Section 3: Synergistic Credits
Summary of First Cost Impacts
Courthouse: Credit SN-3
Individual Credit Costs
Combines:
Credit EA-1
Credit EA-1(5) .......................................... 6,101
Optimize Energy Performance
Credit EQ-1................................................. ,876
Credit EQ-1
Synergistic Credit SN-3
Carbon Dioxide (CO2) Monitoring
Total Credit Cost ...................................... 6,101
Cost Impact ($/GSF)............................89/GSF
Cost Impact (%) ............................................1.32%
Description
Credit SN-3 reflects a synergy that is available
Applicable Scenarios
when designing carbon dioxide (CO2) monitoring
systems. The synergistic credit scenario is based on
Credit SN-3 is used in the Courthouse scenarios
the installation of CO2 sensors in variable
4A (Silver), 5A (Gold), and 6A (Gold).
occupancy spaces, and at the end of major duct
runs, to earn credit EQ-1. Additional controls
programming is provided for the building
management system (BMS), which allows the CO2
sensors to be used for demand control ventilation.
The demand control ventilation contributes to the
35 percent energy savings that earns 5 points under
credit EA-1. Overall, six LEED credits are
achieved through this synergistic combination.
Basis for Cost Assumption
The synergistic cost for credit SN-3 is the cost of
the individual credit EA-1 (5) in its entirety--the
costs for the CO2 monitoring system of credit EQ-
1 are already included.
GSA LEED COST STUDY
170
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