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CBECC-COM User Manual 2013
Version 1f
Electric Use section
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IntPDReg: Total regulated connected lighting power density for all interior lighting
systems in a Space. This includes the loads for lamps and ballasts.
Schedules (IntPDReg): Reference to a schedule that describes the fraction of lighting use
on an hourly basis.
Fraction to Space (IntPDReg): Fraction of regulated interior lighting heat gain going to
space air.
Radiant Fraction (IntPDReg): Fraction of regulated interior lighting radiant heat gain
going to space surfaces.
IntPDNonReg: Total non-regulated connected lighting power density for all interior
lighting systems in a Space. This includes the loads for lamps and ballasts.
Schedules (IntPDNonReg): Reference to a schedule that describes the fraction of lighting
use on an hourly basis.
Fraction to Space (IntPDNonReg): Fraction of non-regulated interior lighting heat gain
going to space air.
Radiant Fraction (IntPDNonReg): Fraction of non-regulated interior lighting radiant heat
gain going to space surfaces.
RecptPwrDens: The usage of electrical devices plugged into receptacles in a space based
on the occupancy type.
Schedules (RecptPwrDens): Reference to a schedule that describes the fraction of
receptacle use on an hourly basis.
ProcElecPwrDens: Process electrical power density resulting from an activity or
treatment not related to the space conditioning, lighting, service water heating, or
ventilating of a building as it relates to human occupancy. Process load may include
sensible and/or latent components. For data centers this includes transformers, UPS,
PDU, server fans, power supplies, etc.
Schedules (ProcElecPwrDens): Reference to a schedule that describes the fraction of
receptacle use on an hourly basis.
RadFrac (ProcElecPwrDens): The fraction of radiant heat gain to a space based on
appliance energy use.
LatFrac (ProcElecPwrDens): The fraction of latent heat gain to a space based on
appliance energy use.
LostFrac (ProcElecPwrDens): The fraction of heat lost to the exterior is based on
appliance energy use.
RfrgPwrDens: The amount of power supplied to a unit area for refrigeration.
Schedules (RfrgPwrDens): Reference to a schedule that describes the fraction of
refrigeration use on an hourly basis.
Natural Gas Use section
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GasEqpPwrDens: Commercial gas power density is the average power density for all
commercial gas equipment, assuming constant year-round operation.
Schedules (GasEqpPwrDens): Reference to a schedule that describes the fraction of gas
equipment use on an hourly basis.
ProcGasPwrDens: Process load is the gas energy consumption in the conditioned space
of a building resulting from an activity or treatment not related to the space
conditioning, lighting, service water heating, or ventilating of a building as it relates to
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