Power and Energy - Demonstrated

With the defaults set you can see that a 120 volt appliance with a Power (Rate) of 1,000 Watts running for 1 Hour will use 1 kWhs of energy. Click Calculate Energy button below to see this.

Experiment with various Power and Time settings and note the Energy results. Time can be set to: Hours, Minutes, Seconds, or in combination of the three. Volts is defaulted to 120 Volts (US), but can be changed to see different results.

POWER   x   TIME   =   ENERGY
POWER (RATE)
Unit Values
Volts:
Watts:
Amps:
Ohms:
Joules:
TIME
Unit Values
Hours:
Minutes:
Seconds:
Total Seconds:
ENERGY (AMOUNT)
Joules:
Total Watts:
kWhs:

Review

Above are three tables: POWER, TIME, and ENERGY. Note that as Watts goes up: Amps (Current) goes up, Joules goes up, and Ohms (Resistance) goes down.

POWER is the RATE a which energy is converted or consumed. TIME table is the amount of time an appliance (load) is ON, and ENERGY is the AMOUNT of work done.