Solar

Guest essay

It's time for solar microgrids to replace dirty diesel generators

In rural sub-Saharan Africa and South Asia, costly diesel generators are often the only power source. A concerted push to deploy solar microgrids could change that.

By Manoj Sinha, Joseph Nganga . 28 October 2022
Solar

Enphase to manufacture solar inverters in US, spurred by new tax credits

Clean energy hardware juggernaut Enphase says it will produce millions of solar microinverters in the U.S. by late 2023, thanks to the Inflation Reduction Act.

By Julian Spector . 27 October 2022
Solar

Perovskites can make solar panels more efficient than silicon alone

But will their remarkable performance in the lab ever translate into real market momentum? Caelux and other tandem-solar startups are betting the answer is yes.

By Eric Wesoff . 19 October 2022
Solar

How to make sure your solar-plus-battery system works in a blackout

After disasters like Hurricane Fiona, solar panels and batteries can be a lifeline. Energy experts offer some do's and don'ts to help make the most of backup systems during outages.

By Maria Gallucci . 17 October 2022
Solar

How neighbors are banding together to get cheaper rooftop solar

Nonprofit Solar United Neighbors helps demystify the buying process and win better deals by bundling customers. It's also become a force for solar advocacy.

By Jeff St. John . 11 October 2022
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