silhouette of person standing near windmills.

Grassley and Curtis stall Treasury picks as fight over wind and solar tax credits intensifies

Two Republican senators are blocking three of President Trump’s Treasury Department nominees to protest a new executive order tightening deadlines for federal wind and solar tax breaks.

Kelsey Tamborrino and Josh Siegel report for POLITICO.


In short:

  • Senators Chuck Grassley and John Curtis filed procedural holds against Brian Morrissey, Francis Brooke, and Jonathan McKernan, nominees for top Treasury posts.
  • The senators demand Treasury keep the year-long construction grace period they inserted into the law that otherwise ends wind and solar credits after 2027.
  • Their pushback, echoed by GOP senators Lisa Murkowski, Thom Tillis, and Mike Rounds, signals Republican worry that canceling projects could leave the grid short of power and private investors in limbo.

Key quote:

“What it means for a project to ‘begin construction’ has been well established by Treasury guidance for more than a decade. Moreover, Congress specifically references current Treasury guidance to set that term’s meaning in law.”

— Chuck Grassley, Republican senator from Iowa

Why this matters:

Wind and solar tax incentives have underpinned nearly every utility scale clean energy build in the United States for the past 15 years. Stripping them away while demand for electricity surges, slowing decarbonization just as global heat records are surging. The dispute also reverberates through rural economies that have come to depend on lease payments and construction jobs tied to turbine and panel installations. Investors say more than $100 billion in planned projects now sits on hold, and engineers warn that delaying new capacity risks reliability shortfalls during summer peaks. The fight tests how far politics can bend the nation’s power transition before the lights flicker.

Related: Trump’s new energy law slashes popular clean energy tax credits

A stack of wooden blocks that say CO2 with arrows pointing downward

A company funded by Bill Gates wants to capture BC's carbon

A northern B.C. village may become the home of a new carbon-storage facility built by a Bill Gates-backed American startup. Locals are skeptical but hopeful.

A perspiring woman fanning herself on a sunny day
Credit: A. C./Unsplash+

Why Europe is the fastest-warming continent

Europe is sweltering under an early heat wave that has broken records and claimed lives. What is happening to make it so hot?
The interior of a cement plant with funnels leading to conveyer belts

A shock to the system could slash cement’s emissions

By using electricity and recycled materials, researchers made a cement that cuts energy use by 70% and carbon dioxide emissions by as much as 98% compared with traditional cement production.

A hand blocking the sun's rays

With geoengineering, a fringe climate solution moves into the mainstream

Volcanic activity inspired the concept of solar engineering. One company says it can block the sun’s rays to cool the planet. But should it?
Exterior of a gray warehouse-type building

Video: How the AI boom is powered by legal loopholes and secret deals

Lured by prolific gas reserves and an industry-friendly government, AI companies have flocked to the Lone Star State in droves.

A gloved hand holding a petri dish

Our warming planet is a Petri dish for new and deadly microbes

As rising temperatures reshape ecosystems around the world, scientists are warning that bacteria, fungi, and other microbes are adapting in ways that could threaten human health.

Mosquito (Culex pipiens) with his stomach full of human blood sitting on mosquito netting
Credit: Birute Vijeikiene/BigStock Photo ID: 8097563

Aid cuts and climate change drive deadly malaria surge in Zimbabwe

A surge in malaria cases in Zimbabwe is exposing fragile health systems and growing treatment shortages in rural areas.
From our Newsroom
Multiple Houston-area oil and gas facilities that have violated pollution laws are seeking permit renewals

Multiple Houston-area oil and gas facilities that have violated pollution laws are seeking permit renewals

One facility has emitted cancer-causing chemicals into waterways at levels up to 520% higher than legal limits.

Regulators are underestimating health impacts from air pollution: Study

Regulators are underestimating health impacts from air pollution: Study

"The reality is, we are not exposed to one chemical at a time.”

Pennsylvania governor Josh Shapiro speaks with the state flag and American flag behind him.

Two years into his term, has Gov. Shapiro kept his promises to regulate Pennsylvania’s fracking industry?

A new report assesses the administration’s progress and makes new recommendations

silhouette of people holding hands by a lake at sunset

An open letter from EPA staff to the American public

“We cannot stand by and allow this to happen. We need to hold this administration accountable.”

wildfire retardants being sprayed by plane

New evidence links heavy metal pollution with wildfire retardants

“The chemical black box” that blankets wildfire-impacted areas is increasingly under scrutiny.

Stay informed: sign up for The Daily Climate newsletter
Top news on climate impacts, solutions, politics, drivers. Delivered to your inbox week days.