Central Air Conditioner in Cambridge — $905/yr to Run (26.9¢/kWh)
Your central air conditioner in Cambridge costs about $75/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
$7.54
28.0 kWh/day
Monthly Cost
$75.40
280 kWh/mo
Annual Cost
$905
3,360 kWh/yr
Lifetime (15yr)
$13,573
energy only
Monthly Cost Breakdown in Cambridge
| Period | kWh | Cambridge Cost | National Avg | Difference |
|---|---|---|---|---|
| Daily | 28.0 | $7.54 | $3.64 | +$3.90 |
| Weekly | 196.0 | $52.78 | $25.48 | +$27.30 |
| Monthly | 280.0 | $75.40 | $36.40 | +$39.00 |
| Quarterly | 840.0 | $226.21 | $109.20 | +$117.01 |
| Annual | 3360.0 | $904.85 | $436.80 | +$468.05 |
Customize Your Central Air Conditioner Cost
Adjust usage hours and electricity rate to calculate your exact cost in Cambridge.
Daily
$7.54
Monthly
$75.40
Annual
$905
15-Year
$13,573
Energy Saving Tips for Central Air Conditioner in Cambridge
- ✓Cambridge electricity rates are 107% above the national average — energy efficiency matters more here.
- ✓An ENERGY STAR Central Air Conditioner in Cambridge saves ~$136/year compared to standard models.
- ✓A smart Central Air Conditioner with scheduling optimization can save ~$181/year at Cambridge rates.
- ✓Set thermostat to 78F when home
- ✓Clean or replace filters monthly
- ✓Use a programmable thermostat
ENERGY STAR Savings: Upgrading to an ENERGY STAR Central Air Conditioner in Cambridge saves approximately $136/year at local rates — $2,036 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
Central Air Conditioner Cost in Other Massachusetts Cities
| City | Rate | Annual Cost | vs Cambridge |
|---|---|---|---|
| Cambridge (current) | 26.9¢ | $905 | — |
| Boston | 27.8¢ | $933 | +$29 |
| Worcester | 29.6¢ | $995 | +$90 |
| Springfield | 29.2¢ | $980 | +$75 |
| Lowell | 30.3¢ | $1,017 | +$113 |
| Brockton | 21.0¢ | $707 | $-198 |
| Quincy | 21.4¢ | $721 | $-184 |
| New Bedford | 23.4¢ | $787 | $-118 |
| Lynn | 21.5¢ | $724 | $-181 |
Methodology & Energy Data Sources for Cambridge
How we calculate central air conditioner energy costs in Cambridge, MA: 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 Cambridge reflects Massachusetts averages from EIA Form 861 (utility sales data). Rates vary by season (typically 10-20% summer premium) and time-of-use in many Massachusetts 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 Massachusetts.
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 central air conditioners
- DOE Energy Saver — Electricity — official tips and appliance comparison
- EPA eGRID — Regional Emissions — carbon intensity by grid region
- EIA State Energy Profiles — Massachusetts — generation mix, prices, and consumption
Disclaimer: Energy costs are estimates based on average appliance usage and Massachusetts 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 Cambridge
The Massachusetts 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 Massachusetts 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 — Massachusetts 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.
Central Air Conditioner Energy Cost FAQ — Cambridge, MA
Understanding Central Air Conditioner 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 Central Air Conditioner (3,500W) at Cambridge's rate of 26.9¢/kWh costs approximately $905 per year — $468 more than the national average of $437.
Electricity in Cambridge is significantly more expensive than the national average — 107% higher. For a Central Air Conditioner used 8 hours per day, this rate premium adds up to $468 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 Central Air Conditioner can cut energy use by up to 15%, saving approximately $136 per year at Cambridge rates.
Cambridge's moderate climate (avg 49.8°F) helps keep seasonal energy cost swings manageable for most appliances. A Central Air Conditioner produces approximately 2.4 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 178+ household appliances at Cambridge's local electricity rate.
Frequently Asked Questions
How much does it cost to run a Central Air Conditioner in Cambridge, MA?
At Cambridge's average electricity rate of 26.9¢/kWh, a Central Air Conditioner costs approximately $905 per year to run. That's about $75.40 per month with typical usage of 8 hours per day.
What is the electricity rate in Cambridge, MA?
The average residential electricity rate in Cambridge, MA is 26.9¢/kWh, which is 107% above the national average of 13.0¢/kWh. The primary utility provider is Eversource Energy.
How much electricity does a Central Air Conditioner use per year?
A Central Air Conditioner uses approximately 3,500 watts and consumes about 3,360 kWh per year with typical usage of 8 hours/day for 120 days/year.
Is a Central Air Conditioner expensive to run in Cambridge?
Compared to the national average cost of $437/year, running a Central Air Conditioner in Cambridge costs $468 more per year due to higher local electricity rates.
How can I reduce my Central Air Conditioner energy cost in Cambridge?
To reduce Central Air Conditioner costs in Cambridge: Set thermostat to 78F when home. Clean or replace filters monthly. Upgrading to an ENERGY STAR model saves up to 15% on energy costs. Also check with Eversource Energy for local energy efficiency rebates and programs.