Tankless Water Heater (Electric) in Chicago — $547/yr to Run (16.6¢/kWh)
Your tankless water heater (electric) in Chicago costs about $46/month at 16.6¢/kWh. See daily, monthly, and yearly costs, plus tips to cut your bill.
Chicago, IL Electricity Rate
16.6¢/kWh
Utility: ComEd (Commonwealth Edison)
+28% vs national avg
National avg: 13.0¢/kWh
Daily Cost
$1.50
9.0 kWh/day
Monthly Cost
$45.55
274 kWh/mo
Annual Cost
$547
3,285 kWh/yr
Lifetime (20yr)
$10,932
energy only
Monthly Cost Breakdown in Chicago
| Period | kWh | Chicago Cost | National Avg | Difference |
|---|---|---|---|---|
| Daily | 9.0 | $1.50 | $1.17 | +$0.33 |
| Weekly | 63.0 | $10.48 | $8.19 | +$2.29 |
| Monthly | 273.8 | $45.55 | $35.59 | +$9.96 |
| Quarterly | 821.3 | $136.66 | $106.76 | +$29.89 |
| Annual | 3285.0 | $546.62 | $427.05 | +$119.57 |
Customize Your Tankless Water Heater (Electric) Cost
Adjust usage hours and electricity rate to calculate your exact cost in Chicago.
Daily
$1.50
Monthly
$45.55
Annual
$547
20-Year
$10,932
Energy Saving Tips for Tankless Water Heater (Electric) in Chicago
- ✓Chicago electricity rates are 28% above the national average — energy efficiency matters more here.
- ✓An ENERGY STAR Tankless Water Heater (Electric) in Chicago saves ~$109/year compared to standard models.
- ✓A smart Tankless Water Heater (Electric) with scheduling optimization can save ~$82/year at Chicago rates.
- ✓Provides hot water on demand with no standby loss
- ✓Flush annually to remove scale
- ✓Requires dedicated electrical circuit
ENERGY STAR Savings: Upgrading to an ENERGY STAR Tankless Water Heater (Electric) in Chicago saves approximately $109/year at local rates — $2,186 over the appliance lifetime.
Highest-Cost Appliances in Chicago, IL
See which appliances cost the most to run at Chicago's 16.6¢/kWh electricity rate.
Level 2 EV Charger (240V)
Transportation · 7,200W
$2,157/yr
$179.71/mo
Electric Furnace
HVAC · 10,000W
$1,498/yr
$124.80/mo
Electric Tankless Water Heater
Water Heating · 18,000W
$1,093/yr
$91.10/mo
EV Charger (Level 2)
Garage · 7,200W
$1,078/yr
$89.86/mo
Boiler (Electric)
HVAC · 6,000W
$899/yr
$74.88/mo
Electric Water Heater (Tank)
Water Heating · 4,500W
$820/yr
$68.33/mo
Water Heater (Tank Electric)
Water Heating · 4,500W
$820/yr
$68.33/mo
Heat Pump
HVAC · 2,400W
$639/yr
$53.25/mo
Tankless Water Heater (Electric) Cost in Other Illinois Cities
| City | Rate | Annual Cost | vs Chicago |
|---|---|---|---|
| Chicago (current) | 16.6¢ | $547 | — |
| Aurora | 15.0¢ | $492 | $-55 |
| Joliet | 14.4¢ | $473 | $-74 |
| Naperville | 14.6¢ | $481 | $-65 |
| Rockford | 17.0¢ | $559 | +$13 |
| Elgin | 13.6¢ | $446 | $-101 |
| Springfield | 15.9¢ | $521 | $-26 |
| Peoria | 16.9¢ | $554 | +$7 |
| Waukegan | 14.3¢ | $470 | $-77 |
Methodology & Energy Data Sources for Chicago
How we calculate tankless water heater (electric) energy costs in Chicago, IL: Cost estimates use the standard formula: Annual Cost = (Wattage ÷ 1000) × Hours per Day × Days per Year × Local kWh Rate. We model regional electricity rate variation using EIA monthly data, which captures rate differences between investor-owned utilities, municipal providers, and rural electric cooperatives.
- Appliance wattage sourced from ENERGY STAR product database, manufacturer spec sheets, and DOE residential appliance test data.
- Local kWh rate for Chicago reflects Illinois averages from EIA Form 861 (utility sales data). Rates vary by season (typically 10-20% summer premium) and time-of-use in many Illinois utilities.
- Usage patterns derived from RECS (Residential Energy Consumption Survey), EIA's official survey of US household energy use.
- Carbon footprint calculated using EPA eGRID emissions factors specific to your regional grid mix in Illinois.
