Trump budget bill would kill subsidies that made home solar mainstream

A last-minute change to the Republican budget bill passed by the House of Representatives would eliminate the 30% tax credit for solar leasing companies, potentially reducing residential solar installations by as much as 40% over the next five years, according to Wood Mackenzie. The elimination of the credit, which also impacts homeowners who own their systems, is being lobbied against by solar companies like Sunrun (RUN) who argue it will stifle a sector that supports American manufacturing jobs and energy independence. While the bill targets leased systems, it is unclear if power purchase agreements (PPAs) will also be affected, representing a potential loophole as 44% of residential systems are sold under such arrangements.

Analysis

A last-minute amendment to the Republican budget bill, recently passed by the House of Representatives, proposes the immediate termination of the 30% tax credit for solar leasing companies, a critical subsidy that underpins the affordability of residential rooftop solar systems. This legislative change, if enacted by the Senate, is projected by energy research firm Wood Mackenzie to potentially reduce residential solar capacity installations by as much as 40% over the next five years. The bill also targets tax credits for homeowners who own their systems outright. Industry stakeholders, including Sunrun (RUN) CEO Mary Powell, are actively lobbying the Senate, arguing that the cuts would stifle economic growth, jeopardize U.S. manufacturing jobs reliant on the solar sector—such as Freedom Forever, which sources 85% of its equipment domestically due to existing IRA incentives—and undermine efforts to relieve strain on the electricity grid. Proponents of the bill, reflecting President Trump's campaign promises, aim to repeal what they deem expensive and unnecessary clean energy subsidies from the 2022 Inflation Reduction Act to reallocate funds. A notable ambiguity exists within the bill: while it explicitly targets leased systems, it does not mention Power Purchase Agreements (PPAs), which according to EnergySage, constitute approximately 44% of current residential solar system sales, potentially leaving a significant portion of the market unaffected if this omission acts as a loophole. The overall sentiment surrounding this development is strongly negative for the solar leasing sector, with Sunrun (RUN) experiencing a particularly adverse sentiment score.

Key Decisions for Investors

• Investors holding positions in solar leasing companies, particularly Sunrun (RUN), should closely monitor the Senate's deliberations on the budget bill and any potential amendments, given the direct threat to the 30% tax credit and the forecasted 40% decline in installations.
• Consider re-evaluating exposure to companies heavily reliant on the solar leasing model versus those with significant PPA operations, as the latter may offer some insulation if the current bill language creates a loophole.
• Assess the potential cascading impact on the U.S. solar manufacturing supply chain and adjust growth expectations for companies benefiting from IRA incentives for domestic content if these primary solar installation subsidies are curtailed.
• Factor in heightened policy risk for investments in the renewable energy sector, particularly those dependent on federal subsidies that are subject to political shifts and legislative repeal.