Every week I would estimate the electrical usage and forecast my expenses for the month. I would measure each rigs electrical consumption and time in operation. I would then determine how many watts were in use and calculate total kilowatts the machines would use for the month.
Below is a sample of GPU miner calculations
|Rig||Description||Count of GPUs||Total Hash||Total Watts||Kwatts||Watts Per GPU||Watts per MH|
Below is a sample for Asic miner calculations
|Rig||Description||Total Hash||Total Watts||Kwatts|
|R4M1||S9 14 T||14||1267||30.408|
|R4M2||S9 14 T||14||1267||30.408|
|R4M3||S9 14 T||14||1267||30.408|
I would estimate total Kilowatt hours for a 30 day period. My calculations would include all electrical components in the warehouse (miners + fans + lights + etc.).
Then I would apply the total Kilowatt hours to the electric companies sliding scale to determine how much my electric bill would be for the month.
Below is a sample of the sliding scale from the electric company
|Total KW Per Month||Electrical Costs||Scale|
|3,000.0||$ 0.115998||1-3000 kw|
|6,000.0||$ 0.071113||3001-9000 kw|
Finally based on crypto currency prices, expenses and mining difficulty I would determine if it was profitable to mine. There were many occasions were I would power off all miners for the day, week, etc until profitability increased.