How the Reversal of the Federal Investment Tax Credit Could Impact California Homeowners Considering Solar Energy and Battery Storage.
For over a decade, the federal Investment Tax Credit (ITC) has been a cornerstone incentive driving residential solar adoption across the United States—especially in solar-friendly states like California. By offering homeowners a generous 30% tax credit on the cost of solar photovoltaic (PV) system installations, the ITC made clean energy not only environmentally responsible but financially compelling.
However, with recent federal policy shifts rolling back or reducing the ITC for residential solar projects, California homeowners face a very different landscape when weighing the decision to invest in solar panels for their properties.
What Is Changing? As of 2025, the federal government has confirmed a scheduled reduction and eventual phase-out of the residential ITC. Previously, allowing homeowners to claim 30% of their total solar system costs—including equipment, installation, and permitting—as a dollar-for-dollar tax credit. The benefit is now set to decrease to 0% on Dec. 31, 2025.
The Impact on California Homeowners
- Higher Out-of-Pocket Costs
California is already home to some of the highest housing and construction costs in the country. Without the ITC, the average homeowner installing a solar system costing $20,000 to $30,000 will not receive the 30% federal tax relief. This price difference could delay return on investment (ROI) timelines from the typical 5–6 years to potentially 10 years or more, depending on local energy rates and usage.
- Greater Dependence on State and Local Incentives
With the federal incentive shrinking, California homeowners may find themselves relying more heavily on state rebates, net energy metering (NEM) programs, and utility incentives to make solar economically attractive. But here, too, conditions have changed: California’s NEM 3.0 rules—adopted in 2023—reduced compensation rates for excess energy sold back to the grid, further affecting long-term solar savings.
- Increased Interest in Solar Leases and Power Purchase Agreements (PPAs)
Without the ITC to sweeten the deal on system ownership, more homeowners may explore third-party ownership models like solar leases or PPAs. While these arrangements allow for zero-down solar installations, they also mean the homeowner does not own the system—losing out on equity and long-term savings benefits in exchange for lower immediate costs.
- Pressure on the Solar Industry
For California’s thriving solar installation sector—one of the largest in the nation—the rollback could spell a reduction in new residential projects, forcing companies to lower prices, lay off workers, or find other products to replace the loss of solar and battery projects.
What Can Homeowners Do? For Californians still committed to solar energy, there are ways to mitigate the impact of the ITC rollback:
- Act Quickly: Install systems before further reductions take effect to lock in the current ITC percentage.
- Explore State Programs: Programs like the Self-Generation Incentive Program (SGIP) for battery storage may help improve system ROI.
- Consider Financing Options: Green loans or low-interest financing through credit unions and solar lenders can reduce upfront costs.
- Investigate Community Solar: For those unable to install rooftop panels, community solar subscriptions may offer an alternative path to renewable energy participation.
The Bigger Picture
Grid-supplied energy is still expensive and has been increasing by an average of 6% year over year. Over the last two years, PG&E has increased energy rates by over 22%. Solar and battery installs still have a positive ROI over the life of the system, saving the homeowner thousands of dollars. The savings will just not be as lucrative. We anticipate that the elimination of the IRA tax credit will hurt lower-income homeowners the most.
While federal support for residential solar may be waning, California’s commitment to a clean energy future remains strong. However, this policy shift highlights the need for robust state-level action to keep rooftop solar viable for average homeowners through incentives, financing innovations, and fair net metering structures.
Conclusion:
The reversal of the ITC may not spell the end of home solar in California—but it certainly raises the financial bar for households considering going solar. Homeowners must now make smarter, faster, and better-informed decisions to capture what incentives remain, or risk missing the window for the most cost-effective clean energy transformation.
