Wisconsin built rate design tools for EVs and summer cooling — but left winter heating and LMI completely blank
A cell-by-cell review of every residential rate schedule at WPSC and WE Energies reveals which end uses have dedicated tariff support and which don't. The pattern is systematic: EV columns are populated, heating columns are empty.
Tariff exists
Partial / closed
Does not exist
Rate Design Tool
General Residential
EV Charging
Summer Cooling DR
Winter Heating
Heat Pump Specific
LMI Specific
Flat energy rate
Y
$0.148–$0.193
Y
Base rate
N
N
N
N
2-tier TOU
P
Rg3 (closed)
N
N
N
N
N
3-tier TOU
Y
$0.084 off-pk
N
N
N
N
N
Critical peak pricing
Y
$1.30 CPP
N
P
Summer focus
N
N
N
Technology-specific rate
N
Y
COEV-R $0.062 EV-R $0.04 cr
N
N
N
N
Smart thermostat DR
N
N
Y
BYOD $6.25/mo Jun–Sep only
N
N
N
Direct load control
N
N
Y
Rg-DC AC cycling
N
N
N
7
Green cells — rate tools deployed for general residential, EV charging, and summer cooling.
2
Amber cells — partial or limited. Closed to new customers or designed for adjacent use.
33
Red cells — no tariff exists. Concentrated in winter heating, heat pump, and LMI columns.
Wisconsin created COEV-R (EV charger rate) and BYOD (smart thermostat DR) as technology-specific programs. The same approach has not been applied to heat pumps or winter heating.
COEV-R proves a separately-metered, technology-specific rate with favorable off-peak pricing is technically and regulatorily feasible. BYOD proves smart-thermostat DR is deployable at scale (24,000 device cap at WPSC, 64,000 at WE). Neither has been extended to heating electrification.
Sources: WPSC PSCW Vol. 7, Amendments 800-802, eff. 01-01-2026: Rg-1 (E5.00), Rg3-OTOU (E5.30, closed), Rg5-OTOU (E5.50), Rg-RR (E5.60), BYOD (E5.10-E5.11), Rg-DC (E5.25-E5.28), COEV-R (E13.00-E13.02), EV-R (E13.10-E13.11). WE Energies 2026 Brochure: Rg1 (p.3), Rg2 (p.3), EV-R (p.3-4), BYOD-1 (p.4). Authorized by PSCW Orders 6690-UR-128 and 6690-ER-107. Absence confirmed by complete review of both tariff schedules.