https://peakgrid.org PeakGrid is an independent guide to home electricity costs: appliance running costs, efficiency gaps, and off-peak savings, in plain dollars. https://peakgrid.org/articles/window-ac-vs-portable-ac-vs-fan-cost/ At the April 2026 average rate of 18.83 cents per kWh, a 10,000 BTU window AC runs about $38 a month, the same size portable about $57, and a ceiling fan under $3. Here is why the gaps exist and the fan-plus-AC trade that beats all three alone. Sat, 11 Jul 2026 07:30:00 GMT https://peakgrid.org/articles/window-ac-vs-portable-ac-vs-fan-cost/ https://peakgrid.org/articles/which-appliances-use-the-most-electricity/ Air conditioning, water heating, and drying clothes dominate most electricity bills. Typical wattages, the simple kWh formula, and worked examples show where your money actually goes. Thu, 09 Jul 2026 09:00:00 GMT https://peakgrid.org/articles/which-appliances-use-the-most-electricity/