de2
Member
- Location
- Newark, NJ
Hello,
I was asked to do a estimated electricity cost for one of my commercial client. This is a simple calculation but I wanted to run by forum members because I have few questions;
kwh electricity is 1Cent/kwh (to make calculation easy)
Item#1) Refrigerator, Name Plate Data; 120V, 5A, 600Watt, on 24hrs/30days
Item#2) Desktop computer, Name Plate Data; 120V, 2.5A, 300Watt, on 24hrs/30days
Item#3) Lights, 120V, 0.83A, 100Watt, on 24hrs/30days
(600*24*30) + (300*24*30) + (100*24*30) = 720kwh
720kwh * 1c/kwh = 7.20$
Item#1) Refrigerator does not use full name plate watt for the entire 24 hours of a day. Once it reaches the set temp, it will go to idle mode. How do you calculate this?
Item#2) Desktop computer is same as refrigerator, it will not be using full watt when it not being used.
Item#3) Lights will be using full name plate watt, no question here.
How would you approach this calculation?
I was asked to do a estimated electricity cost for one of my commercial client. This is a simple calculation but I wanted to run by forum members because I have few questions;
kwh electricity is 1Cent/kwh (to make calculation easy)
Item#1) Refrigerator, Name Plate Data; 120V, 5A, 600Watt, on 24hrs/30days
Item#2) Desktop computer, Name Plate Data; 120V, 2.5A, 300Watt, on 24hrs/30days
Item#3) Lights, 120V, 0.83A, 100Watt, on 24hrs/30days
(600*24*30) + (300*24*30) + (100*24*30) = 720kwh
720kwh * 1c/kwh = 7.20$
Item#1) Refrigerator does not use full name plate watt for the entire 24 hours of a day. Once it reaches the set temp, it will go to idle mode. How do you calculate this?
Item#2) Desktop computer is same as refrigerator, it will not be using full watt when it not being used.
Item#3) Lights will be using full name plate watt, no question here.
How would you approach this calculation?