Solar Panel Savings in Great Falls, VA
Calculate how much you can save with solar panels in Great Falls, Virginia. Based on 4.2 peak sun hours/day and 13.0¢/kWh average electricity rate.
4.2
Peak Sun Hours/Day
13.0¢
Avg Rate (¢/kWh)
14.3 yr
Payback Period
$33k
25-Year Savings
Great Falls Solar Overview
Calculate Your Great Falls Solar Savings
Great Falls average: $117/mo
South-facing roofs produce the most energy
Add $8,000-$12,000 for whole-home battery backup
Annual Production
kWh/year
Annual Savings
per year
Net System Cost
after 30% ITC
Payback Period
break-even time
25-Year Total Savings
$32,689
Monthly Savings
$80
Federal Tax Credit
$5,706
Cumulative Savings vs System Cost
Cost Breakdown
| Item | Great Falls | National Avg |
|---|---|---|
| Gross System Cost (6kW) | $19,020 | $17,100 |
| Federal Tax Credit (30%) | -$5,706 | -$5,130 |
| Net System Cost | $13,314 | $11,970 |
| Cost Per Watt | $3.17/W | $2.85/W |
Solar Potential in Great Falls
Sun Hours vs National Average
Great Falls gets 7% less sun than the national average, but high-efficiency panels compensate.
Climate Advantages
- 198 sunny days per year
- Average temperature: 55°F — cooler temps actually improve panel efficiency
- Average roof size: 1,591 sq ft — enough for a 88-panel system
Great Falls Solar Incentives & Programs
Federal Investment Tax Credit (ITC)
30% of total system cost deducted from federal taxes. For a $19,020 system, that's a $5,706 credit. Valid through 2032.
Virginia State Incentives
Net metering; sales tax exemption.
Net Metering — Dominion Energy
Dominion Energy offers net metering in Great Falls. Earn credits for excess solar energy sent to the grid, reducing your electric bill further.
Environmental Impact in Great Falls
3.1
Tons CO2 Offset/Year
51
Equivalent Trees Planted
0.7
Homes Worth of Energy
Based on 7,358 kWh annual production with a 6kW system. EPA average: 0.417 metric tons CO2 per MWh, 10,632 kWh per US home.
Solar Energy in Great Falls, Virginia
Great Falls, Virginia receives an average of 4.2 peak sun hours per day, offering adequate solar resources for homeowners looking to reduce their electricity bills. With electricity rates averaging 13.0¢ per kWh from Dominion Energy, below the national average, but with rates rising 2-3% annually, the long-term savings are still meaningful.
A typical 6kW solar system in Great Falls produces approximately 7,358 kWh per year, saving homeowners an estimated $957 annually. The system pays for itself in about 13.9 years, after which you enjoy essentially free electricity for the remaining 11+ years of the system's warranty life.
Great Falls has a solar penetration rate of 5.5% — showing growing adoption of residential solar, with significant room for expansion. The cost of living index of 103.9 (national average: 100) is near the national average.
Other Cities in Virginia
Alexandria, VA
Chesapeake, VA
Hampton, VA
Lynchburg, VA
Newport News, VA
Norfolk, VA
Richmond, VA
Roanoke, VA
Virginia Beach, VA
Frequently Asked Questions
How much do solar panels cost in Great Falls, VA?
The average cost of a 6kW solar panel system in Great Falls is approximately $19,020 before incentives ($3.17/watt). After the 30% federal Investment Tax Credit, the net cost is about $13,314. Net metering; sales tax exemption.
How many peak sun hours does Great Falls get?
Great Falls, VA receives an average of 4.2 peak sun hours per day and approximately 198 sunny days per year. This is near the national average, providing good conditions for residential solar panels.
What is the solar payback period in Great Falls?
The average solar payback period in Great Falls is approximately 14.3 years. After payback, your solar panels generate essentially free electricity for the remaining 15-20 years of their warranty. Over 25 years, total savings can reach $32,689.
Does Great Falls have net metering?
Yes, Great Falls has access to net metering through Dominion Energy. This allows you to earn credits for excess solar energy sent to the grid, significantly improving your solar investment returns.
Is solar worth it in Great Falls, VA?
Yes, solar is a solid investment in Great Falls. While the 14.3-year payback is moderate, you'll still save $32,689 over 25 years. The 30% federal tax credit and local incentives help make solar financially attractive.