Solar Panel Savings in Windham, NH
Calculate how much you can save with solar panels in Windham, New Hampshire. Based on 4.3 peak sun hours/day and 21.3¢/kWh average electricity rate.
4.3
Peak Sun Hours/Day
21.3¢
Avg Rate (¢/kWh)
7.8 yr
Payback Period
$55k
25-Year Savings
Windham Solar Overview
Calculate Your Windham Solar Savings
Windham average: $191/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
$54,721
Monthly Savings
$134
Federal Tax Credit
$5,202
Cumulative Savings vs System Cost
Cost Breakdown
| Item | Windham | National Avg |
|---|---|---|
| Gross System Cost (6kW) | $17,340 | $17,100 |
| Federal Tax Credit (30%) | -$5,202 | -$5,130 |
| Net System Cost | $12,138 | $11,970 |
| Cost Per Watt | $2.89/W | $2.85/W |
Solar Potential in Windham
Sun Hours vs National Average
Windham gets 4% less sun than the national average, but high-efficiency panels compensate.
Climate Advantages
- 185 sunny days per year
- Average temperature: 45°F — cooler temps actually improve panel efficiency
- Average roof size: 1,838 sq ft — enough for a 102-panel system
Windham Solar Incentives & Programs
Federal Investment Tax Credit (ITC)
30% of total system cost deducted from federal taxes. For a $17,340 system, that's a $5,202 credit. Valid through 2032.
New Hampshire State Incentives
Residential solar rebate program.
Net Metering — Eversource
Eversource offers net metering in Windham. Earn credits for excess solar energy sent to the grid, reducing your electric bill further.
Environmental Impact in Windham
3.1
Tons CO2 Offset/Year
52
Equivalent Trees Planted
0.7
Homes Worth of Energy
Based on 7,534 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 Windham, New Hampshire
Windham, New Hampshire receives an average of 4.3 peak sun hours per day, offering adequate solar resources for homeowners looking to reduce their electricity bills. With electricity rates averaging 21.3¢ per kWh from Eversource, well above the national average of 16.63¢/kWh, solar panels offer exceptional savings potential.
A typical 6kW solar system in Windham produces approximately 7,534 kWh per year, saving homeowners an estimated $1,602 annually. The system pays for itself in about 7.6 years, after which you enjoy essentially free electricity for the remaining 17+ years of the system's warranty life.
Windham has a solar penetration rate of 7.6% — showing growing adoption of residential solar, with significant room for expansion. The cost of living index of 109.6 (national average: 100) is near the national average.
Other Cities in New Hampshire
Frequently Asked Questions
How much do solar panels cost in Windham, NH?
The average cost of a 6kW solar panel system in Windham is approximately $17,340 before incentives ($2.89/watt). After the 30% federal Investment Tax Credit, the net cost is about $12,138. Residential solar rebate program.
How many peak sun hours does Windham get?
Windham, NH receives an average of 4.3 peak sun hours per day and approximately 185 sunny days per year. This is near the national average, providing good conditions for residential solar panels.
What is the solar payback period in Windham?
The average solar payback period in Windham is approximately 7.8 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 $54,721.
Does Windham have net metering?
Yes, Windham has access to net metering through Eversource. 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 Windham, NH?
Absolutely. With a 7.8-year payback period and $54,721 in 25-year savings, solar is an excellent investment in Windham. The 30% federal tax credit and above-average electricity rates help make solar financially attractive.