Make a copy to your google drive so you can edit the top four values to match your system and power rate.
https://docs.google.com/spreadsheets/d/1rGhNmzlN_sUj-0QAbwfaL1JLq7mHsS5dVkvC9A3cX1s/edit#gid=0
System load is always smaller than power used at the wall. It can be estimated by multiplying your current power usage at the wall by the efficiency of your PSU. 810W with a 92% efficient PSU would be 810*.92=745W for example. Use the efficiency curve for your PSU or estimate it based on the rating your PSU has. An example 80 Plus Platinum curve is shown below.
If your house is wired with 115VAC take a look at how bad efficiency drops off after 50% on the 80plus platinum PSU below. You might want to consider putting a 230VAC line in since it increases the PSU efficiency by 2 It only cost me $100 to put in a 230vac 30amp circuit but I got lucky at a used home supplies store so it's probably double at a retail store. The install isn't any harder than putting in a 115VAC circuit.
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https://docs.google.com/spreadsheets/d/1rGhNmzlN_sUj-0QAbwfaL1JLq7mHsS5dVkvC9A3cX1s/edit#gid=0
System load is always smaller than power used at the wall. It can be estimated by multiplying your current power usage at the wall by the efficiency of your PSU. 810W with a 92% efficient PSU would be 810*.92=745W for example. Use the efficiency curve for your PSU or estimate it based on the rating your PSU has. An example 80 Plus Platinum curve is shown below.
If your house is wired with 115VAC take a look at how bad efficiency drops off after 50% on the 80plus platinum PSU below. You might want to consider putting a 230VAC line in since it increases the PSU efficiency by 2 It only cost me $100 to put in a 230vac 30amp circuit but I got lucky at a used home supplies store so it's probably double at a retail store. The install isn't any harder than putting in a 115VAC circuit.
