Solar

California’s rooftop solar is a benefit, not a cost, to the state

A new study finds rooftop solar will save California $2.3B this year — a rebuttal to the ‘cost-shift’ math that’s led regulators to stifle solar growth.

By Jeff St. John . 15 November 2024

(Melina Mara/The Washington Post via Getty Images)

Solar

California just OK'd a massive new buildout of renewables and clean storage

A plan to replace the Diablo Canyon nuclear plant with 11.5 GW of zero-carbon capacity — and no natural gas — will test the grid value of renewables and batteries.

By Jeff St. John . 25 June 2021
Energy efficiency

The secret of home energy efficiency? Don’t talk about home energy efficiency

Residential retrofit startups agree: Energy savings must pay for quality-of-life improvements to grow business and bring in lower-cost capital.

By Jeff St. John . 24 June 2021
Batteries

Newsletter: The NASA technology keeping batteries cool on solar rooftops

The solar industry thrives on simplifying installations and cutting costs.

By Julian Spector . 23 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
Solar

Newsletter: Ikea assembles the pieces for global off-grid solar push

An unlikely duo just pledged $1 billion to help those people get solar-powered minigrids.

By Julian Spector . 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
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
Clean energy

North Carolina energy bill pits clean energy advocates against Duke Energy's plans for new gas plants

New GOP legislation would boost solar but replace coal plants with natural gas and scuttle many of the Democratic governor's proposed reforms.

By Jeff St. John . 18 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

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Solar

California’s rooftop solar is a benefit, not a cost, to the state

California just OK'd a massive new buildout of renewables and clean storage

The secret of home energy efficiency? Don’t talk about home energy efficiency

Newsletter: The NASA technology keeping batteries cool on solar rooftops

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

Newsletter: Ikea assembles the pieces for global off-grid solar push

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

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

North Carolina energy bill pits clean energy advocates against Duke Energy's plans for new gas plants

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