User Manual

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4.5.3. Detailed BACS efficiency factor for lighting and
auxiliary energy
Factors for non-residential building types are available as detailed factors accounting for different
BAC impacts on energy performance of electricity for lighting and auxiliary energy.
Non-residential building types
Detailed BACS efficiency factors f
BAC,el,L
and f
BAC, el,aux
D C B A
Non energy
efficient
Standard
(reference)
Advanced
energy
efficiency
High energy
performance
f
BAC,el,L
f
BAC,el,aux
f
BAC,el,L
f
BAC,el,aux
f
BAC,el,L
f
BAC,el,aux
f
BAC,el,L
f
BAC,el,aux
Offices 1.1 1.15 1 1 0.85 0.86 0.72 0.72
Lecture halls 1.1 1.11 1 1 0.88 0.88 0.76 0.78
Educational buildings (schools) 1.1 1.12 1 1 0.88 0.87 0.76 0.74
Hospitals 1.2 1.1 1 1 1 0.98 1 0.96
Hotels 1.1 1.12 1 1 0.88 0.89 0.76 0.78
Restaurants 1.1 1.09 1 1 1 0.96 1 0.92
Wholesale and retail buildings 1.1 1.13 1 1 1 0.95 1 0.91
Other types:
· Sport facilities
· Storage
· Industrial facilities
· etc.
– – 1 1 – – – –
4.6. Guideline for using BACS for EMS
This chapter explains how to apply and use BACS (Building Automation and Control System
including TBM (Technical Building Management) for an EMS (Energy Management System) in
buildings.
EMS as specified by EN ISO 50001 is intended to improve energy performance by managing energy
use systematically. EN ISO 50001 sets forth the requirements for continual improvement in the form
of more efficient and sustainable energy use for production/process, transportation and buildings.
The use of BACS encourages different levels and functions of the organization by implementing the
EMS in buildings and simplifying and significantly improving the continual EMS process in buildings.
The following table outlines BACS options, requirements and functions to support implementation
and processing of EMS in buildings.