Lifetime savings
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kWh produced
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Solar coverage
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kWh banked
System payback
—%
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$0
Most recent bill
Without solar —
Actual bill —
Saved —

Without solar = what you would have paid on the same rate with no solar generation.

Environmental impact
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tonnes CO2
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trees equiv.
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miles offset
Emissions factor: ISO-NE regional average 0.21 kg CO2/kWh.
Trees absorb ~0.06 metric tons CO2/year (EPA).
Miles based on EPA avg vehicle emissions of 0.404 kg CO2/mile.

Explore
Production & consumption
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— produced
— consumed
Solar coverage
Cumulative production
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kWh produced lifetime
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net export to grid
Avg load pattern
All available meter data (Nov 2024 onward) · 5–9pm peak highlighted
Credit account
— kWh banked
View credit detail
Bill history
Balance
— kWh banked
Credit balance history
Monthly credit flow
Credit age by earning month
Credits are consumed oldest-first (FIFO). Each credit expires 12 months after it was earned. May credits (bright green) are earned first and consumed first — October credits (amber) are earned last and survive longest into winter.
System cost & payback
Total system cost
Recovered to date
Payback progress
Amount % of cost
Monthly bill savings
Annual summary
Year Actual paid Without solar Saved
Rate plans
Supply rate ($0.127/kWh) is set by Maine PUC and is the same for all plans. You choose the delivery rate structure.
Recommendation
Total cost comparison
Year-over-year breakdown
Seasonal breakdown
Per-bill breakdown
TOU note

TOU bills use actual on-peak consumption from your 15-minute meter data (available Dec 2024 onward). On-peak fraction ranges from 11–27% depending on the month. TOU has the lowest service charge ($26.71) and performs well when credits cover most of your bill — but the $0.503/kWh on-peak rate makes it expensive in high-usage months if you can't shift load.