Amber Ackman, CUNY Building Performance Watch a video of this presentation and more at http://www.rebny.comLab

1. Title
Benchmarking Workshop
Using ENERGY STAR Portfolio Manager to
Satisfy NYC’s Greener, Greater Buildings Plan

2. Intro
Amber Ackman, LEED A.P.
Amber Ackman, LEED A.P.
Energy Consultant
Energy Consultant

3. What is ENERGY STAR?
A voluntary partnership between business and
government (EPA and DOE) which provides an
established framework to promote the
environmental and financial benefits of improved
energy performance
What is ENERGY STAR Portfolio Manager?
A Web-based interactive energy management tool
that allows you to track and assess energy and
water consumption across your entire portfolio of
facilities in a secure online environment

4. How does ENERGY STAR Portfolio Manager
Work?
Normalizes building variables
that affect energy consumption
•Weather
•How occupants use space
•Operating hours
•Occupant density
•Plug load (PCs/person)
Creates a whole building “mpg” rating from 1-100

5. How are Buildings Compared?
Commercial Building Energy Consumption
Survey (CBECS)
Similar buildings, of similar use in comparable
climate zones are compared to each other,
buildings are not being rated against other
buildings entered into ENERGY STAR Portfolio
Manager

6. How is an ENERGY STAR Rating
Determined?
EUI (Energy Use Intensity)-
EUI is calculated by taking the total energy consumed in
one year (measured in kBtu) and dividing it by the total
floorspace of the building.

7. What’s Needed to Benchmark a
Building?
• Portfolio Manager Username and Password
A master account is to be set up for you and individual
accounts for each client
• Client Contact and Organization Info
• Building Basics:
Street address, year built, contact information
• Building Gross floor area and Space Use
types
Office, data center, garage, etc.
• 12 consecutive months of utility bills for all
fuel types
Gas, electricity, steam, fuel oil

8. What information needs to be collected?
•General Building Information
•Address, year built
•Space Use Type Information
•Office, data center, garage
•Energy Use Information- 12 months
•ALL energy that served the building
•All energy meters and associated
account numbers

9. How do we satisfy the WATER
benchmarking requirement?
Water use will not be required until 2012 when the
Department of Environmental Protection has
installed citywide automated meter reading (AMR)
network

10. Where do we go to access ENERGY STAR
Portfolio Manager?

21. Data Center Definition
– ENERGY STAR score is for spaces specifically designed
and equipped for high density computing (server racks,
data storage silos, etc)
– Typically facilities with an Uninterruptible Power Supply
(UPS)
– Usually have dedicated cooling systems
– May include: traditional enterprise services, on-demand
enterprise services, high performance computing, internet
facilities, hosting facilities
– Typically about 30-50 kW electric load on the UPS
• EPA is working on an official size (energy) threshold
– Is not for
• Computer training classrooms
• Closet with LAN server

22. Data Center Tips
• IT Energy Estimates
– Intended for buildings with no IT meter(s)
– Only permitted for 2 years (until June 2012), after
which IT energy measurements are required
– Can only be applied to buildings with data centers
whose square foot is less than 10% of the total
energy
– Are permitted for label applications (until June
2012)
• Buildings are required to apply estimates and/or provide
measured IT Data
– It is not permissible to subtract the Data Center
space and energy

30. Adding Energy Use
Steam

31. Very Important Re: Steam
ConEd Bills list:
Mlbs. Steam
ENERGY STAR
Must input as Klbs.

45. Questions?