If the Lighting Load - External lighting load, Basement area artificial lighting and HVAC load and equipment loads like BHS, Water treatment plant, STP, Escalator/Elevators, PBB,UPS etc. is considered for EPI calculation.
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The EPI calculation must be based on annual energy consumption of energy systems (HVAC, ventilation fans and internal lighting only) for each type of space, including both air–conditioned and non-air-conditioned areas (total built-up area of building/project after excluding non-living spaces such as parking areas, boiler room, mechanical room, DG room etc.).
However, other internal loads such as computers, elevators, escalators etc. inside the building must be modelled in energy simulation to account for heat load but will not be considered for EPI calculations.