Commercial BESS in Montréal
Commercial buildings in Montréal are served by Hydro-Québec. Hydro-Québec Rate M and Rate L bill power demand (puissance appelée) monthly, and winter peak events (décembre–mars) carry the highest system stress. Energy is inexpensive, so BESS economics are driven almost entirely by demand management and winter peak credits.
Canadian BESS Snapshot
Last verified: 2026-06-30- City
- Montréal, Quebec
- Local distribution utility
- Hydro-Québec
- Rate class modelled
- Rate M (medium-power, 100 kW–5 MW)
- Demand charge
- CAD $16.14 per kW-month
- Peak window
- Winter peak events, December 1 – March 31, 06:00–09:00 & 16:00–20:00
- Example system
- 150 kW / 350 kWh, 2.3 h
- Example annual savings
- CAD $20,789
- Example simple payback
- 7.4 years
Montréal sizing example
- Recommended system
- 150 kW / 350 kWh
- Peak reduction
- 140 kW
- Estimated annual savings
- $20,789
- 10-year net project value
- -$5,800
Illustrative — site-specific analysis required.