All residential storage systems over 3 kilowatt-hours (kWh) in size are eligible for the 30% tax credit when purchased and installed by the end of this year. The most lucrative tax credit currently available is the federal solar tax credit, but it's set to. . The California Public Utilities Commission's (CPUC) Self-Generation Incentive Program (SGIP) offers incentives for installing energy storage and paired solar technology at low-income households. To support customer resiliency and grid reliability, the CPUC has authorized funding of $280 million for. . If you invest in renewable energy for your home such as solar, wind, geothermal, fuel cells or battery storage technology, you may qualify for an annual residential clean energy tax credit. The Residential Clean Energy Credit equals 30% of the costs of new, qualified clean energy property for your. . Across the U. (and in many other countries), governments and utilities offer tax credits, rebates, and incentives to encourage homeowners to go green with energy storage systems.