Energy each year for lights?? HELP!!!!???

Question

This is for a project in school, and i was wondering, if any one knew how much energy is used in a house, or school or anything each year. Please don't put answers like alot, or i donno, this is really important. thanx!

Answer 1

Count how many lights you are using and how many watts they are.

A 100w light bulb will use 100 watt hours for every hour it is lit.

Ten 100w lightbulbs burning for one hour will use 1 kilowatt hour of electricity.

1000 watts = 1 kilowatt.

1000 kilowatts = 1 megawatt.

Hope this helps, you should be able to calculate the usage using these values in your equation.

Answer 2

Have your parents show you the hydro bill.  Multiply the number of kilowatt-hours used by 3,600,000 and you will have the total energy in joules.