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The bill uses targeted tax credits to encourage efficient, smaller-scale onsite CHP deployment and reduced emissions, but does so at a fiscal cost and with eligibility limits and compliance burdens that shift benefits toward some operators while discouraging very large and certain biomass projects.
Owners of qualifying combined heat and power (CHP) systems — businesses, industrial facilities, and utilities — can claim a 10% federal tax credit (20% with domestic-content or energy-community bonuses), lowering upfront project costs and improving project economics.
Customers, local communities, and the general public benefit from lower emissions and potentially reduced energy costs because the credit rewards CHP systems that meet higher efficiency thresholds (>60% overall efficiency), encouraging cleaner onsite generation.
Small and mid-size facilities and rural community projects gain greater feasibility for distributed generation because the credit is applied per-system with prorated support up to 25 MW, lowering barriers for smaller CHP investments.
All taxpayers face indirect fiscal impacts because the tax credit reduces federal revenue, which could increase budget deficits or lead to reduced spending or higher taxes elsewhere.
Taxpayers and project owners claiming the credit must comply with new Treasury regulations and additional recordkeeping and reporting, increasing administrative and compliance costs.
Large industrial and utility-scale CHP projects (over 50 MW) are excluded from eligibility, reducing incentives for very large installations and potentially shifting investment away from projects with economies of scale.
Based on analysis of 2 sections of legislative text.
Introduced December 17, 2025 by Marsha Blackburn · Last progress December 17, 2025
Creates a new federal tax credit for qualified combined heat and power (CHP) system property equal to 10% of the system's basis, with additional 10-percentage-point bonuses available for meeting domestic content and energy-community tests. The credit includes efficiency and capacity limits, special rules for biomass, pro rata reductions for systems above 25 MW (hard cap at 50 MW), and requires Treasury to issue performance, quality, recordkeeping, and reporting regulations after consulting the Department of Energy. The credit generally applies to property where construction begins after December 31, 2024, with a narrow coordination rule for projects begun earlier but placed in service in taxable years starting after that date. The change adds a new 26 U.S.C. §48F into the tax code, cross-references and amends other tax code sections for capacity measurement and related mechanics, adopts certain progress-expenditure rules from existing renewable-energy credit rules, and directs Treasury to define terms, efficiency tests, capacity measurement, domestic-content requirements, and exclusions by regulation.