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Energy & AtmosphereLEEDing The Way to a Brighter Future at the IMU
Take the Extra StepInstall on-site
renewable energy sources
Metering towards Energy Improvements
H o w m u c h ? What? Where? When? Why?
Reasonable Reasons to Replace Old Equipment
Deferred MaintenanceCreate a Plan that Replaces Aging Refrigeration
Units with Energy Star Products on a Semi-Annual Basis
Use the Deferred Maintenance Costs & Direct Cost-Savings to fund the Replacement
Cost-Savings
Green Lights (2000)Installed 2159 electronic ballasts
and 3869 T-8 style fluorescent lamps for better efficiency.
Electricity: 247,557 kWh/yr Annual Savings: $20,547
DDC Retrofit of AHU (2000)Installed DDC controls on AHU-1
to replace pneumatic ones.Electricity: 38,491 kWh/yr
Steam: 290 MLB/yrChilled Water: 715 MMBtu/yr
Annual Savings: $22,570
*University of Michigan Cook W Research Library
The IMU can expect to save up to $170 annually per refrigerator and $120 per freezer in energy costs alone
(an energy savings of up to 35%)
Stage 1 "Green
Lights"
Stage 2Buildin
g Mechanical
System Tune-
up
Stage 3
(HVAC)
Load Reduction
Stage 4
HVAC Distri
bution Improvements
Stage 5
HVAC Plant Improvements
University of Michigan: Energy Saving Initiative
End of the program: Estimated $5.7 million annual savings.
Project Costs Millions Per YearGreen Lights Retrofit Measures $1.9 (over 5 years)Energy Conservation Measures $1.1 (over 6 years)Tune-up Personnel $0.6 (over 6 years)Tune-up Materials $0.4 (over 6 years)Engineering Support Staff $0.4 (over 6 years)
Nov-08 Dec-08 Jan-09 Feb-09 Mar-09 Apr-09 May-09 Jun-09 Jul-09 Aug-09 Sep-09 Oct-090
100000
200000
300000
400000
500000
600000
700000
Usage Trend Comparison (kWh) – UMU vs. IMU
UMU (kWh) IMU (kWh)
KWh/
mon
th
Although more consistent, the IMU’s kWh usage is not a result of systemic approach to energy management …ROOM FOR SAVINGS!
UMU IMU
Avg (kWh) 405,000 565,000
Std Dev (kWh) 54,000 36,000
– Phased Retrofits
– Hybrid High Cost/Low Cost Replacements
–Direct Utility Savings
–Deferred Maintenance ($)
– Performance Contracting
–Federal & State Grants (e.g. DSIRE, EERE)
Financing Energy Improvements
Being More than “Less Bad”
Oberlin replaced >50% of it’s coal use7 yr payback (energy savings)
4 year payback (CO2 reductions)
Ren
ew
ab
le E
nerg
y &
Hig
h E
fficie
ncy
Energy Efficiency & Performance Achieved through Energy Star’s performance rating LEED requires an energy performance rating of 69 >50% of Energy & Atmosphere LEED credits (15 pts) The higher the rating the higher the credits
Renewable Energy Recommend Solar Need 3% per point PV covered parking