Articles

Geothermal

Here's a model for bringing geothermal to urban areas

Geothermal systems can cleanly heat and cool buildings, but they can be costly and complex to install, especially in cities. A Chicago building shows the way.

By Audrey Henderson . 20 December 2022
ENN

Climate solutions for Great Lakes power grid include better planning, transmission

Advocates say electric grid operators need to update their planning process to better prepare for extreme weather that’s becoming more common, and that more transmission lines can help lessen the risk of blackouts.

By Kathiann M. Kowalski . 19 December 2022
Politics

This newly elected firebrand wants to bring renewables to Louisiana

A political rookie who describes himself as "Entergy's worst nightmare" ousted a long-time incumbent by promising to advance clean energy and hold a reviled utility to account.

By Emily Pontecorvo, Lylla Younes . 19 December 2022
Climatetech finance

Arcadia raises $125M more to cap huge growth year in solar and software

The Washington, D.C.–based startup raised a total of $325M in 2022 and says it's now on a path to "near-term profitability.”

By Julian Spector . 16 December 2022
Clean energy

Chart: What's the top source of electricity in your state?

Twelve states now generate the largest share of their power from zero-carbon sources — wind, hydro or nuclear. The rest still rely most heavily on fossil fuels.

By Maria Virginia Olano . 16 December 2022
ENN

Advocates want new solutions to reduce energy burden in Xcel’s rate case

As Xcel seeks a 21% rate increase for the next three years, community advocates say regulators should use the case as an opportunity to reduce energy burdens on low-income customers.

By Frank Jossi . 16 December 2022
Solar

California slashes payments to new rooftop-solar customers

A controversial decision to cut the value of power that homes export to the grid by up to 75% could kneecap the nation's biggest rooftop-solar market, critics say.

By Jeff St. John . 15 December 2022
ENN

When it comes to energy efficiency, Duke Energy is ‘average.’ Will N.C. regulators demand more?

Studies by outside groups and the utility itself point to massive untapped savings that could save ratepayers billions of dollars.

By Elizabeth Ouzts . 15 December 2022
Solar

Floating solar panels could unlock clean power without wasting land

Scientists say "floatovoltaics" hold promise, especially on hydropower reservoirs — but the environmental impacts are still unclear.

By Sofia Moutinho . 15 December 2022
Solar

How will low-income Californians access home solar and batteries?

Pending changes to net metering could put solar and batteries further out of reach for low-income households, renters, schools and churches, advocates warn.

By Jeff St. John . 14 December 2022