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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 6kW system produces 7,200 kWh/year and saves an estimated $1,901/year at current Central Maine Power rates.
Net System Cost
Based on Central Maine Power rate of $0.26/kWh
System Cost
$19,100
State Incentive
$0
Net Cost
$19,100
Annual Production
7,200 kWh
Annual Savings
$1,901
Payback Period
10 years
25-Year Total Savings
$69,302
A 6kW solar system in Westbrook, Maine uses approximately 15 panels (400W each) and requires about 108 square feet of unshaded south-facing roof space. This size is typically a good fit for small to mid-size homes using 500-700 kWh per month. At the current Central Maine Power rate of $0.26/kWh, which is 57% above the national average, a 6kW system produces approximately 7,200 kWh per year and saves $1,901 annually.
The total cost for a 6kW system in Westbrook is approximately $19,100 before incentives. The estimated payback period is 10 years. Over 25 years, you can expect total savings of $69,302.
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 6kW 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
Current~15 panels · ~108 sq ft roof · Best for small to mid-size homes using 500-700 kWh per month
8kW System
~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 $1,901/year with a 6kW system.