Tankless Water Heater (Electric) in Rochester — $695/yr to Run (21.1¢/kWh)
Your tankless water heater (electric) in Rochester costs about $58/month at 21.1¢/kWh. See daily, monthly, and yearly costs, plus tips to cut your bill.
Rochester, NY Electricity Rate
21.1¢/kWh
Utility: Rochester Gas & Electric (RG&E)
+63% vs national avg
National avg: 13.0¢/kWh
Daily Cost
$1.90
9.0 kWh/day
Monthly Cost
$57.90
274 kWh/mo
Annual Cost
$695
3,285 kWh/yr
Lifetime (20yr)
$13,896
energy only
Monthly Cost Breakdown in Rochester
| Period | kWh | Rochester Cost | National Avg | Difference |
|---|---|---|---|---|
| Daily | 9.0 | $1.90 | $1.17 | +$0.73 |
| Weekly | 63.0 | $13.32 | $8.19 | +$5.13 |
| Monthly | 273.8 | $57.90 | $35.59 | +$22.31 |
| Quarterly | 821.3 | $173.69 | $106.76 | +$66.93 |
| Annual | 3285.0 | $694.78 | $427.05 | +$267.73 |
Customize Your Tankless Water Heater (Electric) Cost
Adjust usage hours and electricity rate to calculate your exact cost in Rochester.
Daily
$1.90
Monthly
$57.90
Annual
$695
20-Year
$13,896
Energy Saving Tips for Tankless Water Heater (Electric) in Rochester
- ✓Rochester electricity rates are 63% above the national average — energy efficiency matters more here.
- ✓An ENERGY STAR Tankless Water Heater (Electric) in Rochester saves ~$139/year compared to standard models.
- ✓A smart Tankless Water Heater (Electric) with scheduling optimization can save ~$104/year at Rochester 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 Rochester saves approximately $139/year at local rates — $2,779 over the appliance lifetime.
Highest-Cost Appliances in Rochester, NY
See which appliances cost the most to run at Rochester's 21.1¢/kWh electricity rate.
Level 2 EV Charger (240V)
Transportation · 7,200W
$2,741/yr
$228.42/mo
Electric Furnace
HVAC · 10,000W
$1,904/yr
$158.63/mo
Electric Tankless Water Heater
Water Heating · 18,000W
$1,390/yr
$115.80/mo
EV Charger (Level 2)
Garage · 7,200W
$1,371/yr
$114.21/mo
Boiler (Electric)
HVAC · 6,000W
$1,142/yr
$95.17/mo
Electric Water Heater (Tank)
Water Heating · 4,500W
$1,042/yr
$86.85/mo
Water Heater (Tank Electric)
Water Heating · 4,500W
$1,042/yr
$86.85/mo
Heat Pump
HVAC · 2,400W
$812/yr
$67.68/mo
Tankless Water Heater (Electric) Cost in Other New York Cities
| City | Rate | Annual Cost | vs Rochester |
|---|---|---|---|
| Rochester (current) | 21.1¢ | $695 | — |
| New York | 23.2¢ | $761 | +$67 |
| Oyster Bay | 19.0¢ | $624 | $-71 |
| Buffalo | 22.3¢ | $732 | +$37 |
| North Hempstead | 18.6¢ | $611 | $-83 |
| Babylon | 19.4¢ | $636 | $-59 |
| Yonkers | 23.0¢ | $755 | +$60 |
| Huntington | 18.1¢ | $595 | $-100 |
| Syracuse | 24.1¢ | $792 | +$97 |
Methodology & Energy Data Sources for Rochester
How we calculate tankless water heater (electric) energy costs in Rochester, NY: 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 Rochester reflects New York averages from EIA Form 861 (utility sales data). Rates vary by season (typically 10-20% summer premium) and time-of-use in many New York 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 New York.
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 — New York — generation mix, prices, and consumption
Disclaimer: Energy costs are estimates based on average appliance usage and New York 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 Rochester
The New York 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 New York 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 — New York 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 — Rochester, NY
Understanding Tankless Water Heater (Electric) Energy Costs in Rochester, NY
Rochester is a mid-sized New York city where residential electricity rates from Rochester Gas & Electric (RG&E) are shaped by regional energy supply and local demand patterns. Running a high-draw appliance like the Tankless Water Heater (Electric) (18,000W) at Rochester's rate of 21.1¢/kWh costs approximately $695 per year — $268 more than the national average of $427.
Electricity in Rochester is significantly more expensive than the national average — 63% higher. For a Tankless Water Heater (Electric) used 0.5 hours per day, this rate premium adds up to $268 in extra annual costs. Energy-efficient models and usage habits have an outsized impact in high-rate markets like this.
Rochester has a high cost of living (index: 123), which means electricity is just one of many above-average expenses. Reducing appliance energy costs — even by small amounts — contributes to meaningful household savings in this market. Upgrading to an ENERGY STAR Tankless Water Heater (Electric) can cut energy use by up to 20%, saving approximately $139 per year at Rochester rates.
Rochester's moderate climate (avg 43.7°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. Rochester 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 Rochester.
Compare All Energy Costs in Rochester
See energy costs for 178+ household appliances at Rochester's local electricity rate.
Frequently Asked Questions
How much does it cost to run a Tankless Water Heater (Electric) in Rochester, NY?
At Rochester's average electricity rate of 21.1¢/kWh, a Tankless Water Heater (Electric) costs approximately $695 per year to run. That's about $57.90 per month with typical usage of 0.5 hours per day.
What is the electricity rate in Rochester, NY?
The average residential electricity rate in Rochester, NY is 21.1¢/kWh, which is 63% above the national average of 13.0¢/kWh. The primary utility provider is Rochester Gas & Electric (RG&E).
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 Rochester?
Compared to the national average cost of $427/year, running a Tankless Water Heater (Electric) in Rochester costs $268 more per year due to higher local electricity rates.
How can I reduce my Tankless Water Heater (Electric) energy cost in Rochester?
To reduce Tankless Water Heater (Electric) costs in Rochester: 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 Rochester Gas & Electric (RG&E) for local energy efficiency rebates and programs.