K = 1,000. KWH = the use of 1,000 watts/hour in overly simple terms. The formula is watts TIMES hours divided by 1,000 = KWH.
Let’s say your rate is 0.20 per kwh. Here are some more realistic examples:
If a 100 watt light bulb runs for 10 hours, it uses one KWH or 0.20 worth of billed electric.
If a 2,200 watt device runs for 30 minutes, that’s 2.2KW x 0.5 hour = 1.1KWH or 0.22 worth of billed electric.
If a 75 watt device runs 24 hours that’s 75 x 24 ./. 1,000 = 1.8 KWH or 0.36 worth of billed electric.
If a 60 watt device runs constantly for 24 hours, that’s 60 x 24 = 1,440 watts consumed or 1.44 KWH. At 0.20/KWH that’s 1.44 x 0.20 = 0.288 of billed electricity.
If you have a combined 13,000 watts of electric baseboard heat running 14 hours/day that’s 13,000 x 24 = 182,000 watts consumed or 182 KWH x 0.20 = 36.40/day or 1,092.00 for 30 days.
Peak / off peak accounts encourage use during off-peak times and charge a premium during peak times. You have to apply the applicable rates at time of usage.
I once owned a building with an elevator. 440v 3 phase electric service with a demand factor billed. This took the sudden surge into account each time the elevator started up.
Hope this helps Jason.
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