Solar Payback in Charlottetown 2026
Charlottetown solar systems typically pay for themselves in 10 years. See the math by system size, with Maritime Electric rates and available Prince Edward Island rebates.
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Short answer
Solar in Charlottetown typically pays back in 10 years for a right-sized 6 to 10 kW residential system. Payback varies with your Maritime Electric rate (average 16.5¢/kWh), 1,920 annual sun hours in Charlottetown, net system cost after Prince Edward Island rebates, and how much production you self-consume. See system-by-system math below.
10 yrs
Typical Payback
16.5¢/kWh
Electricity Rate
1,920
Sun Hours/Year
$3.40/W
Installed Cost
How Charlottetown Solar Payback Is Calculated
Payback (years) = Net System Cost / Annual Bill Savings
Net system cost is your installed cost minus available rebates. Annual bill savings equal annual production times your effective rate, adjusted for self-consumption. In Charlottetown, we use 1,920 sun hours, 14% capacity factor, Maritime Electric rate 16.5¢/kWh, and 85% self-consumption.
Assumptions used on this page
- • Installed cost mid-range: $3.40 per watt
- • Annual production: 14% capacity factor times 8,760 hours per year
- • Electricity rate: 16.5¢/kWh flat (does not model TOU or ULO)
- • Rebate: Efficiency PEI $1.00/W up to $10,000
- • Self-consumption ratio: 85%
- • No rate escalation modelled (real payback is shorter with rate increases)
Charlottetown Payback by System Size
| System | System cost | Rebate | Net cost | Annual savings | Payback |
|---|---|---|---|---|---|
| 4 kW | $13,600 | $4,000 | $9,600 | $688/yr | 14 yrs |
| 6 kW | $20,400 | $6,000 | $14,400 | $1,032/yr | 14 yrs |
| 8 kW | $27,200 | $8,000 | $19,200 | $1,376/yr | 14 yrs |
| 10 kW | $34,000 | $10,000 | $24,000 | $1,720/yr | 14 yrs |
| 12 kW | $40,800 | $10,000 | $30,800 | $2,064/yr | 14.9 yrs |
Estimates assume 14% capacity factor, 16.5¢/kWh, 85% self-consumption, no rate escalation. Actual payback varies with roof orientation, shading, usage pattern, and financing.
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Related Resources
Solar Cost in Charlottetown
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Learn more— Sources: NRCan, Maritime Electric published rates.