland ditches coal for batteries, a first for the US

Power producer Talen Energy is installing batteries at a retired coal plant near Baltimore.

By Julian Spector . 14 June 2021
Long-duration energy storage

Long-duration energy storage can help clean up the grid, but only if it's super cheap

To compete with clean firm generation, long-duration storage needs to come down massively in price.

By David Roberts . 10 June 2021
Batteries

A huge battery fleet is coming to the Philippines

Fluence is delivering 470 megawatts of grid batteries to bolster grid stability in just over a year's time.

By Julian Spector . 10 June 2021

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Energy storage

Puerto Rico closes $861M DOE loan guarantee for huge solar-battery project

Used EV batteries could get a second life storing clean energy on California's grid

Could installing batteries under solar panels kick-start the commercial building market?

Ikea and Rockefeller foundations pledge $1B to seed distributed clean energy in developing nations

7 cleantech segments beyond wind and solar that are luring investors

Federal plan for regional cooperation on transmission infrastructure could boost clean energy

Illinois and North Carolina are hashing out the future of clean energy, and it's getting dramatic

Housing developers and utilities join forces to create the next generation of microgrids

A power plant in Maryland ditches coal for batteries, a first for the US

Long-duration energy storage can help clean up the grid, but only if it's super cheap

A huge battery fleet is coming to the Philippines