Understanding Household Energy Consumption & Kilowatt-Hours
Utility companies bill residential consumers based on Kilowatt-Hours (kWh), representing 1,000 Watts of electricity consumed continuously over one hour:
The Electricity Cost Formula
Daily kWh = (Power in Watts × Daily Hours) / 1,000
Monthly Cost ($) = Daily kWh × 30 × Cost per kWh
Frequently Asked Questions (FAQ)
What is phantom or vampire power draw?
Electronics left in standby mode (TVs, chargers, computers) continuously draw small amounts of current. Unplugging idle devices can trim 5%–10% from monthly utility bills.