Tankless Water Heater (Electric) in Cambridge — $885/yr to Run (26.9¢/kWh)
Your tankless water heater (electric) in Cambridge costs about $74/month at 26.9¢/kWh. See daily, monthly, and yearly costs, plus tips to cut your bill.
Cambridge, MA Electricity Rate
26.9¢/kWh
Utility: Eversource Energy
+107% vs national avg
National avg: 13.0¢/kWh
Daily Cost
$2.42
9.0 kWh/day
Monthly Cost
$73.72
274 kWh/mo
Annual Cost
$885
3,285 kWh/yr
Lifetime (20yr)
$17,693
energy only
Monthly Cost Breakdown in Cambridge
| Period | kWh | Cambridge Cost | National Avg | Difference |
|---|---|---|---|---|
| Daily | 9.0 | $2.42 | $1.17 | +$1.25 |
| Weekly | 63.0 | $16.97 | $8.19 | +$8.78 |
| Monthly | 273.8 | $73.72 | $35.59 | +$38.13 |
| Quarterly | 821.3 | $221.16 | $106.76 | +$114.40 |
| Annual | 3285.0 | $884.65 | $427.05 | +$457.60 |
Customize Your Tankless Water Heater (Electric) Cost
Adjust usage hours and electricity rate to calculate your exact cost in Cambridge.
Daily
$2.42
Monthly
$73.72
Annual
$885
20-Year
$17,693
Energy Saving Tips for Tankless Water Heater (Electric) in Cambridge
- ✓Cambridge electricity rates are 107% above the national average — energy efficiency matters more here.
- ✓An ENERGY STAR Tankless Water Heater (Electric) in Cambridge saves ~$177/year compared to standard models.
- ✓A smart Tankless Water Heater (Electric) with scheduling optimization can save ~$133/year at Cambridge 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 Cambridge saves approximately $177/year at local rates — $3,539 over the appliance lifetime.
Highest-Cost Appliances in Cambridge, MA
See which appliances cost the most to run at Cambridge's 26.9¢/kWh electricity rate.
Level 2 EV Charger (240V)
Transportation · 7,200W
$3,490/yr
$290.84/mo
Electric Furnace
HVAC · 10,000W
$2,424/yr
$201.97/mo
Electric Tankless Water Heater
Water Heating · 18,000W
$1,769/yr
$147.44/mo
EV Charger (Level 2)
Garage · 7,200W
$1,745/yr
$145.42/mo
Boiler (Electric)
HVAC · 6,000W
$1,454/yr
$121.18/mo
Electric Water Heater (Tank)
Water Heating · 4,500W
$1,327/yr
$110.58/mo
Water Heater (Tank Electric)
Water Heating · 4,500W
$1,327/yr
$110.58/mo
Heat Pump
HVAC · 2,400W
$1,034/yr
$86.18/mo
Tankless Water Heater (Electric) Cost in Other Massachusetts Cities
| City | Rate | Annual Cost | vs Cambridge |
|---|---|---|---|
| Cambridge (current) | 26.9¢ | $885 | — |
| Boston | 27.8¢ | $913 | +$28 |
| Worcester | 29.6¢ | $972 | +$88 |
| Springfield | 29.2¢ | $958 | +$74 |
| Lowell | 30.3¢ | $995 | +$110 |
| Brockton | 21.0¢ | $691 | $-194 |
| Quincy | 21.4¢ | $705 | $-180 |
| New Bedford | 23.4¢ | $770 | $-115 |
| Lynn | 21.5¢ | $708 | $-177 |
Tankless Water Heater (Electric) Energy Cost FAQ — Cambridge, MA
Understanding Tankless Water Heater (Electric) Energy Costs in Cambridge, MA
Cambridge is a mid-sized Massachusetts city where residential electricity rates from Eversource Energy are shaped by regional energy supply and local demand patterns. Running a high-draw appliance like the Tankless Water Heater (Electric) (18,000W) at Cambridge's rate of 26.9¢/kWh costs approximately $885 per year — $458 more than the national average of $427.
Electricity in Cambridge is significantly more expensive than the national average — 107% higher. For a Tankless Water Heater (Electric) used 0.5 hours per day, this rate premium adds up to $458 in extra annual costs. Energy-efficient models and usage habits have an outsized impact in high-rate markets like this.
Cambridge has a high cost of living (index: 127), 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 $177 per year at Cambridge rates.
Cambridge's moderate climate (avg 49.8°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. Cambridge 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 Cambridge.
Compare All Energy Costs in Cambridge
See energy costs for 168+ household appliances at Cambridge's local electricity rate.