Demand Side Energy Management & Conservation Lighting Retrofits The University of Texas at Austin
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Transcript of Demand Side Energy Management & Conservation Lighting Retrofits The University of Texas at Austin
Demand Side Energy Management & ConservationLighting RetrofitsThe University of Texas at Austin
The University of Texas at Austin
• Founded in 1883 – some infrastructures more than 100
years old
• ~ 22 million gross square feet
• 427 acres of Main Campus + 400 acres at Pickle Research
Campus
• ~50,000 students and ~20,000 faculty and staff
University Profile
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Energy Use and Production
• Generate our own electricity for main campus• Purchase water and natural gas• Estimated annual costs for FY 2009/10 greater than
$38 million
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Energy Use and Production
Main Campus Demand
5
844682
25%
875052
25%
171595950%
Electric Steam Chilled Water
222741052%
109381526%
965229.7
523%
Electric Steam Chilled Water
Campus Use (MMBTU)
Campus Use – Production (MMBTU)
Focus on Electricity and Steam Reductions
• Electric: Fixture, lamp & ballast replacement, occupancy sensors
• Water: Fixture replacement, aerators, flush valves, shower heads
• Steam: Steam trap & valve replacement or repair
What We Accomplished – Lighting, Steam & Water
Project Cost Annual Avoided Costs Simple Payback
Lighting $12.2M $1,888K 6.5 Yrs
Water $1.7M $611K 2.8 Yrs
Steam $1.2M $235K 5.1 Yrs
Total $15.1M $2.8M 5.6 Yrs
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DSEMC Retrofit Projects
Conducted full inventory of 122 E&G buildings
Utilized Federal Energy Management Program (FEMP) guidelines
Developed project measurement and verification procedures
Sampled existing conditions
Measured performance factors (e.g., watts/fixture, gallons/flush)
Estimated and verified savings at building level
The ProcessAudit, Measurement & Verification
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Lighting Project
• Renewed or replaced more than
200,000 lighting fixtures
• Installed 2,300 lighting occupancy
sensors
• Recycled 471 tons of materials
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Case Study Example
Lighting ProjectEnergy Conserving Lighting Products
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Ceiling Mounted Occupancy Sensor
T12 Lamp (Top) vs. T8 Lamp (Bottom)Electronic Ballast
Photo Referenceshttp://www.allproducts.com/http://ep.yimg.com/http://news.thomasnet.com/http://www.hk-phy.org/
Benefits
• $1.9 million per year in lighting savings
• 25 million KWh per year in electricity
• More than 21 million pounds of CO2E emissions
avoided
• Lamps and ballasts warranties
• 39% reduction in project areas
Electricity for1,500 average
homes
Source: City of Austin
Lessons Learned
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FY2004 FY2005 FY2006 FY2007 FY2008 FY2009 FY2010 FY20113,000,000
3,500,000
4,000,000
4,500,000
5,000,000
5,500,000
MMBTU - No DSEMC MMBTU - DSEMC
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Lessons LearnedMain Campus Production – Plant Input
1%MM
BT
U
Project Manager
Professional ServicesProvider
Water
Lighting
Steam
Project Coordinators
Management
Inspection and Coordination
Contractors
aCAT
cCAT
lCAT sCAT wCAT uCAT
Executive
Implementation and Oversight
Teams
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Lessons LearnedEffective Communications
Project Management
Conservation Action Teams
• Design Build – Very Effective
• Cautious use of energy “savings” as funding strategy
• Leverage for Auxiliary Organizations
• Communications as important as “savings”
• Lighting is an “emotional” issue
• Revisit Lighting Standards
– Energy / Maintenance / Client Expectations
– Are we “agile enough” for the technology
Lessons Learned
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Questions?
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