GREEN CAMPUS PROGRAM

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Alliance to Save Energys
GREEN CAMPUS PROGRAM
Today Decides Tomorrow
The Alliance to Save Energys Green Campus
Program is funded by the California ratepayers
under the auspices of the California Public
Utilities Commission.
Visit us on the web at www.ase.org/section/progra
m/greencampus/
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OFFICE ENERGY AUDITINGA Core Portfolio Project

• SESSION OVERVIEW
• Fundamentals of Electrical Energy Efficiency -
  why is an audit important?
• The Process
• Project Implementation
• Hands-on mini-Audits
• Wrap-Up

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ELECTRICAL ENERGY EFFICIENCY

• What is an energy audit?
• Why do an energy audit?
• Why the focus on electricity?
• What do I need to know to do an energy audit?

Bruce MacPherson
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ENERGY EFFICIENCY CONCEPTS

• Energy efficiency how much useful work we can
  get out of any system.
• Only 5 of the electricity used by an
  incandescent light bulb actually produces light

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ENERGY VS. POWER

• Watts (W) and kilowatts (kW)
• measure power, or the rate
• at which electrical work is performed.
• Watt-hours (Wh) and kilowatt-hours (kWh) measure
  energy, or the quantity of electricity used.
• Demand is measured in watts, Consumption is
  measured in watt hours.
• For example, a device requiring one watt of power
  to run will use one Wh during one hour.

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KILOWATT HOURS

• Find the watt rating of the device and divide by
  1000 to get kilowatts (kW).
• Estimate how many hours a day the device is used
  in a given period of time such as one month.
  Multiply this by kilowatts to determine
  kilowatt-hours (kWh).
• W/1000 x hours of use kWh

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ENERGY COSTS

• USING kWh TO FIGURE COSTS AND GHG
• 0.13 per kWh 1.5 lbs CO2 per kWh (EPA)

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PLUG LOADS

• Receive electrical power through a cord plugged
  into an outlet.

www.cartoonstock.com
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PHANTOM LOADS

• Many devices use power even when not in use
• Account for 6 of national energy consumption
  (DOE)
• Unplug or Power strip

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OFFICE LIGHTING SYSTEMS

• Components of office lighting systems
• Lamps (fluorescent, incandescent, halogen)
• Ballasts
• Fixtures
• Controls
• Adjustments to any of these components can reduce
  energy consumption.
• Daylighting also needs consideration.

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ENERGY EFFICIENCY CONCEPTS
HOW FLOURESCENT LAMPS WORK
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FLUORESCENT LIGHTING

• T12 AND T8 Most common overhead lighting in
  offices
• Differences in efficiency
• Compact Fluorescents for task and recessed
  lighting

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ANY QUESTIONS?

• Next Up - the process of a successful energy
  auditing project

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THE PROCESS OF A SUCCESSFUL PROJECT

• Internal Organization
• Training
• Tools
• PIP

Recruitment
Scheduling
Initial Walk-through
EE Measures
Present Report
Publicity
Return Visit(s)
Report writing
Follow-up
Data Analysis
Recommendations
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PLANNING COMPONENTS

• Who is your target?
• Who are your stakeholders?
• What will be the project time frame?
• What is the project budget?
• What are the available project tools and
  resources?
• How will you measure success?
• What are some potential Project Challenges?

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THE TOOLS WATT METER

• Use to determine energy consumption of
  office equipment, appliances, electronics
• Instantaneous (watts) or data-log (kWh)
• Operation Cost
• Phantom Loads

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THE TOOLS HOBO DATALOGGER

• Light on/off data logger senses presence or
  absence of light over period of time
• 64k memory can record 43,000 state changes
• PC or Mac connection
• www.onsetcomp.com

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THE TOOLS LIGHT METER

• MEASURES LIGHT LEVEL
• PHOTOMETRIC SURVEY
• ILLUMINATING ENGINEERING SOCIETY
• Paperwork - 30 FC
• Conference Room - 30 FC
• Restroom - 30 FC
• Corridors, lobbies, stairways - 10 FC
• Libraries - 30 FC

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THE TOOLS FLICKER CHECKER

• Determines Fluorescent lamp ballast type

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THE TOOLS ELECTRONIC BALLAST CHECKER

• Point at fixture
• Green light if electronic ballast
• Orange light if magnetic ballast

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OFFICE LOAD INVENTORY

• Collect data during walk-through and return
  visits
• Input data into spreadsheet
• Avg WattHr/day (Run Watts x Hrs/day x
  days/wk) x 1/7 Pload Watts x 24

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RECOMMENDATIONS

• Behaviors
• Controls
• Upgrades

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WHAT OTHER RECOMMENDATIONS CAN YOU MAKE AND
IMPLEMENT?

• BEHAVIORS
• CONTROLS
• UPGRADES
• How big is your budget???

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EE MEASURE RESOURCES

• Project Spaces!
• www.aceee.org
• www.energystar.gov
• www.eere.energy.gov
• www.flexyourpower.org
• www.bulbs.com
• www.efi.org (Energy Federation Incorporated)
• Others?

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REPORT CONTENT

• Express thanks for participation
• Keep it short and concise
• Summary of findings
• Summary of recommendations
• Include graphic illustrations of findings
• Attachments
• Are cost and GHG important?
• Description of next steps
• Your Contact information

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HOW DO WE MEASURE SUCCESS?

• Identified kWh savings vs. actual kWh savings,
  GHG and savings
• Building awareness, interest in saving energy
• Demonstrated collaboration with stakeholders
• Gaining publicity for the effort
• Recruitment becomes easy
• Interns learn something and have fun

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PROJECT EXTENSIONS

• Certificates and Signage
• Public Relations
• Follow-Up and tracking
• Energy Audit Trainings and Classes
• Classrooms, dorm rooms, houses and other
  facilities

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WRAP-UP

• ANY QUESTIONS?
• My Contact Info