Part of the data ring
WattCost
Schedule builder · live register

Running cost calculator

Certified consumption, your own tariff, and the arithmetic left where you can see it.

Register 01 · annual running cost Wired: refrigerators · Texas · 100% duty
005655 dollars
per year

344 kWh certified × 16.44¢ per kWh ÷ 100 — refrigerators in Texas at the certified duty cycle

12.35¢Idaho 52.00¢Hawaii

Default: Texas residential average, 16.44¢ per kWh, EIA JUL 2026. Changing the tariff area rewrites this terminal; typing over it does not.

SOURCE·ENERGY STAR certified product data·tariff state residential averages 12.35–52¢ — EIA Electric Power Monthly, retrieved 2026-07-28·REVIEWED JUL 2026

Per month$4.71averaged
Per day$0.15averaged
Over 10 years$565.54at today's price
Best model$6.90per year

How this is worked out

  1. Take the certified annual consumption for the appliance class off the EPA's ENERGY STAR register — the median of every listed model, not a wattage anyone assumed.
  2. Take the residential tariff off the EIA's Electric Power Monthly, table 5.6.A. Here that is whichever state tariff is wired into the terminal above.
  3. Multiply, then divide by 100 to come out of cents. Nothing is rounded before this line.
  4. Derive the rest of the schedule from that one figure: ÷ 12 monthly, ÷ 365 daily, × 10 for a ten-year life.
  5. Overwrite the tariff terminal with the rate printed on your own bill and the register re-reads. The certified consumption does not move — that is the half of the sum nobody gets to opinion their way out of.
annual cost ($)  =  certified kWh per year  ×  tariff ¢ per kWh  ÷  100

Full method, and what these figures cannot tell you →

Refrigerators$66.77 a year · 4,469 modelsFreezers$79.97 a year · 652 modelsClothes washers$21.35 a year · 390 modelsClothes dryers$118.01 a year · 628 modelsDishwashers$46.39 a year · 722 modelsDehumidifiers$66.58 a year · 526 modelsRoom air conditioners$103.24 a year · 424 modelsWater heaters$197.01 a year · 680 modelsElectric cooking$37.85 a year · 255 models
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Published by

Amit Sharma

Auckland real-estate agent and marketer. Builds free, sourced data tools.

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