Clean energy

Climatetech finance

Heron Power raises $140M to modernize electrical transformers

Transformers are an old technology that’s in short supply. Tesla alum Drew Baglino thinks his startup can help meet rising demand with new solid-state hardware.

By Jeff St. John . 18 February 2026
Clean energy

Chart: The energy transition attracted record investment in 2025

Investors around the world spent $2.3 trillion on renewables, batteries, power grids, EVs, and more. Meanwhile, investment in fossil fuel supply dropped.

By Ysabelle Kempe . 13 February 2026
Clean energy

A new Ohio bill could be a de facto statewide ban on solar and wind

The state is mulling a bill that calls for all new generation to be “affordable, reliable, and clean” — but its strained definitions would exclude renewables.

By Kathiann M. Kowalski . 12 February 2026
Transmission

What Energy Secretary Wright gets wrong about the grid

Chris Wright trashed solar and wind for not providing much power during Winter Storm Fern — and ignored basic facts about how much renewables contribute year-round.

By Jeff St. John . 10 February 2026
Fossil fuels

What’s driving up Maine’s energy bills? Natural gas.

A new report finds more renewable energy could help make electricity more affordable, despite efforts to scapegoat clean power for rising costs.

By Sarah Shemkus . 6 February 2026
Clean energy

The 4 lessons New England’s grid can learn from Winter Storm Fern

Extreme cold and lots of snow revealed the electric system’s strengths and weaknesses as the region debates how to build a more reliable, affordable grid.

By Sarah Shemkus . 30 January 2026
Clean energy

Chart: In the EU, wind and solar surpass fossil fuels for first time

The watershed moment comes as the region looks to prioritize clean, domestic energy sources over dirty coal or imported natural gas.

By Dan McCarthy, Ysabelle Kempe . 30 January 2026
Data centers

Wisconsin debates how to pay for the power-hungry AI boom

Regulators mull the first big utility plan to provide electricity to data centers flocking to the state, igniting disputes over consumer protection and clean energy.

By Kari Lydersen . 27 January 2026
Climate crisis

Is Trump’s assault on climate and clean energy reversible?

The president’s rollbacks of climate rules and renewable-energy incentives have made headlines, but executive action is much less durable than legislation.

By Zoya Teirstein . 26 January 2026
Politics

Affordability is scrambling energy politics in Massachusetts

Everyone agrees that the state has an energy bill crisis. But there is little consensus on why — or how to fix the increasingly acute problem.

By Sarah Shemkus . 20 January 2026