Ottawa residential solar price guide (2026)
Indicative ranges to help you read a quote. No public authority publishes installed solar pricing for this market, so treat every figure as a plausibility check rather than a price, and ask for the engineer's fee and the distributor's connection quotation as separate lines.
| Item | Indicative range |
|---|---|
| Installed cost per watt, before rebate | $2.40 to $3.50 per watt |
| 6 kW rooftop array, before rebate | $14,000 to $21,000 |
| 10 kW rooftop array, before rebate | $24,000 to $35,000 |
| Ontario rebate, solar panels | $1,000 per kW, up to $5,000 and 50% of cost |
| Ontario rebate, battery storage | $300 per kWh, up to $5,000 and 50% of cost |
| Structural review and stamped letter | $800 to $2,500 |
| Full engineered drawings for a building permit | $1,500 to $4,000 |
| Battery, 10 to 13 kWh, installed with transfer gear | $15,000 to $25,000 |
| String inverter replacement, year 10 to 15 | $2,500 to $5,000 |
| Monitoring review and visual inspection | $200 to $450 |
| Critter guard around the array perimeter | $600 to $1,500 |
Indicative 2026 prices before HST for the Ottawa area. The Ontario rebate figures are the programme's published rates and are conditional on the system being designed for load displacement only, which forecloses a net metering agreement. Hydro Ottawa's connection charge comes back in a property-specific service layout quotation and cannot be estimated in advance.