This article presents a clear cost framework with ranges in USD to help budgeting. Assumptions: region, specs, labor hours. Project ranges span roughly $60,000 to $350,000 depending on shell size, finishes, and site conditions.
Rooftop solar installation typically costs about $23,100, with most projects ranging from $19,100 to $23,800 depending on system size and location. Under current federal law, the Residential Solar Tax Credit (ITC) ended for customer-owned systems on December 31, 2025.
The market, estimated at $15 billion in 2025, is projected to expand at a Compound Annual Growth Rate (CAGR) of 15% from 2025 to 2033, reaching approximately $50 billion by 2033. This surge is fueled by several key factors.
With professional installation, a typical 6-kilowatt residential solar panel system in California costs $14,669. That price drops to $10,055 after using the full federal solar investment tax credit (ITC).
Here are some key cost estimates:$280 - $580 per kWh for installed costs, with larger systems potentially costing $180 - $300 per kWh1. Costs can range from $300 to $700 per kWh.
In the most common US installations, labor costs range from roughly $0. For a 6 kW residential system, this translates to about $2,400 to $6,000 in installer labor, depending on roof pitch, accessibility, and crew efficiency.
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