Dimensions - Summer 2017 - 3
know l e dge
Using
Triple Bottom
Line Analysis
to
Inform
Design
Principal and National Sustainability Director Lidia
Berger, MEM, LEED Fellow, LEED AP BD+C, LEED AP
O+M, ENV SP, defines the importance of incorporating
benefit-cost analysis into the sustainable design process.
How is triple bottom line analysis
effective for LEED® certification?
How have you implemented
this in the design process?
The triple bottom line (TBL) is a benefit-cost analysis
Utilizing SROI analysis positively impacts our design
that evaluates the financial, social, and environmental
decisions for sustainable projects. In a recent renovation
values of a project. The new LEED Pilot Credit (SSpc113)
project influenced by LEED design, the team explored
uses TBL analysis with LEED design strategies by
how workplace and energy-efficient improvements
measuring the incremental benefits and costs when
translate into TBL returns over the 30-year lifespan
pursuing credits.
of the project. We calculated the impacts produced by
The results are based on the level of impact from each
the investment in energy and water efficiency, and IEQ
credit analyzed against the TBL framework. The analysis
improvements and CWM to determine the net present
uses the sustainable return on investment (SROI) process
value (NPV) of benefits for the owner and building
that incorporates research-based economic approaches
occupants. Our results determined that the project's
to determine the monetized value of a project's TBL. SROI
sustainability enhancements will have a positive NPV
identifies benefits for the client as well as society and the
and a total benefit of approximately $2.6 million over
environment, creates a strong business case backed by
the 30-year lifespan, a yield of $5.50 value for each $1
data, and offers the flexibility to prioritize design elements.
invested in LEED-compliant upgrades.
The SROI analysis calculates the TBL benefits for
environmental quality (IEQ) improvements and
What technology is used
for these analyses?
construction waste management (CWM); incorporating
Impact Infrastructure's Autocase software models the
capital and replacements costs; and the monetized value
costs, benefits, and risks of sustainable investments using
for potential social and environmental impacts. Upon
TBL cost-benefit analysis. It provides real-time feedback on
completion, this analysis communicates the incremental
a design's financial, social, and environmental value. The
costs and benefits of achieving each LEED credit.
tool is valuable in the design process and helps prioritize
strategies such as energy and water efficiency, indoor
sustainable benefits while staying within budget.
Summer 2017
3
https://www.youtube.com/watch?v=L_rrsipSLbQ&t=18s&list=PLdda-FN5Ovzi-Y_Qmrt1jAjE2Dif51eJT&index=14
Table of Contents for the Digital Edition of Dimensions - Summer 2017
In This Issue
Dimensions - Summer 2017 - Cover1
Dimensions - Summer 2017 - In This Issue
Dimensions - Summer 2017 - 1
Dimensions - Summer 2017 - 2
Dimensions - Summer 2017 - 3
Dimensions - Summer 2017 - 4
Dimensions - Summer 2017 - 5
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Dimensions - Summer 2017 - 7
Dimensions - Summer 2017 - 8
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Dimensions - Summer 2017 - 17
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Dimensions - Summer 2017 - 27
Dimensions - Summer 2017 - 28
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