How quickly does a 1kW appliance use energy?

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Terrible with math and I barely understand the concepts but if my fridge is a 1kw fridge, how long of running it at its “maximum” would it take to use 8700kj(average adult recommendation)

Looking for the math to be explained too please.

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6 Answers

Anonymous 0 Comments

W = J/s. kW=1000W=1000J/s=1kJ/s. So 8700kJ takes 8700s.

W is power, the speed to generate or consume energy.

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