https://elec.webpenson.com/en/categories/energy-saving-tools/ Recent content in Energy-Saving Tools on Electrical Toolbox Hugo en-US https://elec.webpenson.com/en/tools/electricity-cost-calculator/ Mon, 01 Jan 0001 00:00:00 +0000 https://elec.webpenson.com/en/tools/electricity-cost-calculator/ Free online electricity cost estimator. Enter appliance wattage W and daily usage hours (or monthly kWh) plus electricity rate ¥/kWh to calculate daily/monthly/annual costs. Includes presets for LED lights, refrigerators, air conditioners, and water heaters. Assists with household energy savings.