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2.1. Without fossil fuels
Gross pEUI = Grid Electricity / Project Area
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Renewable Fuel Sources = Electricity from dedicated off-site renewables + Electricity from on-site renewables
2.2. With fossil fuels
Gross pEUI = (Grid Electricity + fossilFuel )/ Project Area
Net pEUI = ((Grid Electricity + Fossil Fuel) - minimum ( Grid electricity, ( On and Off-Site Renewable Fuel Sources) ) / Project Area
Where
Fossil Fuel = Other fossil fuel sources + District + Gas
Observation: Even though Electricity though electricity from purchased off-site renewables is reported, it will not be taken in account for the calculations of Net and Gross pEUI.
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Note: Units for Gross and Net pEUI displayed depend on the project settings.
You can find more information on the Net Operational Carbon value here.