Electric Tankless Water Heater in Madison — $980/yr to Run (14.9¢/kWh)
Your electric tankless water heater in Madison costs about $82/month at 14.9¢/kWh. See daily, monthly, and yearly costs, plus tips to cut your bill.
Madison, WI Electricity Rate
14.9¢/kWh
Utility: Madison Gas & Electric (MGE)
+15% vs national avg
National avg: 13.0¢/kWh
Daily Cost
$2.69
18.0 kWh/day
Monthly Cost
$81.69
548 kWh/mo
Annual Cost
$980
6,570 kWh/yr
Lifetime (20yr)
$19,605
energy only
Monthly Cost Breakdown in Madison
| Period | kWh | Madison Cost | National Avg | Difference |
|---|---|---|---|---|
| Daily | 18.0 | $2.69 | $2.34 | +$0.35 |
| Weekly | 126.0 | $18.80 | $16.38 | +$2.42 |
| Monthly | 547.5 | $81.69 | $71.17 | +$10.51 |
| Quarterly | 1642.5 | $245.06 | $213.53 | +$31.54 |
| Annual | 6570.0 | $980.24 | $854.10 | +$126.14 |
Customize Your Electric Tankless Water Heater Cost
Adjust usage hours and electricity rate to calculate your exact cost in Madison.
Daily
$2.69
Monthly
$81.69
Annual
$980
20-Year
$19,605
Energy Saving Tips for Electric Tankless Water Heater in Madison
- ✓Madison electricity rates are 15% above the national average — energy efficiency matters more here.
- ✓An ENERGY STAR Electric Tankless Water Heater in Madison saves ~$235/year compared to standard models.
- ✓A smart Electric Tankless Water Heater with scheduling optimization can save ~$147/year at Madison rates.
- ✓Install point-of-use units for remote fixtures
- ✓Size properly for peak demand
- ✓Consider electrical upgrade
ENERGY STAR Savings: Upgrading to an ENERGY STAR Electric Tankless Water Heater in Madison saves approximately $235/year at local rates — $4,705 over the appliance lifetime.
Highest-Cost Appliances in Madison, WI
See which appliances cost the most to run at Madison's 14.9¢/kWh electricity rate.
Level 2 EV Charger (240V)
Transportation · 7,200W
$1,934/yr
$161.14/mo
Electric Furnace
HVAC · 10,000W
$1,343/yr
$111.90/mo
EV Charger (Level 2)
Garage · 7,200W
$967/yr
$80.57/mo
Boiler (Electric)
HVAC · 6,000W
$806/yr
$67.14/mo
Electric Water Heater (Tank)
Water Heating · 4,500W
$735/yr
$61.27/mo
Water Heater (Tank Electric)
Water Heating · 4,500W
$735/yr
$61.27/mo
Heat Pump
HVAC · 2,400W
$573/yr
$47.74/mo
Hot Tub / Spa
Pool & Spa · 3,000W
$537/yr
$44.76/mo
Electric Tankless Water Heater Cost in Other Wisconsin Cities
Electric Tankless Water Heater Energy Cost FAQ — Madison, WI
Understanding Electric Tankless Water Heater Energy Costs in Madison, WI
Madison is a mid-sized Wisconsin city where residential electricity rates from Madison Gas & Electric (MGE) are shaped by regional energy supply and local demand patterns. Running a high-draw appliance like the Electric Tankless Water Heater (18,000W) at Madison's rate of 14.9¢/kWh costs approximately $980 per year — $126 more than the national average of $854.
Madison rates are 15% above the national average — a modest premium that adds $126 per year to Electric Tankless Water Heater operating costs. Over the appliance's 20-year lifespan, that's $2,523 in cumulative extra spending versus the national average.
Madison's cost of living index of 92 is below the national average, and electricity costs reflect that affordability. The Electric Tankless Water Heater adds $81.69/month to a typical bill of $134. Upgrading to an ENERGY STAR Electric Tankless Water Heater can cut energy use by up to 24%, saving approximately $235 per year at Madison rates.
Madison's moderate climate (avg 57.4°F) helps keep seasonal energy cost swings manageable for most appliances. A Electric Tankless Water Heater produces approximately 2.1 tons of CO2 annually at typical usage. Madison residents can reduce this footprint by choosing an ENERGY STAR certified unit, optimizing usage patterns, or investing in solar — see our solar savings calculator for Madison.
Compare All Energy Costs in Madison
See energy costs for 178+ household appliances at Madison's local electricity rate.