This document discusses how latest energy efficiency technologies can save 10-30% more on costs compared to older technologies. It highlights technologies like HVAC upgrades, lighting upgrades, and building controls that can reduce energy use by 25-50% and pay for themselves within 3 years. The document provides examples of organizations that achieved significant savings and payback periods from various efficiency projects involving HVAC, lighting, and building control upgrades.

1. a report from
Energy Efficiency Group
Tomorrow’s Energy Technologies Today
www.energyefficiencygroup.net

2. If you have a mandate to further reduce costs … and you’ve
already done most all you can to cut costs, what is possible?
 Generally save 10%-30% more with “latest” technologies
 Generally qualify for rebates up to 70% of project cost
 Enjoy 25% to 50% R.O.I.
 Recover investment from savings in 12 to 36 months
 Complete projects with no cash outlay
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3. Delivered commercial energy consumption per capita - from DOE/EIA Annual
Energy Outlook 2006
Department of Energy data
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4. Delivered commercial energy intensity (variation from reference case) - DOE/EIA
Department of Energy report depicting impact of taking
advantage of the “best available technology” to cut cost.
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5.  Added savings of 8% to 12% for facilities already highly efficient
 Savings of 25% to 50% for facilities not yet energy efficient
 HVAC…save to 50% with compressor and controls, CO
and CO2 sensors, EMS, and HVAC ultraviolet systems
 LIGHTING …save to 70% for buildings, garages, and street lights
with latest fluorescent, LED, and induction lighting, and controls
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12. Installs at A/C coil to cut energy cost, improve IAQ, eliminate coil cleaning
Florida Hospital emitters
enhance IAQ and infection
control, save maintenance
and downtime. The
substantial energy savings
are a great bonus.
— Florida
Hospital, Orlando, Flor
ida
UVC installation downstream of A/C coils
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13. UVC cleans dirty coils and restores like-new performance
We have eliminated our four-
time per-year coil cleaning
program and estimate a
conservative 28% drop in
A/C system energy usage.
Steril-Aire UVC emitters
— American Electric
Power, Dallas, Texas
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14. Microscopic amounts of coil fouling significantly reduce efficiency
1. All A/C attracts mold Fouling Efficiency
and fouls coils.
Thickness Loss
2. Cleaning only removes
surface fouling. .006” 16%
3. Coil fouling reduces heat
.012” 20%
transfer and air flow.
.024” 27%
.036” 33%
.064” 50%
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15. UVC cleans coils and greatly improves indoor air quality
Coil fouling is
demonstrated with
samples taken from coils.
Installed in coil
plenum, UVC eradicates Sample of fouling taken before Steril-Aire
bacteria and mold.
— Air Conditioning/
Heating/ Refrigeration
News
Sample with no fouling after Steril-Aire
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16. Stop the spread of infectious disease through A/C delivery
system
UV disinfection works by
penetrating cell walls of
pathogenic organisms and
structurally altering
DNA, thus preventing cell
replication.
— U.S Environmental
Protection Agency
UVC light is so intense that it destroys DNA
of viruses and other microorganisms
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17. Elimination of excess outside air ventilation for major energy savings
The City of Seattle has
standardized on the AirTest
CO2 sensor… although there
was significant savings on
cooling cost, the big savings
was on heating costs.
— Seattle City Light
CO2 sensors placed in zones
throughout building
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18. Elimination of excess outside air ventilation can save up to 20%
The cost for heating or
cooling of excessive
outside air for building
ventilation can be up to
20% of HVAC cost.
There are occupancy
variations and excess
ventilation over design
in most buildings.
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19.  Building air intakes are not measured and the delivery of outside air
is not controlled, generally resulting in significant over-ventilation.
 Most buildings are over-ventilated 200% to 400% in excess of actual
need., especially those with significant occupancy swings .
 CO2 system determines real-time occupancy throughout the building
and adjusts outside air to match the need and cut HVAC cost 5- 20%.
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20. Latest advance in electrochemical sensor technology
Fan run time reduced from 24
hours to about 45 minutes
per day – over 90%
reduction with a simple
payback of 18 months.
— CB Richard
Ellis, Westwood Plaza
CO sensor installed in parking garage
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21. Garage fan run time reduced by 90% at Trident Center
Total demand reduced from
67 kW before installation
to 7 kW after
installation, for a
reduction of 90%. The
project had a simple
payback of 12 months.
— Trident Center
Project
Summary, California
Energy Commission
Control unit
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22.  Fans typically run continuously when enclosed garages are open.
 Generally, CO level may require fans about 10% of the time.
 CO sensors operate fans only when necessary to keep CO from
reaching unhealthful levels to produce typical 80% to 90% savings.
 VFDs on fans maintain constant base level of ventilation
and only increase fans to levels necessary if CO is present.
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23. Turbocor oil-free compressor retrofit reducing HVAC costs to
70%
This revolutionary technology
provides efficiencies up to
30% better than any other
compressor in its size range
in addition to being
extraordinarily quiet and
virtually vibration free.
— 2003 AHR Expo
Innovation Awards
Turbocor oil-free compressor
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24. Oil-free compressor with VFD and magnetic bearings
Based on test results, 30-40%
energy savings over
reciprocating air-cooled
compressor technologies
are realistic.
— San Diego Regional
Energy Office
Turbocor compressor installed on
88-ton York air-cooled chiller
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26.  With built-in VFD, Turbocor matches
cooling load at 60 tons to 700 tons +
 Compact (approx.1/5 ordinary size)
 Light (Less than 270lb)
 Quiet (less than 70dB at full load)
 Virtually frictionless (magnetic bearings)
 On board digital electronics
 Highly energy efficient and oil-free
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29. ASHRAE research study 601
Loss of Efficiency
The vast majority of
installed chillers have
an excess amount of
oil in the cooling
system.
The refrigerant charge
oil requirement of
compressors reduces
system efficiency often
over 20%.
Percent Oil in the System
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30. In ten (10)
Percent Oil in System
chillers
tested in the
ASHRAE
study,
average oil
system
overcharge
was 12.88%,
for average
21% energy loss.
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31. Percentages of time equipment operates at varying
load factors of comfort cooling for various climates
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32. Visibly clear film reduces solar heat to
50% without changing building appearance
Tinted films reduce solar heat 50% to
80% and reduce glare
Reflective films reduce solar heat 80%
Graffiti protection film protects
windows from vandals
Security film protects against shattering
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33. Infrared heat and U.V. rays
increase air conditioning
cost, create discomfort, and
cause fading.
Visually clear, tinted or
reflective solar protection
film can reduce up to 80%
of solar heat and block up
to 99% of U.V. rays.
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34.  Determine big picture of “what is possible” energy
savings and return-on-investment targets
 Complete detailed assessment of facilities, develop and
evaluate energy savings options, and economic analysis
 Develop Opportunity Report of action and economics for
one-stop, concept through completion energy strategy
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35. Energy Efficiency Group
Tel: 310 770 9930
Tel: 818 674 1418
E-mail: info@energyeffiencygroup.com
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