Residential solar refers to rooftop or ground-mounted photovoltaic systems installed on homes to generate electricity for household use and reduce utility bills. These systems typically range from 2 to 12 kW and serve single-family homes, townhouses, or small multifamily properties. Residential installations represent approximately 55 percent of the U.S. solar market and continue growing at 15 to 20 percent annually.
Installation and Economics
Most residential systems cost $2.50 to $3.50 per watt after federal tax credits, resulting in $15,000 to $42,000 for typical installations. Systems qualify for the 30 percent federal Investment Tax Credit (ITC) through 2032, plus state and local incentives. Average payback periods range from 6 to 9 years, with systems producing power for 25 to 30 years.
Practical Benefits
Homeowners reduce electricity bills by 50 to 90 percent, increase property values by 3 to 4 percent, and protect against rising energy costs. Residential systems improve grid stability during peak demand periods. Battery backup systems provide backup power during outages, adding resilience and energy independence for families.