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EnCalcE uses the following formulae to calculate the results: Hours Used = Payback Period * 365 * (Normal Rate Hours On + Cheap Rate Hours On) Standby Hours Used = Payback Period * 365 * (Normal Rate Standby Hours + Cheap Rate Standby Hours) Number Of Replacement Items = Hours Used / Item Life (Rounded up to next whole number) Inflation Multiplier A = (1 + Inflation / 100)Payback Period Inflation Multiplier B = (1 + Inflation/ 100) + (1 + Inflation/ 100)2 + . . . . . . . . . . + (1 + Inflation/ 100)Payback Period Item On Cost per Day = ((Normal Rate Hours On * Normal Rate * (100 + VAT) / 100) + (Cheap Rate Hours On * Cheap Rate * (100 + VAT) / 100)) * ( Item Wattage / 1000) * Inflation Multiplier A Item Standby Cost per Day = ((Normal Rate Standby Hours * Normal Rate * (100 + VAT) / 100) + (Cheap Rate Standby Hours * Cheap Rate * (100 + VAT) / 100)) * ( Item Standby Wattage / 1000 ) * Inflation Multiplier A Item Cost per Day = Item On Cost per Day + Item Standby Cost per Day + Cost Of Item / (Payback Period) * 365) Item Cost per Quarter = Item Cost per Day * 365 / 4 Item Cost Over Payback Period = ( Item On Cost per Day + Item Standby Cost per Day * 365 * Inflation Multiplier B / Inflation Multiplier A ) + Item On Cost per Day + Item Standby Cost per Day Item Standby Percentage = Item Standby Cost per Day / (Item On Cost per Day + Item Standby Cost per Day) Item CO2 Generated Over Payback Period = (((Normal Rate Hours On + Cheap Rate Hours On ) * Item Wattage / 1000 ) + ((Normal Rate Standby Hours + Cheap Rate Standby Hours ) * Item Standby Wattage / 1000 ) ) * CO2 Conversion Factor * 365 * Payback Period Note 1: VAT is not applied
to Item1 or Item 2 cost. |
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