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NuWatt designs, installs, and manages solar, battery, heat pump, and EV charger systems across 9 states. One company, one warranty, one point of contact.
Get a Free QuoteA 8kW system produces 9,600 kWh/year and saves an estimated $2,534/year at current Central Maine Power rates.
Net System Cost
Based on Central Maine Power rate of $0.26/kWh
System Cost
$24,400
State Incentive
$0
Net Cost
$24,400
Annual Production
9,600 kWh
Annual Savings
$2,534
Payback Period
9.6 years
25-Year Total Savings
$92,402
A 8kW solar system in Westbrook, Maine uses approximately 20 panels (400W each) and requires about 144 square feet of unshaded south-facing roof space. This size is typically a good fit for average-size homes using 700-1,000 kWh per month. At the current Central Maine Power rate of $0.26/kWh, which is 57% above the national average, a 8kW system produces approximately 9,600 kWh per year and saves $2,534 annually.
The total cost for a 8kW system in Westbrook is approximately $24,400 before incentives. The estimated payback period is 9.6 years. Over 25 years, you can expect total savings of $92,402.
The federal residential solar tax credit (Section 25D) expired at the end of 2025, so state and utility incentives are now the primary way to reduce your solar costs. Central Maine Power offers net metering, so any excess energy your 8kW system produces earns bill credits. NuWatt Energy handles the entire installation process in Westbrook, from system design through Central Maine Power interconnection.
4kW System
~10 panels · ~72 sq ft roof · Best for apartments, condos, or small homes with low electricity usage
6kW System
~15 panels · ~108 sq ft roof · Best for small to mid-size homes using 500-700 kWh per month
8kW System
Current~20 panels · ~144 sq ft roof · Best for average-size homes using 700-1,000 kWh per month
10kW System
~25 panels · ~180 sq ft roof · Best for large homes or households with above-average electricity usage
15kW System
~38 panels · ~270 sq ft roof · Best for very large homes, all-electric households, or homes with EVs and heat pumps
Investor-Owned Utility · $0.26/kWh
Rate
$0.26/kWh
Net Metering
Available
Solar Rebate
None
NuWatt Energy serves Westbrook with dedicated local crews. No lead sharing, no middlemen. Save $2,534/year with a 8kW system.