Hydro-Québec — storage economics
Rate M (medium-power, 100 kW–5 MW) · Quebec. 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- Utility
- Hydro-Québec
- Rate class
- Rate M (medium-power, 100 kW–5 MW)
- Demand charge
- CAD $16.14 per kW-month
- Energy charge
- CAD $0.0577 per kWh
- Peak window
- Winter peak events, December 1 – March 31, 06:00–09:00 & 16:00–20:00
- Interconnection
- Typically 6–12 months (Hydro-Québec technical review)
- Incentives
- Winter peak demand response (GDP) credits; no upfront provincial BESS grant
- Effective date
- 2025-04-01
Example: 1,000 kW peak site
- Recommended system
- 300 kW / 850 kWh
- Annual demand charge savings
- $35,700
- Simple payback
- 9.7 yr
- IRR (10-yr)
- 0.7%