Blog
Longer-form writing built on the same data as the rest of the site — buying guides, efficiency deep-dives, and notes on what changes in the datasets.
· Sharon Ben-Moshe · Clothes Dryers
The median certified electric clothes dryer in WattCost's current dataset uses about 2.15 kWh per load, or roughly 40¢ per load at the April 2026 U.S. average residential price. The calculation…
· Sharon Ben-Moshe · Televisions
The median certified television in WattCost's current dataset costs about $2.94 per month at the April 2026 U.S. average residential electricity price. That is $35.31 a year for 187.5 kWh of annual…
· Sharon Ben-Moshe · Air Conditioners
Using the current certified room-air-conditioner median and the DOE's 750-hour annual test basis, a window-style room AC works out to about 13¢ per test-basis cooling hour at the April 2026 U.S.…
· Sharon Ben-Moshe · Energy Basics
A 1,500-watt space heater costs about 28¢ per hour at the April 2026 U.S. average residential electricity price of 18.83¢/kWh. At full power, it uses 1.5 kWh in one hour; the cost is an estimate…
· Sharon Ben-Moshe · Energy Basics
A typical 35-watt ceiling fan running eight hours a day costs about $1.58 per month at the April 2026 U.S. average residential electricity price. The estimate is 35 watts × 8 hours × 30 days ÷ 1,000…
· Sharon Ben-Moshe · Energy Basics
A 1,500-watt pool pump running eight hours a day costs about $67.79 per 30-day month at the April 2026 U.S. average residential electricity price. The calculation is 1.5 kW × 8 hours × 30 days ×…
· Sharon Ben-Moshe · Refrigerators
A counter-depth refrigerator is not automatically cheaper to run, but the current certified models in WattCost's data have a $51 median annual electricity cost, versus $85 for the larger…
· Sharon Ben-Moshe · Dishwashers
An 18-inch dishwasher is not guaranteed to cost less to run than a 24-inch model. In WattCost's certified dataset, the overall dishwasher median is 239 kWh a year, or about $45 at the U.S. average…
· Sharon Ben-Moshe · Dehumidifiers
A 50-pint dehumidifier has a materially higher running-cost baseline than a 25-pint unit: the certified medians are $98 a year versus $54 at the current U.S. average electricity rate. Size for the…
· Sharon Ben-Moshe · Air Conditioners
A certified 12,000 BTU room air conditioner has a higher running-cost baseline than an 8,000 BTU unit: the current medians are $113 a year versus $75 at the U.S. average electricity rate. The right…
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