Load Class |
Status |
Typical Load |
| 1A (Water Heater 4hr) |
Uncontrolled |
Small capacity residential water heaters |
| 1B (Water Heater 6hr) |
Uncontrolled |
Large capacity residential water heaters |
| 2 (Interruptible Heat) |
Uncontrolled |
Winter dual-fuel heat with 12hr backup |
| 2W (Interruptible Heat Only) |
Uncontrolled |
Winter only dual-fuel heat with auto backup |
| 3-DLY (Off Peak Storage 7-day) |
Uncontrolled |
Thermal storage systems peak avoidance 7 days/week |
| 3-MF (Off Peak Storage M-F) |
Uncontrolled |
Thermal storage systems peak avoidance Mon-Fri |
| 3-A1 (Off Peak Large Storage) |
Uncontrolled |
High capacity thermal storage systems peak avoidance Mon-Fri |
| 3-WP (Off Peak Winter PM Storage) |
Uncontrolled |
Thermal storage systems winter only, evening only peak avoidance Mon-Fri |
| 3-EV (Off Peak EV) |
Uncontrolled |
Electric vehicles peak avoidance Mon-Fri |
| 4B (Interruptible Heat) |
Uncontrolled |
Winter dual-fuel heat with 4hr backup |