Solar Panel Savings in Windham, ME
Calculate how much you can save with solar panels in Windham, Maine. Based on 3.6 peak sun hours/day and 20.0¢/kWh average electricity rate.
3.6
Peak Sun Hours/Day
20.0¢
Avg Rate (¢/kWh)
10.8 yr
Payback Period
$43k
25-Year Savings
Windham Solar Overview
Calculate Your Windham Solar Savings
Windham average: $180/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
$43,141
Monthly Savings
$105
Federal Tax Credit
$5,706
Cumulative Savings vs System Cost
Cost Breakdown
| Item | Windham | 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 Windham
Sun Hours vs National Average
Windham gets 20% less sun than the national average, but high-efficiency panels compensate.
Climate Advantages
- 184 sunny days per year
- Average temperature: 42°F — cooler temps actually improve panel efficiency
- Average roof size: 1,782 sq ft — enough for a 99-panel system
Windham 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.
Maine State Incentives
Net metering; property tax exemption.
Net Metering — Central Maine Power
Central Maine Power offers net metering in Windham. Earn credits for excess solar energy sent to the grid, reducing your electric bill further.
Environmental Impact in Windham
2.6
Tons CO2 Offset/Year
43
Equivalent Trees Planted
0.6
Homes Worth of Energy
Based on 6,307 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, Maine
Windham, Maine receives an average of 3.6 peak sun hours per day, offering adequate solar resources for homeowners looking to reduce their electricity bills. With electricity rates averaging 20.0¢ per kWh from Central Maine Power, well above the national average of 16.63¢/kWh, solar panels offer exceptional savings potential.
A typical 6kW solar system in Windham produces approximately 6,307 kWh per year, saving homeowners an estimated $1,263 annually. The system pays for itself in about 10.5 years, after which you enjoy essentially free electricity for the remaining 14+ years of the system's warranty life.
Windham has a solar penetration rate of 1.3% — indicating early-stage solar adoption with tremendous growth potential as prices continue to fall. The cost of living index of 111.8 (national average: 100) means higher electricity costs, which amplifies solar savings.
Other Cities in Maine
Frequently Asked Questions
How much do solar panels cost in Windham, ME?
The average cost of a 6kW solar panel system in Windham 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; property tax exemption.
How many peak sun hours does Windham get?
Windham, ME receives an average of 3.6 peak sun hours per day and approximately 184 sunny days per year. While below the national average, solar panels can still provide significant savings due to advancing panel technology.
What is the solar payback period in Windham?
The average solar payback period in Windham is approximately 10.8 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 $43,141.
Does Windham have net metering?
Yes, Windham has access to net metering through Central Maine Power. 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, ME?
Yes, solar is a solid investment in Windham. While the 10.8-year payback is moderate, you'll still save $43,141 over 25 years. The 30% federal tax credit and above-average electricity rates help make solar financially attractive.