IRA Structure

The Inflation Reduction Act (2022) is the largest climate investment in US history: roughly $370 billion in energy and climate provisions, primarily delivered through tax credits rather than direct spending or mandates. The design choice is deliberate. Tax credits are politically durable, market-driven, and difficult for future administrations to repeal without legislation.

The IRA's architecture has three layers. Technology-specific credits extend and expand existing incentives: 30% ITC for solar, $28/MWh PTC for wind, $3/kgH2 for clean hydrogen, $85-180/tonne for carbon capture. Bonus adders reward domestic content (10%), energy community siting (10%), and prevailing wage/apprenticeship compliance (5x base credit). Technology-neutral transition phases out technology-specific credits in favor of "clean electricity" credits after 2025, letting the market choose the cheapest decarbonization pathway.

The investment flow. CBO estimates the IRA will deploy $370 billion over 10 years. Private analysts (Goldman Sachs, Credit Suisse) estimate actual deployment at $1-1.2 trillion because the credits are uncapped: every qualifying project receives them, with no aggregate limit. More projects than expected means higher government cost but also faster decarbonization.

Can a future administration undo the IRA?

Partially, but not easily. Tax credits are embedded in the Internal Revenue Code, requiring congressional legislation to repeal. Billions in private investment have already been committed based on IRA incentives, much of it in Republican-held districts. Full repeal is politically difficult; targeted modifications are more likely. The IRA's design exploited the difficulty of repealing embedded tax provisions, a feature its architects considered central to the strategy.

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