Crosswords1 min ago
Cost of electricty
2 Answers
My electricity costs per unit are 7.33p during the day and 2.43 at night (economy 7). If I want to work out how much a particular electrical appliance costs to run, which is say 500w, can I do this with just this information and if so how?
Answers
1 to 2 of 2
Best Answer
No best answer has yet been selected by Miss Zippy. Once a best answer has been selected, it will be shown here.
For more on marking an answer as the "Best Answer", please visit our FAQ.
A unit is one kilowatt-hour (the amount of electricity used to run a 1000w item for one hour).
It depends when your shitch from day rates to night rates but lets assume between 8am and 6pm for day rate
10 hours at day rate for a 0.5 kw appliance is 5 kwh - 36.65p
14 hours at night rate or a 0.5 kw appliance is 7 kwh - 17.01p
Total cost over 24 hours = 53.66p = 54p
It depends when your shitch from day rates to night rates but lets assume between 8am and 6pm for day rate
10 hours at day rate for a 0.5 kw appliance is 5 kwh - 36.65p
14 hours at night rate or a 0.5 kw appliance is 7 kwh - 17.01p
Total cost over 24 hours = 53.66p = 54p
1 to 2 of 2
