homeowners will see turnkey quotes in the range of $2. 60 per watt (W) before incentives, depending on equipment, roof, and market conditions. That translates to roughly $8,000–$12,000 for a smaller 3 kW system, $16,000–$24,000 for a 6 kW system, and $27,000–$36,000 for a 10. Most homeowners spend between $12,600 and $33,376 to install a complete residential solar system in 2026, with the national average at $19,873 before incentives. Your actual cost depends on your home's energy needs, roof characteristics, location and other factors, all of which we'll break down in. Historic Low Pricing: Solar costs have reached all-time lows at $2. Combined with the tax credit, homeowners can achieve payback periods of just 6-10 years. After this credit, your actual cost drops to approximately $20,754 for a typical system. 3 GWac) of energy storage onto the electric grid in 2024—bringing cumulative capacity to 96. Published: February 2026 Solar panels cost about $21,816 on average when purchased with cash or $26,004 when purchased with a loan for a 7.
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