Tankless Water Heater (Electric) in Boston — $913/yr to Run (27.8¢/kWh)
Your tankless water heater (electric) in Boston costs about $76/month at 27.8¢/kWh. See daily, monthly, and yearly costs, plus tips to cut your bill.
Boston, MA Electricity Rate
27.8¢/kWh
Utility: Eversource Energy
+114% vs national avg
National avg: 13.0¢/kWh
Daily Cost
$2.50
9.0 kWh/day
Monthly Cost
$76.05
274 kWh/mo
Annual Cost
$913
3,285 kWh/yr
Lifetime (20yr)
$18,251
energy only
Monthly Cost Breakdown in Boston
| Period | kWh | Boston Cost | National Avg | Difference |
|---|---|---|---|---|
| Daily | 9.0 | $2.50 | $1.17 | +$1.33 |
| Weekly | 63.0 | $17.50 | $8.19 | +$9.31 |
| Monthly | 273.8 | $76.05 | $35.59 | +$40.46 |
| Quarterly | 821.3 | $228.14 | $106.76 | +$121.38 |
| Annual | 3285.0 | $912.57 | $427.05 | +$485.52 |
Customize Your Tankless Water Heater (Electric) Cost
Adjust usage hours and electricity rate to calculate your exact cost in Boston.
Daily
$2.50
Monthly
$76.05
Annual
$913
20-Year
$18,251
Energy Saving Tips for Tankless Water Heater (Electric) in Boston
- ✓Boston electricity rates are 114% above the national average — energy efficiency matters more here.
- ✓An ENERGY STAR Tankless Water Heater (Electric) in Boston saves ~$183/year compared to standard models.
- ✓A smart Tankless Water Heater (Electric) with scheduling optimization can save ~$137/year at Boston 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 Boston saves approximately $183/year at local rates — $3,650 over the appliance lifetime.
Highest-Cost Appliances in Boston, MA
See which appliances cost the most to run at Boston's 27.8¢/kWh electricity rate.
Level 2 EV Charger (240V)
Transportation · 7,200W
$3,600/yr
$300.02/mo
Electric Furnace
HVAC · 10,000W
$2,500/yr
$208.35/mo
Electric Tankless Water Heater
Water Heating · 18,000W
$1,825/yr
$152.10/mo
EV Charger (Level 2)
Garage · 7,200W
$1,800/yr
$150.01/mo
Boiler (Electric)
HVAC · 6,000W
$1,500/yr
$125.01/mo
Electric Water Heater (Tank)
Water Heating · 4,500W
$1,369/yr
$114.07/mo
Water Heater (Tank Electric)
Water Heating · 4,500W
$1,369/yr
$114.07/mo
Heat Pump
HVAC · 2,400W
$1,067/yr
$88.90/mo
Tankless Water Heater (Electric) Cost in Other Massachusetts Cities
| City | Rate | Annual Cost | vs Boston |
|---|---|---|---|
| Boston (current) | 27.8¢ | $913 | — |
| Worcester | 29.6¢ | $972 | +$60 |
| Springfield | 29.2¢ | $958 | +$46 |
| Cambridge | 26.9¢ | $885 | $-28 |
| Lowell | 30.3¢ | $995 | +$82 |
| Brockton | 21.0¢ | $691 | $-222 |
| Quincy | 21.4¢ | $705 | $-208 |
| New Bedford | 23.4¢ | $770 | $-143 |
| Lynn | 21.5¢ | $708 | $-205 |
Tankless Water Heater (Electric) Energy Cost FAQ — Boston, MA
Understanding Tankless Water Heater (Electric) Energy Costs in Boston, MA
In a major metro like Boston, electricity demand is high and rates reflect the cost of maintaining infrastructure for 0.7 million residents. Running a high-draw appliance like the Tankless Water Heater (Electric) (18,000W) at Boston's rate of 27.8¢/kWh costs approximately $913 per year — $486 more than the national average of $427.
Electricity in Boston is significantly more expensive than the national average — 114% higher. For a Tankless Water Heater (Electric) used 0.5 hours per day, this rate premium adds up to $486 in extra annual costs. Energy-efficient models and usage habits have an outsized impact in high-rate markets like this.
Boston has a high cost of living (index: 141), 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 $183 per year at Boston rates.
Boston's moderate climate (avg 44°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. Boston 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 Boston.
Compare All Energy Costs in Boston
See energy costs for 168+ household appliances at Boston's local electricity rate.