- Production = system size × a provincial yield figure (roughly 1,050–1,300 kWh per kW per year for a well-sited Canadian roof).
- Consumption is inferred from your bill and an estimated all-in electricity rate for your province.
- Savings assume net metering credits the power you offset at roughly the retail rate — capped at what you actually use.
- System cost uses a provincial installed price per watt; payback is cost divided by first-year savings, before incentives.
- CO₂ uses each province's grid emission factor — small in hydro provinces like Quebec, BC, and Manitoba; larger in Alberta and Saskatchewan.
Rates, yields, and prices are approximate 2025–26 figures and change over time. They exclude rate inflation, battery storage, and financing interest.