The table below shows the residential solar panel cost for common system sizes, using the $2.42 to $3.00 per watt installed range we see on Virginia homes in 2026. Independent price trackers report a similar Virginia average; EnergySage put it at about $2.42 to $2.59 per watt in mid-2026. It is a quick way to estimate the average cost of solar panels for a house before you get a quote.
| System size | Yearly production (approx.) | Installed cost before incentives |
|---|---|---|
| 6 kW | 7,500 kWh | $14,520 to $18,000 |
| 8 kW | 10,000 kWh | $19,360 to $24,000 |
| 10 kW | 12,500 kWh | $24,200 to $30,000 |
| 12 kW | 15,000 kWh | $29,040 to $36,000 |
| 14 kW | 17,500 kWh | $33,880 to $42,000 |
Most Virginia homes we work on need a system between 10 kW and 14 kW. These prices do not include battery storage, a main electrical panel upgrade or roof work, which are priced separately. Production assumes about 1,250 kWh per installed kW each year, typical for an unshaded, south-facing roof in central Virginia.
Your solar payback period is the number of years it takes for the money you save on electricity to equal what you paid for the system. With the federal credit gone, payback in Virginia is a little longer than many older articles suggest. Here is a worked example using 2026 rules.
| Assumption | Value used |
|---|---|
| System size | 10 kW |
| Installed price | $2.70 per watt, so $27,000, paid in cash |
| Production | About 12,500 kWh in year one (1,250 kWh per kW) |
| Electricity rate | 15 cents per kWh in year one |
| Rate increases | 3% per year |
| Panel output loss | 0.5% per year |
| Incentives | No federal credit. No property tax on the system. REC income not counted. |
| If your electricity rate is | Payback for the same $27,000 system |
|---|---|
| 13 cents per kWh | About 14.1 years |
| 15 cents per kWh | About 12.5 years |
| 17 cents per kWh | About 11.2 years |
The first savings you see are on your power bill. When you go solar, energy from your panels replaces energy you would otherwise buy from Appalachian Power or Dominion. Every kilowatt-hour your system produces and your home uses is one you no longer pay for. If your system produces 500 kWh in a month and your home uses it, that is 500 kWh less on your bill.
When you go solar, your panels will provide most or all of the energy your home needs. This means that your power bill will be significantly reduced, or even eliminated. Most homeowners find that their total monthly energy payments after going solar (combined cost of their solar payments and their reduced power bill) are close to, or often less than, their monthly power bill before solar. Our goal is for solar to result in no added cost for you, and ideally cost less each month than you’re already paying for your utility bill.
Plus, your solar payment has a fixed rate. As Virginia utilities continue to raise their power rates, solar homeowners will find themselves paying less each month for solar than they would have been paying their utility company. These savings will build up over time, providing homeowners with significant return on investment (ROI).
Solar can also add to your home’s value when you sell. A 2019 Zillow study found that homes with solar sold for 4.1% more on average nationwide. Owned systems carry that value; leased systems usually do not. Our guide to how solar panels affect your home’s resale value covers the Virginia picture.Most residential systems in Virginia cost between $2.42 and $3.00 per watt installed in 2026. A typical 10 kW system costs roughly $24,200 to $30,000 before incentives, and because the federal tax credit ended in 2025, a homeowner who buys a system pays close to that amount. Your price depends on system size, your roof, the equipment and whether you add a battery.
For a cash purchase in 2026, payback in Virginia usually runs about 11 to 14 years, depending on your electricity rate, roof and system size. In our worked example, a 10 kW system costing $27,000 pays back in about 12.5 years at a 15 cent electricity rate. Panels are typically warrantied for 25 years or more, so most of their working life comes after payback.
Not for homeowners who buy their own system. The 30% residential clean energy credit (Section 25D) ended on 31 December 2025, and systems had to be installed by that date to qualify. If your system was installed in 2025, speak to your tax preparer about claiming it. Lease and power purchase agreement providers may still claim a business credit, but that credit belongs to them, not to you.
No. Virginia does not offer a state income tax credit for residential solar. What Virginia does offer is net metering through Appalachian Power and Dominion, a full property tax exemption for home systems of 25 kW DC or less, and the option to sell the renewable energy certificates your system produces.
Owned solar systems generally do. A 2019 Zillow study found that homes with solar sold for 4.1% more on average nationwide, and many buyers value lower power bills. Leased systems usually do not add the same value and can complicate a sale. Keep your installation records, warranties and production history to show buyers and appraisers.
Not on a typical home system. Under Virginia law, residential solar systems of 25 kW DC or less are wholly exempt from state and local taxation. For larger systems the exemption depends on whether your county or city has adopted an ordinance, so check with your commissioner of the revenue.
Yes. A battery adds to the upfront cost, often by $15,000 to $25,000 depending on capacity, and it usually lengthens payback. Most homeowners add a battery for backup power during outages rather than for savings. A battery can usually be added to an existing solar system later.
