Demand Calculator

Want to know "watt" is driving your demand?

Use this estimator to see how stacking your appliances impacts your demand needs, and how you can manage demand charges.


Air conditioner
ON OFF
Heat pump
ON OFF
Hot Tub
ON OFF
Clothes dryer
ON OFF
Washing machine
ON OFF
Electric oven
ON OFF
Electric range
ON OFF
Dishwasher
ON OFF
Television
ON OFF
Microwave
ON OFF
Coffee maker
ON OFF
Toaster
ON OFF
Iron
ON OFF
Hair dryer
ON OFF
Vacuum
ON OFF
Refrigerator
ON OFF
Electric water heater
ON OFF
Electric vehicle charger (level 1)
ON OFF
Electric vehicle charger level 2 - 240V/16A
ON OFF
Electric vehicle charger level 2 – 240V/30A
ON OFF
Space Heater
ON OFF
Stock tank heater
ON OFF
Welder
ON OFF
Total Demand Estimated Demand Charge:  

How To Use The Demand Calculator

To get an idea of how stacking the use of household appliances affects your demand charges, select the appliances your household tends to use at one time. It's easy to see how using multiple appliances at once can quickly add up. Select from Summer or Winter to see how the changing seasons affects which common household appliances drive demand costs. By toggling on and off appliances in this online estimator, you can see how staggering the use of large appliances can help you manage your energy use and save on demand charges.

What is Demand and How am I Charged?

Demand, measured in kilowatts (kW), is the rate at which power is consumed. 1 kW is equivalent to 1,000 watts. Energy, on the other hand, is measured in kilo-watt hours (kWh) and represents the total amount of electricity consumed over the billing period.

Demand charges are calculated using the single highest 15-minute interval of power consumption over the billing cycle multiplied by the current per kW rate. As a point of reference, the average Eastern Illini Electric's Power residential demand is 7 kW.

The Demand Calculator is for informational purposes only and displays estimated wattage of common appliances on Eastern Illini Electric's Standard Residential rate and does not include Energy Charges or Fixed Charges.