Solar panels in Charlottetown, Prince Edward Island

Charlottetown is one of the best cities in Canada for residential solar energy. Solar panels in Charlottetown produce an average of 1,103 kWh of electricity per year for every 1 kW of solar capacity installed. This means a typical 10 kW residential system generates approximately 11,030 kWh annually – enough to offset most or all of a household’s electricity consumption. The Gulf of St. Lawrence maritime climate provides abundant sunlight, and PEI’s relatively flat terrain means fewer shading issues compared to other provinces. Cold winter temperatures actually improve panel efficiency, helping maintain strong year-round production.

Maritime Electric charges 14.37¢/kWh for the first 2,000 kWh consumed per month, with a lower rate of 11.42¢/kWh for additional consumption, plus a $24.57/month service charge (effective March 1, 2025). PEI has the 6th highest electricity costs among Canadian provinces, and rates have increased over 12% in recent years with further increases expected. By going solar, Charlottetown homeowners can save approximately $1,500 per year on electricity costs. Over a 25-year system lifespan, those savings grow as electricity rates continue to rise.

Charlottetown residents benefit from PEI’s Net Metering program, which provides full 1:1 credits at the retail electricity rate for excess solar energy exported to the grid. Systems up to 100 kW are eligible, and credits are applied to your Maritime Electric bill with annual expiry on October 31st. The PACE Atlantic financing program is available in Charlottetown, offering 0% interest loans over 15 years for up to $40,000 or 15% of property value – making solar accessible with no upfront cost. The efficiencyPEI Solar Electric Rebate Program ($0.50/watt, max $5,000 for homeowners) has been paused since September 5, 2025, pending 2026-27 funding approval – check efficiencypei.ca for updates on resumption. The Energy Efficiency Loan Program (up to 100% of cost at 5% over up to 15 years) currently requires efficiencyPEI rebate pre-approval, which is also paused. The federal Canada Greener Homes Grant and Loan are both closed to new applicants.

Most provinces charge you more per kilowatt-hour as you use more. Prince Edward Island does the opposite, and it has a direct consequence for solar that almost nobody mentions.

Maritime Electric charges 14.37 cents per kilowatt-hour for the first 2,000 kWh in a billing period and 11.42 cents for everything above that, effective 1 March 2025. It is a declining block: the more you consume, the cheaper the marginal kilowatt-hour becomes.

Now think about what solar does. It reduces the total you draw from the grid, which means it removes kilowatt-hours from the top of your consumption first — and on PEI the top is the cheap tier. A Charlottetown household that regularly exceeds 2,000 kWh in a month is therefore displacing power at 11.42 cents to begin with, not at 14.37. Only once generation has pulled the household below the 2,000 kWh threshold does it start displacing the more expensive first block.

This is the mirror image of British Columbia, where the second tier is dearer and solar displaces the expensive power first. It means a savings estimate built on Charlottetown’s headline 14.37-cent rate will overstate the return for a high-consumption home, and it is a fair question to put to any installer: which rate did you assume, and for how many of the kilowatt-hours?

There is a second fixed element. The service charge of $24.57 a month — about $295 a year — is payable regardless of how much you generate, so no system will take a PEI bill to zero. At 1,103 kWh per kW a year and a payback of 12 to 16 years, these are the details that decide where in that range you land.

• View Solar Panel Pricing →
• Check Available Rebates →
• Prince Edward Island Solar Overview →

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