Home battery systems or portable power stations that store at least 3 kilowatt-hours (kWh) of energy can qualify for the 30% tax credit, whether they are used as standalone storage or integrated with other systems. Capacity Requirement: Minimum 3 kWh.
As of September 2024, 18 states have sales tax exemptions on buying, and the installation of, new residential and commercial solar power systems. The incentive reduces the upfront costs of going solar.