writer needs to read up the difference between kW & kWh.
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What mistake is the writer making? I don’t see a problem.
1KW instantaneous is a measure of power that everyone realizes would be 1KWh if run for an hour. The “h” simply means per hour. Devices that use electricity are rated in watts or Kilo watts but understood to mean that although the measurement is instantaneous it would be that number of watts over the period of an hour.
A 100W light bulb would produce 1000W over 10 hours and .06Kw in 10 minutes but is still rated as 100W not 100 WH. Nobody that I know stands around with a stopwatch to turn off a device after exactly 1 hour.
1KW instantaneous is a measure of power that everyone realizes would be 1KWh if run for an hour. The “h” simply means per hour. Devices that use electricity are rated in watts or Kilo watts but understood to mean that although the measurement is instantaneous it would be that number of watts over the period of an hour.
A 100W light bulb would produce 1000W over 10 hours and .06Kw in 10 minutes but is still rated as 100W not 100 WH. Nobody that I know stands around with a stopwatch to turn off a device after exactly 1 hour.
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Not quite. 1KW is indeed a unit of power, or rate of energy production or consumption. It equals 1000 x 3600 Joules per hour, or 1000 Joules per second. A Joule is a unit of energy: 1 W-second (1Ws) = 1 Joule. 1KWh means 1KW x 1 hour (not per hour) which is, again, an amount of enery, not power. So we can say that 1KW = 1KWh per hour. A 100W light bulb would produce (or rather consume) 1000Wh in 10 hours, and it would consume 16.7 Wh in 10 minutes (one sixth of an hour), or 0.0167 KWh.