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BEAM P
LUS
I
NTERIORS
C
OMMERCIAL
, R
ETAIL
A
ND
I
NSTITUTIONAL
A
PPENDICES
9.1 A
SSESSMENT
F
RAMEWORK OF
E
NERGY
P
ERFORMANCE
Copyright © BEAM Society Limited. All rights reserved. Page 128
Figure 9.1
Energy performance assessment
K
EY
F
EATURES
The key features of the Performance-based Approach are listed as
follows.
i.
the ‘Energy Budget’ for an ASSESSED PROJECT SPACE is
the predicted Annual Energy Use for a BASELINE INTERIOR
SPACE (zero-credit benchmark);
ii.
the BASELINE INTERIOR SPACE model has the same shape
and dimensions, comprises the same mix of areas and types
of accommodation as the ASSESSED PROJECT SPACE;
iii.
the BASELINE INTERIOR SPACE model will incorporate a
range of standard (default) characteristics such that the model
represents an area whose energy performance barely meets
the relevant regulatory requirements or meets only ‘basic’
design quality;
iv.
as far as possible the predicted Annual Energy Use of the
ASSESSED PROJECT SPACE will be based on its specific
design characteristics;
v.
the number of credits achievement is determined by the
percentage reduction in the predicted Annual Energy Use of
the ASSESSED PROJECT SPACE relative to the BASELINE
INTERIOR SPACE where HVAC&R and lighting are
ASSESSMENT OF ANNUAL ENERGY USE
BASELINE INTERIOR SPACE
(SIMULATION)
SHAPE, DIMENSIONS, ORIENTATION,
ENVELOPE, MIX OF AREAS, TYPES OF
SYSTEMS SAME AS ASSESSED
BUILDING
DEFAULTS CHARACTERISTICS:
BARELY MEET MINIMUM
PERFORMANCE CRITERIA IN
CODES/STANDARDS OR ‘BASIC’
PREDICTED ANNUAL ENERGY USE OF
ASSESSED INTERIOR SPACE
(SIMULATION)
SHAPE, DIMENSIONS, ORIENTATION,
ENVELOPE, MIX OF AREAS, TYPES OF
SYSTEMS
SPECIFIC DESIGN
DESIGN ENHANCEMENTS NOT
INCLUDED IN BASELINE INTERIOR
SPACE
SIMULATION
+
APPLICABLE DEFAULTS
PREDICTED ANNUAL ENERGY USE OF
A/C & LIGHTING
ENERGY BUDGET FOR ASSESSED
INTERIOR SPACE
ZERO-CREDIT BENCHMARKS FOR
ANNUAL ENERGY USE
PERCENTAGE REDUCTION IN ANNUAL ENERGY USE
(AC & LIGHTING ARE SEPARATELY ASSESSED)
ANNUAL A/C & LIGHTING ENERGY USE CREDITS ACHIEVED RESPECTIVELY
FOR THE ASSESSED INTERIOR SPACE