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Energy Basics. What is the “Best” lighting. “Sic Semper Tyrannis”. What is the “BEST” Lighting?. The right light levels, at the right location, for the lowest cost. I have to save $ in my building, NOW WHAT?. Lighting Technologies Fluorescent High Intensity Discharge Solid State (LED)
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Energy Basics What is the “Best” lighting
What is the “BEST” Lighting? The right light levels, at the right location, for the lowest cost
I have to save $ in my building, NOW WHAT? • Lighting Technologies • Fluorescent • High Intensity Discharge • Solid State (LED) • Lighting Controls • Lighting Design • Lighting Maintenance
Greatest Thing since Thomas Edison? YES? NO? MAYBE?
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
“BEST” Lighting • T8!! • Lowest cost • Great energy savings • Flexibility • High burn hours • Legacy • Yes, they still have mercury. • Very low depreciation
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.
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!
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!
Questions? E. W. Dovel Div. VP, Public Sector Harris Lighting 904-838-7980 firstname.lastname@example.org