Transcript Slide 1

ENERGY STAR for
Commercial Buildings –
A Best Practice in Energy
Efficiency
Alyssa Quarforth
ENERGY STAR Commercial Properties
September 25, 2008
3 Take Away Points
Benchmark, Benchmark,
Benchmark!
Don’t forget the importance of O&M
Be proactive through voluntary
efforts
ENERGY STAR is….
A voluntary public-private
partnership program
A strategic approach
to energy management
Energy efficient practices and products
Recognized by over 70% of Americans
An internationally recognized brand
Also recognized in Australia,
Canada, Europe, and Japan
ENERGY STAR for
Commercial Buildings
 Nearly 30 percent of Fortune 500 companies are
ENERGY STAR partners
 Over 71,000 buildings, representing about 9.5 billion
square feet of space, have measured their energy
performance with ENERGY STAR
 On average, ENERGY STAR buildings use 40 percent
less energy than average buildings and emit 35% less
carbon emissions
 CoStar reports “ENERGY STAR office properties gross
higher rents and higher occupancy rates than their nonENERGY STAR counterparts.”
Success Stories
• PepsiCo has saved more than $250 million since the
inception of its corporate energy management program
in 2000
• Transwestern has invested $68 million in energy
efficiency upgrades while increasing the asset value of
its building portfolio by nearly $750 million
• Food Lion’s energy savings since 2000 are equal to the
energy needed to power 450 virtual stores, as if 37% of
its chain uses no energy at all
• Davenport Community School District reduced the
annual energy cost per student to $88 compared to the
national average of $181 per student
• Marriott’s savings in 2006 equal a reduction in operating
costs of 10 cents per occupied room night
Energy as a Percentage of Total
Office Building Operating Expenses
Energy 28%
Repairs &
maintenance
23%
Janitorial
18%
Roads, grounds, &
security
12%
Administrative
19%
Data based on BOMA Experience Exchange Report
(Average of Urban & Suburban Non-Government Buildings)
ENERGY STAR Provides a
Standardized Metric
ENERGY STAR Energy Performance Rating…
 Provides a standardized, comparable metric of whole building energy
performance
 Compares the energy efficiency of one building against the energy
efficiency of a representative sample of similar buildings (according to
CBECS survey)
 Uses a simple 1-100 “score” where 50 is an average building
 Normalizes for factors such as weather, occupancy,
operating hours, and other building-specific characteristics
Benchmarking becomes a business
practice – setting priorities
Best investment opportunities
are in lower quartiles greatest potential for
improvement
Invest &
Tune
Invest
1
25
High scoring
buildings provide
lessons learned
and label
candidates
RCx & O&M
improvements
yield savings and
label candidates
Reward &
Learn
Tune
50
Energy Performance Rating
75
100
8
Five Stage Approach
Benchmark to show cost,
energy and carbon emission
savings
Equipment
Controls
Lighting
Occupants’
Behavior
O&M
Benchmark 
Benchmark

