Solar Panel Savings in Mountlake Terrace, WA
Calculate how much you can save with solar panels in Mountlake Terrace, Washington. Based on 3.4 peak sun hours/day and 11.3¢/kWh average electricity rate.
3.4
Peak Sun Hours/Day
11.3¢
Avg Rate (¢/kWh)
16.4 yr
Payback Period
$23k
25-Year Savings
Mountlake Terrace Solar Overview
Calculate Your Mountlake Terrace Solar Savings
Mountlake Terrace average: $102/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
$23,022
Monthly Savings
$56
Federal Tax Credit
$4,626
Cumulative Savings vs System Cost
Cost Breakdown
| Item | Mountlake Terrace | National Avg |
|---|---|---|
| Gross System Cost (6kW) | $15,420 | $17,100 |
| Federal Tax Credit (30%) | -$4,626 | -$5,130 |
| Net System Cost | $10,794 | $11,970 |
| Cost Per Watt | $2.57/W | $2.85/W |
Solar Potential in Mountlake Terrace
Sun Hours vs National Average
Mountlake Terrace gets 24% less sun than the national average, but high-efficiency panels compensate.
Climate Advantages
- 149 sunny days per year
- Average temperature: 50°F — cooler temps actually improve panel efficiency
- Average roof size: 1,770 sq ft — enough for a 98-panel system
Mountlake Terrace Solar Incentives & Programs
Federal Investment Tax Credit (ITC)
30% of total system cost deducted from federal taxes. For a $15,420 system, that's a $4,626 credit. Valid through 2032.
Washington State Incentives
Solar incentive payment program.
Net Metering — Puget Sound Energy
Puget Sound Energy offers net metering in Mountlake Terrace. Earn credits for excess solar energy sent to the grid, reducing your electric bill further.
Environmental Impact in Mountlake Terrace
2.5
Tons CO2 Offset/Year
41
Equivalent Trees Planted
0.6
Homes Worth of Energy
Based on 5,957 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 Mountlake Terrace, Washington
Mountlake Terrace, Washington receives an average of 3.4 peak sun hours per day, which, while below the national average, still makes solar a viable option with modern high-efficiency panels. With electricity rates averaging 11.3¢ per kWh from Puget Sound 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 Mountlake Terrace produces approximately 5,957 kWh per year, saving homeowners an estimated $674 annually. The system pays for itself in about 16.0 years, after which you enjoy essentially free electricity for the remaining 9+ years of the system's warranty life.
Mountlake Terrace has a solar penetration rate of 2.5% — indicating early-stage solar adoption with tremendous growth potential as prices continue to fall. The cost of living index of 110.4 (national average: 100) means higher electricity costs, which amplifies solar savings.
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Frequently Asked Questions
How much do solar panels cost in Mountlake Terrace, WA?
The average cost of a 6kW solar panel system in Mountlake Terrace is approximately $15,420 before incentives ($2.57/watt). After the 30% federal Investment Tax Credit, the net cost is about $10,794. Solar incentive payment program.
How many peak sun hours does Mountlake Terrace get?
Mountlake Terrace, WA receives an average of 3.4 peak sun hours per day and approximately 149 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 Mountlake Terrace?
The average solar payback period in Mountlake Terrace is approximately 16.4 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 $23,022.
Does Mountlake Terrace have net metering?
Yes, Mountlake Terrace has access to net metering through Puget Sound 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 Mountlake Terrace, WA?
Solar can still be worthwhile in Mountlake Terrace, especially with rising electricity rates. The 16.4-year payback means long-term savings of $23,022 over the system lifetime. The 30% federal tax credit and local incentives help make solar financially attractive.