Energy efficiency for
better business
Roger Spring, President
Agenda
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Welcome
Benefits
Federal Regulations
T12 to T8
T8 to Reduced Wattage T8
Technologies
New Technologies: LED
Questions
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Benefits
Benefits
• Reduce controllable operating costs
• Leverage incentives to upgrade facility
• Green factor
• Value sustainability
• Reduce carbon footprint
• Environmentally responsible
• Improved quality of light for employees
and customers
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Cost savings
= kWh x kWh rate = $
100 watt Incandescent
100 x 2,600
1,000
= 260 kWh x 5¢ = $13.00/year
26 watt Compact Fluorescent (CFL)
26 x 2,600
1,000
= 67 kWh x 5¢ = $3.35/year
Incandescent vs. Compact Fluorescent
Incandescent
10x $13.00 = $130
Compact Fluorescent (CFL)
10 x $3.35= $33.50
Save nearly $100 per year!
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Cost savings
Information provided by
Cost savings
Information provided by
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Return on investment (ROI)
• On average lighting projects are the quickest
payback
• ROI choices / improvements
Financial analysis
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Hidden Benefits of a lighting upgrade
• Cooling Savings
• 5% to 10% possible
• KW Demand Savings
• Lighting Load normally coincides with peak load
• Productivity improvements
• Lighting energy costs
– ($1 per sq. ft)
• People costs
– ($100+ per sq. ft)
• Often difficult to quantify – (1% to 2%) gains are significant
• Safety Improvements
• Hazards, Security, Way finding
• Maintenance Costs
• Virtually nothing for several years
Information provided by
Federal Regulations
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Incandescent “A” lamp & Reflector lamp
Effective January 1, 2012
• New efficiency standards (Lumens per watt)
• Eliminates most general-service incandescent lamps
• Including manufacture of CFL, LED, incandescent or halogen
• Minimum color rendering index (CRI) of 80
• Minimum Rated Lifetime = 1,000 hours
E.I.S.A - 2007 – Amendment
New lumens per watt requirement for lamp manufacturers:
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T12 to T8
Common fluorescent retrofits
• 2’ & 3’ and U-bent T12 lamps to T8
• 4’ T12 to high-performance T8*
• 8’ T12 to 4’ high performance T8 lamps*
*Most utilities require that 4’ T8 lamps and ballasts
meet Consortium of Energy Efficiency (CEE) high
performance T8 specifications www.cee1.org
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Sample Office
15,000 sq ft office space
Burn hours = 12 hours per day, 5 days per week
Existing equipment
• (126) 2x4 4-lamp T12 recessed acrylic lens troffers
Retrofit/upgrade options
• 2-lamp High Performance T8 lamp/ballast
• 2-lamp High Performance T8 lamp/ballast/reflector kit
• 2-lamp High Performance T8 lamp/ballast/HP lens/louver kit
• NEW fixtures
Results
• 36,895 estimated annual kilowatt hour energy savings
• $2,832 estimated annual energy cost savings
Need more kWh savings?
Lithonia
Add Controls
Sample Retail
Existing equipment
• (221) 2x4 4-lamp T12 acrylic lens troffers
Retrofit/upgrade options
• 2-lamp High Performance T8 lamp/ballast
• 2-lamp High Performance T8 lamp/ballast/reflector kit
• 2-lamp High Performance T8 lamp/ballast/HP lens/louver kit
• NEW fixtures
Results
• 124,909 estimated annual kilowatt hour energy savings
• $9,393 estimated annual energy cost savings
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T12 to T8 projects
Before
After
Sample Warehouse
Existing equipment:
• 8’ slim line T12
• 8’ T12HO
• Incandescent
Retrofit/upgrade option:
• Retrofit existing T8 strips with reflector kit
• Mixture of 4&6 lamp T8 hibay with NBF ballast throughout
• 4 lamp T5HO hibays
Results
• 25,286 estimated annual kilowatt hours energy savings
• $1,962 estimated annual energy cost savings
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Warehouse example: 8’ T12 upgrade
Before
After
What color?
