The Sierra Club said data centers with big energy needs — and Gov. Mike Braun's focus on keeping coal plants open — are largely responsible for the changes.

The number of clean energy jobs in Indiana barely grew last year. That includes jobs in sectors like energy efficiency, wind, solar, electric vehicles and biofuels.

The credits help pay for everything from solar and wind projects to nuclear and carbon storage.

There's no shortage of controversial energy and environment bills this legislative session — from who should pay to develop small nuclear reactors to defining natural gas as "clean energy." But there are several that both Indiana Republicans and Democrats agree on.

The author said it would allow Indiana to use federal clean energy grants to fund natural gas and propane projects. But environmental groups have said that's unlikely — because most federal grant programs don’t define it that way.

Indiana nonprofits are unsure if — or how — some climate-friendly grants will move forward. President Trump’s executive order freezing funding from the Inflation Reduction Act and the bipartisan infrastructure law — as well as the lawsuits pushing back — have created a lot of uncertainty.

The Indiana Senate passed a bill Monday that would define natural gas and propane as clean energy sources. Senate Bill 178 now moves to the House for consideration.