Global Adjustment dominates C&I electricity cost. Class A customers (peak demand ≥ 1 MW, or ≥ 500 kW in eligible sectors) are billed GA on their share of the five IESO coincident system peaks, making peak-hour dispatch the single largest BESS value driver. Class B customers see GA as a volumetric charge and monetise BESS mainly through LDC demand charges.
Industrial site with a 1,200 kW peak, 460,000 kWh per month, Level 2 tariff model.
Illustrative — site-specific analysis required.
General Service 1,000–4,999 kW
$11.90/kW-mo
General Service 50–4,999 kW
$10.70/kW-mo
General Service 50–4,999 kW
$11.20/kW-mo
General Service > 50 kW (demand billed)
$12.40/kW-mo