If Wind and Solar Are So Cheap, Why Do They Need Tax Credits?

In their efforts to persuade Republicans in Congress not to throw wind and solar off a tax credit cliff, clean energy advocates have sometimes made what would appear to be a counterproductive argument: They’ve emphasized that renewables are cheap and easily obtainable.

Take this statement published by Advanced Energy United over the weekend: “By effectively removing tax credits for some of the most affordable and easy-to-build energy resources, Congress is all but guaranteeing that consumers will be burdened with paying more for a less reliable electric grid.”

If I were a fiscal hawk, a fossil fuel lobbyist, or even an average non-climate specialist, I’d take this as further evidence that renewables don’t need tax credits. The problem is that there’s a lot more nuance to the “cheapness” of renewables than snappy statements like this convey.

“Renewables are cheap and they’ve gotten cheaper, but that doesn’t mean they are always the cheapest thing, unsubsidized,” Robbie Orvis, the senior director of modeling and analysis at Energy Innovation, told me back in May at the start of the reconciliation process. Natural gas is still competitive with renewables in a lot of markets — either where it’s less windy or sunny, where natural gas is particularly cheap, or where there are transmission constraints, for example.

Just because natural gas plants might be cheaper to build in those places, however, doesn’t mean they will save customers money in the long run. Utilities pass fuel costs through to customers, and fuel costs can swing dramatically. That’s what happened in 2022 after Russia invaded Ukraine, Europe swore off Russian gas, and the U.S. rushed to fill the supply gap, spiking U.S. natural gas prices and contributing to the largest annual increase in residential electricity spending in decades. Winter storms can also reduce natural gas production, causing prices to shoot up. Wind and solar, of course, do not use conventional fuels. The biggest factor influencing the price of power from renewables is the up-front cost of building them.

That’s not the only benefit that’s not reflected in the price tags of these resources. The Biden administration and previous Congress supported tax credits for wind and solar to achieve the policy goal of reducing planet-warming emissions and pollution that endangers human health. But Orvis argued you don’t even need to talk about climate change or the environment to justify the tax credits.

“We’re not saying let’s go tomorrow to wind, water, and solar,” Orvis said. “We’re saying these bring a lot of benefits onto the system, and so more of them delivers more of those benefits, and incentives are a good way to do that.” Another benefit Orvis mentioned is energy security — because again, wind and solar don’t rely on globally-traded fuels, which means they’re not subject to the actions of potentially adversarial governments.

Orvis’ colleague, Mike O’Boyle, also raised the point that fossil fuels receive subsidies, too, both inside and outside the tax code. There’s the “intangible drilling costs” deduction, allowing companies to deduct most costs associated with drilling, like labor and site preparation. Smaller producers can also take a “depletion deduction” as they draw down their oil or gas resources. Oil and gas developers also benefit from low royalty rates for drilling on public lands, and frequently evade responsibility to clean up abandoned wells. “I think in many ways, these incentives level the playing field,” O’Boyle said.

When I reached out to some of the clean energy trade groups trying to negotiate a better deal in Trump’s tax bill, many stressed that they were most worried about upending existing deals and were not, in fact, calling for wind and solar to be subsidized indefinitely. “The primary issue here is about the chaos this bill will cause by ripping away current policy overnight,” Abigail Ross Hopper, the CEO of the Solar Energy Industries Association, told me by text message.

The latest version of the bill, introduced late Friday night, would require projects to start construction by 2027 and come online by 2028 to get any credit at all. Projects would also be subject to convoluted foreign sourcing rules that will make them more difficult, if not impossible, to finance. Those that fail the foreign sourcing test would also be taxed.

Harry Godfrey, managing director for Advanced Energy United, emphasized the need for “an orderly phase-out on which businesses can follow through on sound investments that they’ve already made.” The group supports an amendment introduced by Senators Joni Ernst, Lisa Murkowski, and Chuck Grassley on Monday that would phase down the tax credit over the next two years and safe harbor any project that starts construction during that period to enable them to claim the credit regardless of when they begin operating.

“Without these changes, the bill as drafted will retroactively change tax policy on projects in active development and construction, stranding billions in private investment, killing tens of thousands of jobs, and shrinking the supply of new generation precisely when we need it the most,” Advanced Energy United posted on social media.

In the near term, wind and solar may not need tax credits to win over natural gas. Energy demand is rising rapidly, and natural gas turbines are in short supply. Wind and solar may get built simply because they can be deployed more quickly. But without the tax credits, whatever does get built is going to be more expensive, experts say. Trade groups and clean energy experts have also warned that upending the clean energy pipeline will mean ceding the race for AI and advanced manufacturing to China.

Godfrey compared the reconciliation bill’s rapid termination of tax credits to puncturing the hull of a ship making a cross-ocean voyage. You’ll either need a big fix, or a new ship, but “the delay will mean we’re not getting electrons on to the grid as quickly as we need, and the company that was counting on that first ship is left in dire straits, or worse.”