How Much Do Solar Panels Cost?

The Bottom Line on Solar Pricing

The cost of a solar panel system is one of the biggest factors for homeowners considering the switch to renewable energy. While there is no single "standard" price because every home is different, the industry relies on a straightforward metric to compare costs: Price Per Watt ($/W).

In the United States, the average gross cost of a residential solar installation typically ranges from $2.50 to $3.50 per watt before any tax credits or incentives are applied.

What Does That Mean for a Typical Home?

An average home requires a system size of around 6 kilowatts (6,000 watts) to 8 kilowatts (8,000 watts) to cover its electricity usage.

• A 6 kW system at $3.00/watt = $18,000 gross cost
• An 8 kW system at $3.00/watt = $24,000 gross cost

Note: These are estimated ranges. Your specific cost depends on local labor rates, equipment choices, and your roof's complexity.

The Impact of the Federal ITC

The gross cost is rarely what you actually pay. The federal government offers the Investment Tax Credit (ITC), which currently allows you to claim 30% of the total cost of your solar system as a credit against your federal income taxes. (Always consult a tax professional to ensure you have the tax liability to utilize the credit).

If you purchase a $24,000 system, a 30% tax credit equals $7,200, bringing your net cost down to $16,800.

What Drives the Cost?

A solar quote includes much more than just the panels on your roof. Here is where the money goes:

1. Equipment (Panels, Inverters, Hardware)

Equipment makes up roughly 40-50% of the total system cost. High-efficiency solar panels and advanced microinverters cost more upfront but often yield better long-term reliability and production.

2. Labor and Installation

The physical installation—mounting the racking, placing the panels, and running the electrical conduit—makes up about 10-15% of the cost. Complex roofs (multiple dormers, steep pitches, tile roofs) require more labor and increase this cost. Read more about installation costs.

3. Soft Costs (Permitting, Interconnection, Sales, Overhead)

The remainder of the cost covers the bureaucratic side of solar. The installer must design the system, submit plans to your local building department, pay permit fees, and file interconnection applications with your utility company. It also includes the company's marketing and overhead.

Batteries Add Significant Cost

If you live in an area with frequent power outages, or in a state like California where new net metering rules (NEM 3.0) make storing your own energy highly advantageous, you may want to add a solar battery. Solar batteries typically add $10,000 to $15,000 to the total cost of the project.

Explore Costs by State

Because labor rates, local incentives, and utility rules vary drastically by geography, we recommend looking at state-specific data:

• Solar Costs in California
• Solar Costs in Hawaii
• Solar Costs in Illinois

Explore Solar Panel Cost by City

Statewide ranges can be useful for orientation, but a city guide adds utility, climate, ZIP coverage, incentive, and roof considerations.

Open the local solar cost research hub →

Last reviewed: August 2026. Prices and tax credit structures are subject to change based on market conditions and federal legislation.