To calculate estimated energy costs on your own, start by identifying your electricity rate per kilowatt-hour (kWh) from your utility bill, then list all appliances or building systems with their power ratings in watts, convert watts to kilowatts, and multiply by estimated daily operating hours to calculate energy consumption; add the total daily kWh, multiply by 30 for monthly usage, and multiply by the kWh rate to estimate monthly energy costs—this method is commonly used in construction and MEP takeoff services, electrical takeoff services, and energy estimating during project planning to support accurate cost estimating and takeoff services.
