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Energy Basics
What is the “Best” lighting
Proprietary Information Of Energy 2013
“Sic Semper Tyrannis”
Proprietary Information Of Energy 2013
What is the “BEST” Lighting?
The right light levels, at the right location, for the lowest cost
Proprietary Information Of Energy 2013
I have to save $ in my building, NOW WHAT?
• Lighting Technologies– Fluorescent– High Intensity Discharge– Solid State (LED)
• Lighting Controls• Lighting Design• Lighting Maintenance
Proprietary Information Of Energy 2013
Comparative Analysis
Source EfficacyLamp Life
Type (lm/W) (rated Incandescent Point 15 1,000 95% W 100 Y Y N
INC/Halogen Point 20 3,000 100% W 100 Y Y N
Fluorescent Linear 95 80,000 95% WMC 86 Y N Y
CFL Area 70 10,000 86% WMC 86 S N Y
PS MET. Hal. Point 100 20,000 85% WC 70 S N N
Ceramic MH Point 90 20,000 85% WM 92 S N N
HPS Point 110 24,000 90% W 21 N N N
Induction Area 80 100,000 75% WMC 80 N N N
White LEDs Projection 100 50,000 70% MC 75 Y N Y
Temp Sensitive
2Lamp Family LLD
Color
Temp.1CRI
Dimmabl
e2
Voltage Sensitive
2
Proprietary Information Of Energy 2013
Greatest Thing since Thomas Edison?
YES? NO? MAYBE?
Proprietary Information Of Energy 2013
The “BEST” measures for a lighting system?
• Approximately 50% of the equation for light levels is the lumens/watt.
• Approximately 50% is the environment those lumens sit in.
• What are the some other factors?– Cost– Lamp life– CRI/K temp– Heat
Proprietary Information Of Energy 2013
“BEST” Lighting
• T8!!– Lowest cost– Great energy savings– Flexibility– High burn hours– Legacy– Yes, they still have mercury.– Very low depreciation
Proprietary Information Of Energy 2013
LED?
• Still dealing with high cost• Efficacy is improving almost weekly, lm/watt
continue to rise.– Physics say it could get to 260 lm/watt, then we have
REAL energy savings.• Creates a legacy problem• Great for dimming.• Relatively low environmental impact.• Still dealing with BAD manufacturers and marketers.
Proprietary Information Of Energy 2013
LED Marketing
Proprietary Information Of Energy 2013
Effective Controls
• Turn the D#$& LIGHTS OFF!• Simple occ/vacancy sensors• Use Daylight, IT’S FREE!• Dimming, comfort and personal preferences
raise costs, evaluate carefully!• Can’t manage what you don’t measure, but
measuring and not managing is STUPID!
Proprietary Information Of Energy 2013
TRAINING
• Recent EE program test took place for K-12 in GA.
• Program took and existing training package, Building Operator’s Certification and applied it to K-12.
• First reported results, 6 months– 72% posted data– Savings, $124,000+(spend was $30,800)– Training PAYS for itself!
Proprietary Information Of Energy 2013
Questions?
E. W. DovelDiv. VP, Public Sector
Harris Lighting904-838-7980