Benchmark 
Benchmark 
Other Opportunities with
Portfolio Manager:
• Set baselines and target ratings, monitor progress toward
goals and impact of energy and water efficiency
improvements
• Manage applications for ENERGY STAR labels and building
profiles
• Track carbon inventory
• Perform financial and environmental assessment of
behavioral changes and capital improvements (BUVC)
• Monitor impact of property manager performance
• Demonstrate increased value to clients and tenants
Is Your Building Performing Well?
Is 80 kBtu/SF/YR high or low
for a building?
Energy
Performance
Fuel Efficiency
MPG
Is 18 MPG high or low for
an automobile?
EPA
Benchmarking
Myth #1: Age Matters
My building is new, so I
know it’s energy efficient.
Number of Buildings
New Doesn’t Always Equal Efficient
Top performing
buildings use 3 to 4
times less energy
per ft2 than the
worst performers.
39% of
buildings
with a rating
of 75 or
better are
less than 25
years old
42% of
buildings
with a rating
between 25
and 74 are
less than 25
years old
90
75
50
25
29.9
86.0
121.1
165.7
Best Performers
Newer buildings are
equally represented
across all quartiles.
35% of
buildings
with a rating
between 0
and 24 are
less than 25
years old
Based on a sample
of 4,000 buildings
nationwide.
10
1
339.4
EPA Performance Rating &
Worst Performers
Energy Intensity
(kBtu/ft2-year)
Myth #2: Technology Matters
I installed energy efficient
technologies, so I know
my building is energy
efficient.
Technology does not guarantee
energy efficient performance
Technology Doesn't Always Equal Performance...
100%
75%
50%
`
25%
ENERGY STAR
1999 - 2001
61.4 kBtu/ft2/yr
0%
CBECS
Bottom 25%
226.3 kBtu/ft2/yr
Note: “CBECS” is the Energy Information Administration’s Commercial Building Energy Consumption
Survey, http://www.eia.doe.gov/emeu/cbecs/contents.html
If you’re still not convinced
that benchmarking energy
use is a good idea…
20 Similar Buildings – 20 Different
Energy Use Patterns
20 Similar Buildings – Different Energy Use
Improving Operations and
Management Strategies
1900 K Street, Washington DC
 New Construction (1996) with energy efficiency in mind but
oversized equipment
 EPA Rating
 In 1999  32
 In 2006  78
 Harnessed building automation systems to improve
efficiency




VFDs on chillers to match measure demand
Improved operating standards – static pressure set points
Continuous tracking of energy use using EPA’s rating system
Improvements to lighting systems
 Savings reflect synergy between building technology and
energy management practices
Making the Most of the Staged
Approach
International Square Case Study
• Lighting retrofit and new VFD’s first
• As a result of the reduced heat load, two
3,800 ton chillers were replaced with two
3,400 ton chillers
ENERGY STAR Energy Performance Rating = 84
Cost
Cost / sf
Annual
Savings
Annual
Savings
/ sf
Payback
ROI
Asset
Value
Increase
Annual
Energy
Savings
$577,397
61¢
$241,500
26¢
2.4 years
42%
$3 mil
3 mil
kWh
Current Legislation
Be proactive and ahead of legislation…..
Current Legislation including Energy Star benchmarking
(examples):
–
–
–
–
–
–
–
–
–
State of California: Bill AB 1103
District of Columbia: The Green Building Act of 2006
State of Illinois: Senate Joint Resolution 27
State of Ohio: Executive Order 2007-02
State of Minnesota: The Next Generation Energy Act of
2007
City of Denver, CO: Mayor's Executive Order 123
Borough of West Chester, PA: Borough Ordinance
State of Virginia: Executive Order 48
State of Michigan: Executive Order 2005-4
Washington, D.C. – Mandatory Benchmarking
and Disclosure for Existing Buildings
Clean and Affordable Energy Act of 2008
All privately-owned buildings shall be benchmarked
annually using the Energy Star® Portfolio Manager
benchmarking tool . . . Benchmark and Energy
Star® statements of energy performance for each
building shall, by January 1 of the following year, be
made available to DDOE. DDOE shall, upon the
receipt of the 2nd annual benchmarking data for
each building, make the data accessible to the
public via an online database.
http://www.dccouncil.washington.dc.us/images/000
01/20080819161530.pdf
Get Started Now
• Start benchmarking with Portfolio Manager
(www.energystar.gov/benchmark )
• Share your information DC BID and BOMA
Master Account
• Sign up for your next training
(www.energystar.gov/training ):
– Oct 8th 1pm: Office Buildings – Rating Energy Performance
with Portfolio Manager
– Oct 15th 1pm: Commercial Real Estate – Best Practices in
Energy Efficiency
• ENERGY STAR Quantity Quotes
(www.quantityquotes.net )
Contact Information
Further Questions?
Alyssa Quarforth
Program Manager
ENERGY STAR Commercial Properties
Climate Protection Partnerships Division, US EPA
[email protected]
Email questions to: [email protected]
Visit our website:
www.energystar.gov