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)

Batteries

Hawaii is paying home-battery owners to help the grid. How's that going?

Hawaii's main utility reached a deal with pro-solar groups to reward households for sharing their clean energy. We check in on the results at the six-month mark.

By Julian Spector . 6 October 2022
Solar

Community solar can help revitalize communities. Here’s how

The Biden administration wants community solar to reduce energy burdens and build local jobs and economies. Equity-focused solar developers are ready.

By Jeff St. John . 3 October 2022
Solar

Ojjo aims to cut solar project costs with better foundation for panels

The steel-truss startup just raised another $40 million and landed the biggest solar-storage project in the U.S. as a client.

By Julian Spector . 30 September 2022
Solar

Manhattan's largest rooftop solar array is about to come online

Developer Siemens overcame design obstacles to build the Javits Center rooftop solar system, which also includes a 3.5-megawatt indoor battery.

By Maria Gallucci . 28 September 2022
Solar

Puerto Rico’s solar users are still among 'fortunate few' with power

Most Puerto Ricans remain in the dark after Hurricane Fiona, thanks to a grid plagued by problems. Owners of solar-plus-battery systems are faring better.

By Maria Gallucci . 23 September 2022
Solar

La energía solar es un salvavidas en Puerto Rico en medio del Huracán Fiona

La tormenta está poniendo a prueba las nuevas instalaciones de energía solar casi cinco años después del aniversario del huracán María.

By Maria Gallucci . 19 September 2022
Solar

Solar is lifeline in Puerto Rico after Hurricane Fiona knocks out power

New rooftop solar projects in Puerto Rico are being put to the test by the severe storm, which hit the U.S. territory nearly five years after Hurricane Maria.

By Maria Gallucci . 19 September 2022
Utilities

Why does Duke Energy's carbon plan shortchange solar?

The utility wants to build new gas plants. Its critics want it to build far more solar and batteries. North Carolina regulators have until year's end to decide.

By Jeff St. John . 19 September 2022
Solar

How solar donors can cut the power bills of low-income families

Boston-based Resonant Energy pioneers a new way to share solar savings with disadvantaged communities in Massachusetts.

By Alison F. Takemura . 16 September 2022
Solar

Mixing solar power and agriculture: A blueberry farm does a test run

A farmer in Maine has teamed up with a solar developer and university researchers to find out how his berries fare when partially shaded by solar panels.

By Kari Lydersen . 12 September 2022