ENMAX Power — storage economics
Rate D21 General Service (demand billed) · Alberta. Alberta's energy-only pool exposes C&I sites to volatile hourly pool prices, while distribution and transmission (DTS/rate rider) charges are billed on monthly billing demand. BESS value stacks arbitrage against pool price volatility with demand-charge avoidance.
Canadian BESS Snapshot
Last verified: 2026-06-30- Utility
- ENMAX Power
- Rate class
- Rate D21 General Service (demand billed)
- Demand charge
- CAD $13.60 per kW-month
- Energy charge
- CAD $0.0910 per kWh
- Peak window
- Monthly billing demand — no fixed TOU window (pool price driven)
- Interconnection
- Typically 5–10 months (AESO + wires owner)
- Incentives
- Pool price arbitrage; federal Clean Technology ITC (30%)
- Effective date
- 2025-01-01
Example: 1,000 kW peak site
- Recommended system
- 300 kW / 850 kWh
- Annual demand charge savings
- $35,700
- Simple payback
- 8.8 yr
- IRR (10-yr)
- 2.7%