Solar Panel Degradation Projector — Canada

Year-by-year output and dollar value as panels age. Most modern panels lose 0.25-0.75% per year.

Province

System (kW)

Degradation (%/yr)

Premium ~0.25, typical ~0.5, budget ~0.75

Year 1 Value

—

Year 25 Value

—

25-Year Total

—

Year	Production (kWh)	Value	% of Year 1

Written & reviewed by

EnergyTools Research Team — Solar Energy Research Group

The EnergyTools Research Team compiles and verifies residential solar data from NREL, EPA, and state utility commissions. Methodology is reviewed quarterly.

Source data: NREL PVWatts V8 + Utility Rates V3 APIs
Source data: EPA FuelEconomy.gov vehicle efficiency data
Methodology reviewed quarterly

Methodology & data sources:NREL PVWatts, provincial utility commissions· Updated 2026.