Considering all of the errors and mistakes government makes, the post about A Flock of Seagulls seems to be a perfect case of the pot calling the kettle black. (Not to mention that there is no such animal as a seagull).
An electric heater rated at 1000 watts (1 kilowatt), operating for one hour uses one kilowatt-hour (equivalent to 3.6 megajoules) of energy. A television rated at 100 watts operating for 10 hours continuously uses one kilowatt-hour. A 40-watt light bulb operating continuously for 25 hours uses one kilowatt-hour.
Best Answer: A kilowatt is 1000 watts. A kilowatt hour is 1000 watt-hrs. If the appliance uses 45 Watts, you divide by 1000 to convert it into kilowatts and then multiply that by the number of hours (giving you kilowatt hours) . So 45 W * 3.5 hrs /1000 = 0.1575 KWH.