Authoritative US energy data sources:
- EIA Electric Power Monthly — official US electricity rate data by state
- EIA Residential Energy Consumption Survey (RECS) — household appliance usage patterns
- ENERGY STAR Product Finder — efficiency ratings for tankless water heater (electric)s
- DOE Energy Saver — Electricity — official tips and appliance comparison
- EPA eGRID — Regional Emissions — carbon intensity by grid region
- EIA State Energy Profiles — Illinois — generation mix, prices, and consumption
Disclaimer: Energy costs are estimates based on average appliance usage and Illinois state-level kWh rates. Your actual costs depend on your specific utility provider, rate plan (flat, time-of-use, demand), local fees, taxes, and renewable energy credits. Check your utility bill for exact rates. For energy efficiency upgrades, consult your local utility's rebate programs and federal tax credits via ENERGY STAR Federal Tax Credits.
Reviewed by Brazora Monk · Last updated 2026 · EIA data current as of latest monthly release
Find Your Utility, Rate Plan & Incentives in Chicago
The Illinois state-average kWh rate shown above is a baseline — your actual cost depends on your specific utility provider, rate plan, and time-of-use schedule. Plus you may be missing rebates that pay for ENERGY STAR replacements:
Each utility has its own rate plans (flat, TOU, demand):
- • EIA — Find Your Utility (by ZIP)
- • EIA Illinois State Profile
- • Time-of-use can save 20-40% if you shift heavy use to off-peak
Inflation Reduction Act provides ongoing credits:
- • ENERGY STAR Federal Tax Credits
- • 30% on solar/battery storage through 2032
- • Up to $2,000 heat pump credit annually
- • DOE — Federal Rebate Programs
State + utility-specific rebates stack with federal:
- • DSIRE — Illinois Incentive Database
- • DOE State Energy Program
- • Many utilities offer $50-500 rebates on ENERGY STAR appliances
Replace efficient = save 25-50% kWh:
NABCEP-certified installers for solar/battery: NABCEP Certified Professionals Directory. Required for many state incentives.
Tankless Water Heater (Electric) Energy Cost FAQ — Chicago, IL
Understanding Tankless Water Heater (Electric) Energy Costs in Chicago, IL
In a major metro like Chicago, electricity demand is high and rates reflect the cost of maintaining infrastructure for 2.7 million residents. Running a high-draw appliance like the Tankless Water Heater (Electric) (18,000W) at Chicago's rate of 16.6¢/kWh costs approximately $547 per year — $120 more than the national average of $427.
Electricity in Chicago is significantly more expensive than the national average — 28% higher. For a Tankless Water Heater (Electric) used 0.5 hours per day, this rate premium adds up to $120 in extra annual costs. Energy-efficient models and usage habits have an outsized impact in high-rate markets like this.
Chicago's cost of living index of 87 is below the national average, and electricity costs reflect that affordability. The Tankless Water Heater (Electric) adds $45.55/month to a typical bill of $141. Upgrading to an ENERGY STAR Tankless Water Heater (Electric) can cut energy use by up to 20%, saving approximately $109 per year at Chicago rates.
Chicago's moderate climate (avg 45°F) helps keep seasonal energy cost swings manageable for most appliances. A Tankless Water Heater (Electric) produces approximately 2.35 tons of CO2 annually at typical usage. Chicago 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 Chicago.
Compare All Energy Costs in Chicago
See energy costs for 178+ household appliances at Chicago's local electricity rate.
Frequently Asked Questions
How much does it cost to run a Tankless Water Heater (Electric) in Chicago, IL?
At Chicago's average electricity rate of 16.6¢/kWh, a Tankless Water Heater (Electric) costs approximately $547 per year to run. That's about $45.55 per month with typical usage of 0.5 hours per day.
What is the electricity rate in Chicago, IL?
The average residential electricity rate in Chicago, IL is 16.6¢/kWh, which is 28% above the national average of 13.0¢/kWh. The primary utility provider is ComEd (Commonwealth Edison).
How much electricity does a Tankless Water Heater (Electric) use per year?
A Tankless Water Heater (Electric) uses approximately 18,000 watts and consumes about 3,285 kWh per year with typical usage of 0.5 hours/day for 365 days/year.
Is a Tankless Water Heater (Electric) expensive to run in Chicago?
Compared to the national average cost of $427/year, running a Tankless Water Heater (Electric) in Chicago costs $120 more per year due to higher local electricity rates.
How can I reduce my Tankless Water Heater (Electric) energy cost in Chicago?
To reduce Tankless Water Heater (Electric) costs in Chicago: Provides hot water on demand with no standby loss. Flush annually to remove scale. Upgrading to an ENERGY STAR model saves up to 20% on energy costs. Also check with ComEd (Commonwealth Edison) for local energy efficiency rebates and programs.