JSutils for Computer Energy Saving and Energy Use Calculation  
Updated: 12-May-2008
JSutils Compact Disk

EnCalcL Formulae

Latest Version: 2.6
Size: 403KB
Released
15-May-2008
EnCalcL iconFormatting shim
JSutils software logo

EnCalcL uses the following formulae to calculate the results:

Item 1 Water Cost per Day = ( (Item 1 Use per Day * Number Times Use per Day) * (Water Volume Cost / 1000) ) * (100 * VAT) / 100

Item 1 Sewerage Cost per Day = ( (Item 1 Use per Day * Number Times Use per Day) * (Sewerage Volume Cost / 1000) * (100 - (Sewerage Volume Allowance / 100) ) ) * (100 * VAT) / 100

Item 2 Water Cost per Day = ( (Item 2 Use per Day * Number Times Use per Day) * (Water Volume Cost / 1000) ) * (100 * VAT) / 100

Item 2 Sewerage Cost per Day = ((Item 2 Use per Day * Number Times Use per Day) * (Sewerage Volume Cost / 1000) * (100 - (Sewerage Volume Allowance / 100) ) ) * (100 * VAT) / 100

Item 1 Cost per Day = Item 1 Water Cost per Day + Item 1 Sewerage Cost per Day + Item 1 Cost / (Payback Period * 365)

Item 2 Cost per Day = Item 2 Water Cost per Day + Item 2 Sewerage Cost per Day + Item 2 Cost / (Payback Period * 365)

Item Cost per Quarter = Total Item Cost per Day * 365 / 4

Item Cost Over Payback Period = Total Item Cost per Day * 365 * Payback Period

Saving per Day = Item 1 Cost per Day - Item 2 Cost per Day

Saving per Quarter = Item 1 Cost per Quarter - Item 2 Cost per Quarter

Saving Over Payback Period = Item 1 Cost over Payback Period - Item 2 Cost over Payback Period

Note 1: VAT is not applied to Item1 or Item 2 cost.
Note 2: If the currency selected is not UK Pounds (£) or Euros ( €) then VAT is changed to TAX