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. Historic Low Pricing: Solar costs have reached unprecedented lows in 2025, with systems ranging from $2. Join over 8,000 people who received a free, no obligation quote in the last 30 days. Solar panels can lower your electricity bill by 75% or more, but the upfront investment is significant. This typically translates to about $2. The total price depends on your system size, location, roof type. Solar panel costs range from $16,600 to $20,500 for the average 6. With the 30% federal tax credit, a typical 6kW system costs $10,500-$14,700.