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UNCLASSIFIED
Utility Energy Savings
Contract Project Redstone Arsenal, Alabama
Presented by
Doug Dixon, Pacific Northwest National Laboratory
For Mark D. Smith, PE, CEM, CEA
Energy Manager, Redstone Arsenal
Federal Utility Partnership Working Group - Fall 2010
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UNCLASSIFIED
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UNCLASSIFIED
0
50
100
150
200
250
Klbs
FY09 Total Hourly Steam
FY09 Total
Threshold
$22.76 / MMBTU
(Minimum take-or-pay base rate)
(Consumer Price Index)
Average FY09
Natural Gas Price
$5.52 / MMBTU
$16.91 / MMBTU
(High capacity rate)
(Petroleum Price Index)
Hours
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Resolution
• Manage the steam load to the minimum take-or-
pay thresholds under the existing contract.
Prune the distribution system by eliminating
long runs with low density and high thermal
losses.
Ensure summer steam loads are utilized.
• Cooling – Absorption chillers
• Domestic hot water
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UNCLASSIFIED
Method
• UESC with TVA
Decommissioned four miles of existing steam service and
installed a natural gas distribution system.
Audited 44 buildings for feasible energy conservation
measures.
Lighting
Controls / Energy Management System
HVAC upgrades
Insulation
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Method
Project
Cost
Energy
Savings
Simple Pay
Back
Meter
Group A
$9,823,367 $1,411,825 7 yrs
Monthly payment amount - $111,975 – 120 months
Monthly savings - ~$117,652
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UNCLASSIFIED
Method
• Key Components
Commissioning Agent
Project documentation and design adherence
Quality Assurance and Engineering
Monitor maintenance and energy savings as part of
the performance assurance plan
Measurement and Verification
One year
Preventative Maintenance
Three years
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UNCLASSIFIED
Commissioning Agent
• Independent Third Party
• Involved through entire project implementation
process
– Design
– Construction
– Acceptance
– Warranty
• Provided final commissioning documentation
• Funded through UESC project (About 1.5% of total
project cost)
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UNCLASSIFIED
Commissioning Scope
Design Phase Commissioning
Basis of Design evaluation
Construction Document evaluation
Construction Phase Commissioning
Submittal and Shop Drawing Review
Start-up procedure Submittals
Site Observations
Pre-Functional Tests
Project Issues Log
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Commissioning Scope (cont.)
Acceptance Phase Commissioning
Functional Performance testing
O&M Manual
Training and Orientation
Final Commissioning Report
Warranty Period Commissioning
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UNCLASSIFIED
Commissioning Benefits
Eyes in the field to protect government interests
Project issues log that required resolution prior to
systems acceptance testing
Acceptance testing to insure proper operation of all
systems
Final documentation of all tasks, findings, and actual
building systems performance
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UNCLASSIFIED
0
50
100
150
200
250
Klbs
FY09 Total Hourly Steam
FY09 Total
Threshold
3046 HDD
Hours
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UNCLASSIFIED
0
50
100
150
200
250
Klb
sFY10 Total Hourly Steam
FY 10 Total
Threshold
3338 HDD
Hours
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UNCLASSIFIED
Direction
• Award second UESC task order for Steam
Decentralization meter group B
Include commissioning agent
• Audit government owned boiler plants / distribution
system and associated buildings
• Conduct Audits for reimbursable customers
• Re-commission Major Existing Facilities
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UNCLASSIFIED
Questions?