A 3,000 square foot home in Virginia typically uses about 1,416 kWh per month at the state average rate of 13.9¢/kWh (EIA). With 4.7 peak sun hours per day, most homeowners need a 12.1 kW solar system — roughly 31 panels at 400W. After the 30% federal ITC, net cost is about $25,400, with 12.3-year payback and $60,700+ in estimated 25-year savings.
Content roles: This page is your Virginia-specific sizing decision for 3,000 sq ft. For national methodology and roof/orientation depth, see the 3,000 sq ft national guide. For bill-based sizing, see $250/month (~$197/mo equivalent in Virginia). Policy depth: Virginia solar data.
⚡ System Size
How Many Solar Panels for a 3,000 sq ft House in Virginia?
Virginia electricity rates and sun hours change panel count versus the US average:
System size (kW) = Annual kWh ÷ (Peak sun hours × 365 × 0.82)
For 3,000 sq ft in Virginia:
Estimated monthly usage: ~1,416 kWh
Peak sun hours: 4.7 h/day
System size:12.1 kW (~31 × 400W panels)
Metric
Virginia
US average
Rate
13.9¢/kWh
16.3¢/kWh
Sun hours
4.7 h/day
4.5 h/day
System size
12.1 kW
12.6 kW
Panels (400W)
31
32
Virginia requires a smaller system than the national average for the same square footage. Use our solar system size calculator with your actual utility bills for a precise ZIP-level result.
Find your exact solar savings
Enter your ZIP code for a personalized estimate using your state's electricity rate and sun hours.
💰 System Cost
What Does Solar Cost for a 3,000 sq ft Home in Virginia After the ITC?
At $3.00/W installed (SEIA 2026), a 12.1 kW system in Virginia costs about $36,200 before incentives. The 30% ITC saves ~$10,860, for $25,400 net cost.
📈 Payback Period
How Long Is Solar Payback on a 3,000 sq ft Home in Virginia?
A 12.1 kW system saving ~$2,055/year pays back in about 12.3 years after the ITC. At 3% rate escalation, 25-year utility spend totals ~$86,100 vs $25,400 net solar — $60,700+ lifetime advantage.
Solar vs utility company · 25-year comparison
Total cost of staying on the grid vs owning solar for a $300/month bill (national average assumptions).
Virginia’s Solar Energy Development and Energy Storage Authority (SEDA) provides low-interest loans for solar installations. Dominion Energy Virginia and APCo offer net metering programs. Virginia’s Clean Economy Act set a 100% renewable electricity target by 2045, driving strong utility solar development. Income-qualified residents may access the Low Income Utility Access Program.
At Virginia's average rate of 13.9¢/kWh and 4.7 peak sun hours, a 3,000 sq ft home (~1,416 kWh/month) typically needs a 12.1 kW system — about 31 panels at 400W. See the [national 3,000 sq ft guide](/guides/how-much-do-solar-panels-cost-3000-sq-ft-home/) for methodology.
A 12.1 kW system in Virginia costs roughly $36,200 installed before incentives. The 30% federal ITC reduces net cost to about $25,400. Virginia's Solar Energy Development and Energy Storage Authority (SEDA) provides low-interest loans for solar installations. Dominion Energy Virginia and APCo offer net metering programs. Virginia's Clean Economy Act ...
At $25,400 net cost and ~$2,055/year in bill savings, simple payback in Virginia is about 12.3 years.
Most Virginia homeowners in this size range see **$60,700+** estimated 25-year savings vs utility power. Equivalent monthly bill: **~$197** — compare the [$250/month bill guide](/guides/solar-panels-250-month-bill/) for bill-based sizing.
The US average needs a 12.6 kW system at 11.0-year payback. Virginia needs 12.1 kW with 12.3-year payback at 13.9¢/kWh and 4.7 sun hours.
$250/month electric bill by state
System size and payback vary by electricity rate and sun hours — see your state.