Evidence Shows Three Pillars Remain Crucial for 45V Hydrogen Tax Credit to Protect Climate, Consumers, Industry

This research note by Energy Innovation argues that the U.S. Treasury Department must maintain the "three pillars" (incremental, deliverable, and hourly-matched clean electricity) in the final rules for the Section 45V Clean Hydrogen Production Tax Credit. The author contends that weakening these rules would undermine climate goals, increase electricity costs for consumers, and stifle the development of a flexible, domestic electrolyzer industry.

• Weakening the 45V rules could significantly hinder the U.S. effort to meet its 2030 Nationally Determined Contribution (NDC) of 50-52 percent emissions reductions relative to 2005 levels, potentially setting progress back by 2 to 3 percentage points, which is equivalent to adding 48 million cars to the road.
• The 'three pillars' framework is essential because electrolysis projects that do not meet these standards can produce climate pollution two to five times higher than current natural gas-based steam methane reformation and up to 100 times higher than the 45V threshold for the top tax credit.
• Proposed exemptions to the three pillars could lead to massive emissions increases: exempting 5-10% of existing clean energy could drive 34-136 MMT of CO2 emissions, while allowing relicensed nuclear and hydroelectric plants to count as 'incremental' could drive 140-280 MMT of CO2 emissions.
• Weak 45V rules risk increasing wholesale electricity prices by approximately 10%, whereas strong rules can dampen or eliminate these impacts by requiring new clean energy to be developed in parallel with electrolyzers.
• Strong rules encourage the domestic manufacturing of high-tech, flexible electrolyzers (such as proton exchange membrane or PEM) and align the U.S. with the European Union's clean hydrogen standard adopted in June 2023.
• Evidence suggests that strong 45V rules will not meaningfully slow the deployment of electrolytic hydrogen; one group of companies reported readiness to build over 50 GW of compliant electrolyzers capable of producing more than 6 MMT of clean hydrogen annually.

APA

Esposito, D. (2024). Evidence Shows Three Pillars Remain Crucial for 45V Hydrogen Tax Credit to Protect Climate, Consumers, Industry. Energy Innovation. https://energyinnovation.org/wp-content/uploads/Evidence-shows-three-pillars-remain-crucial-for-45V-hydrogen-tax-credit.pdf

Chicago

Esposito, Dan. Evidence Shows Three Pillars Remain Crucial for 45V Hydrogen Tax Credit to Protect Climate, Consumers, Industry. Energy Innovation, 2024. https://energyinnovation.org/wp-content/uploads/Evidence-shows-three-pillars-remain-crucial-for-45V-hydrogen-tax-credit.pdf.

Wikipedia

{{cite report |last1=Esposito |first1=Dan |title=Evidence Shows Three Pillars Remain Crucial for 45V Hydrogen Tax Credit to Protect Climate, Consumers, Industry |publisher=Energy Innovation |date=July 2024 |url=https://energyinnovation.org/wp-content/uploads/Evidence-shows-three-pillars-remain-crucial-for-45V-hydrogen-tax-credit.pdf |access-date=17 August 2026 |via=Climate Insights Directory}}

BibTeX

@techreport{esposito2024evidence, author = {Esposito, Dan}, title = {{Evidence Shows Three Pillars Remain Crucial for 45V Hydrogen Tax Credit to Protect Climate, Consumers, Industry}}, institution = {Energy Innovation}, year = {2024}, month = jul, url = {https://energyinnovation.org/wp-content/uploads/Evidence-shows-three-pillars-remain-crucial-for-45V-hydrogen-tax-credit.pdf}, urldate = {2026-08-17}, note = {Indexed by Climate Insights Directory} }