Western Regional Pollution Prevention Network

Energy Efficiency Cal Broomhead

Department of Environment

City and County of San Francisco

sfenvironment.org

Energy Efficiency Is Important

• Reduces Global Warming

• Reduces local air pollution from power plants

• Reduces security risk of energy supply

• Reduces individual energy bills

• Improves the local economy

• Provides jobs

Improves Reliability

Principles of Energy Efficiency

• Proper maintenance of existing equipment

• Equipment turned off when not needed

• Equipment turned down to match loads

• High efficiency equipment

• Automatic controls optimize performance

Where to Look

• Lighting• Motors, Pumps, Fans, Compressors• Chillers• Refrigeration• Hot water• Steam• Process heat• Other appliances – plug load

Signs of poormaintenance:Ballasts still using energy but provide no light

P a g e 2

F i l t e r sF i l t e r s

N R E L P h o t o g r a p h i c I n f o r m a t i o n E x c h a n g e ,

U . S . D e p a r t m e n t o f E n e r g y ;

C r a i g M i l l e r P r o d u c t i o n s , 1 9 9 6

P a g e 4

B e l tB e l t -- d r i v e n F a n ( d i r t y )d r i v e n F a n ( d i r t y )

h t t p : / / w w w . e a g l e i h . c o m / i a q . h t m l

Page 7

Economizer dampersEconomizer dampers

P a g e 6

U nU n -- i n s u l a t e d r e f r i g e r a n t l i n e si n s u l a t e d r e f r i g e r a n t l i n e s

T h i s s u c t i o n l i n e i s i c e d u p

Fans and heaters correct a deficient HVAC system

Lights On When Not Needed

High Light Levels Unnecessary and Undesirable

Photo courtesy of NREL

Light Sources

Inefficient T12 Efficient T8

Light Fixtures

Photos courtesy of NREL

Inefficient- no reflector Efficient-w/reflector

Benefits to the Owner • Reduces maintenance problems• Reduces complaints by improving comfort• Reduces loads on existing distribution system• Improves reliability• Improves indoor air quality• Improves visual comfort• Improves safety and code compliance• Improves value of the facility• Makes facility users happier• Reduces energy bills

Resources

• Pacific Energy Center (PG&E) //www.pge.com/pec

• San Diego Regional Energy Office //www.sdreo.org

• American Council for an Energy Efficient Economy at //www.aceee.org

• Home Energy at //homeenergy.org

Energy Star

Vampire Loads