Cool
6500
5000
4100
3500
3000
2700
2200
Warm
1500
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T8 to
Reduced wattage T8
First Generation T8 vs. Today’s T8
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First Generation T8:
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32 watt with 2,800 lumens
75% CRI
20,000 hours
90% lumen maintenance (87.5 lumens per watt)
Today’s T8
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32 watt with 3,100 lumens
85% CRI
42,000 hours
95% lumen maintenance (97 lumens per watt)
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28 watt with 2,725 lumens,
85% CRI,
42,000 hours
95% lumen maintenance (97 - 98 lumens per watt)
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25 watt with 2,475 lumens,
85% CRI
42,000 hours
95% lumen maintenance (99 lumens per watt)
Low watt T8’s are sensitive to
cooler temperatures and wind chill…
60° to 70°F at lamp
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Reduced Wattage T8 option #1
Existing T8:
• De-lamp to two reduced wattage T8 lamps (25 or 28 watt)
• With Low ballast factor ballast
Compliments of GE Lighting
Reduced Wattage T8 option #2
Existing T8:
• De-lamp to two reduced wattage T8 lamps (25 or 28 watt)
• With Low ballast factor ballast
• Add REFLECTOR
Existing system
Reduced wattage T8 reflector kit
Compliments of Precision Paragon
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Reduced Wattage T8 option #3
Existing T8 (2 or more lamps)
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De-lamp to two reduced wattage T8 lamps (25 or 28 watt)
With Low ballast factor ballast
Add REFLECTOR
Add HIGH PERFORMANCE LENS
Precision Paragon,
Daybrite Lighting,
Lightolier,
Lithonia
Keep and eye on fixture efficiency!
Compliments of Precision Paragon
Fixture Efficiency - How many lumens are
exiting the luminaire.
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Fixture
Fixture
Fixture
Fixture
Fixture
Fixture
efficiency
efficiency
efficiency
efficiency
efficiency
efficiency
of
of
of
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of
43.1%
69.6%
81.3%
87.1%
90.2%
100%! What the??
• Control the source
• Direct the light where you need it
Daybright
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These options may lower light levels
It is likely that:
• Existing light levels are above the IESNA
recommendations
• Existing lighting power density (watts per SQ FT) would
not meet current code
• Existing lighting has lower CRI lamps, higher lumen
depreciation and shorter lamp life
• Poor luminaire efficiency and possible directed light
(parabolic)
T8 to T8 Project
-Sample project
Existing equipment:
• Quantity (a lot) - 2x4 3 lamp T8 recessed parabolic
Retrofit upgrades/options:
• Retrofit existing parabolic with low BF (.78) ballast, (2) 28 watt
High Performance T8 lamps
• Same except add Reflector
additional incentive, better performance
• Same except add High Performance Lens Kit
better performance/distribution, possibly use less fixtures
Results
• Over 1 million in annual kilowatt hours energy savings
• $72,751 estimated annual energy cost savings
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T8 to T8 Project
-Actual project
Existing equipment
• 2x4 3 lamp T8 recessed parabolic
Retrofit option
• Retrofit existing parabolic with
• Low BF (.78) ballast,
• (2) 32watt High Performance T8 lamps
• Reflector kit to re-position lamps (less incentive)
Results
• 921,576 in annual kilowatt hours energy savings
• $64,292 estimated annual energy cost savings
Technologies
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More Lighting retrofit opportunities
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Compact fluorescent lamps (CFL) hard wire & screw in lamps
T5 & T5HO fluorescent fixtures
High intensity discharge (HID) options
Exterior lighting
Exit signs
LED case lighting
• LED recessed downlites (available as a retrofit)
• Lighting controls
Recessed downlite options
• 30 – 50 percent energy/cost savings
• Extended lamp life with similar lumen output
• Easy retrofits in LED & CFL
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Why update high bay lighting?
Lithonia
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45 – 50 percent energy/cost savings
Twice the lamp life with similar lumen output (maybe more)
Instant start and re-strike time
Greatly enhanced color rendition
Simple and effective control strategies for occupancy and
dimming
High bay lighting upgrade options
Electronic HID
• pulse start metal halide
• improved color
• can be controlled
• quicker restrike
Fluorescent High Performance T8 or T5HO
• improved color
• can be controlled
• instant restrike
Induction
• improved color
• long life
Metro Light, Fullham, Lithonia
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High bay projects
Before
After
Why update exterior lighting?
• Annual cost savings
• Maintenance
• Better light quality
• Enhanced safety
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Exterior Lighting options
• Electronic HID
• Induction
• LED
• Compact Fluorescent (wall packs)
Hubbell Lighting
Exterior project
Before
After
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Controls – add more savings!
• Occupancy sensors
(program start ballasts)
• High bay fluorescent controls
• Photo cells
• Relay panels
• Daylight harvesting systems
• Wireless
Sensor Switch, Leviton, Wattstopper
New Technologies
LED
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Light Emitting Diode (LED)
Considerations to assure product quality, performance and longevity
• How long have they been in business
• ENERGY STAR Label (USDOE)
• Independent testing results
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LM 79: If they don’t have it, you may want to stop there
LM 80: Life is determined at 30% loss of lumen output
Sample products tested on-site
Warranty & UL Label
NRTL listed (similar to UL)
Confirm costs & benefits
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compared with current lighting technologies
Lighting Facts Label
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Where does LED technology currently
make sense?
• Exit signs, traffic signals
• Refrigerated case lighting
• Gas station canopies
• Interior down light applications
• Some street lighting, Parking lot lighting
• Replacement lamps (now Energy Star)
LED/SSL – Department of Energy
• http://www1.eere.energy.gov/buildings/ssl/
• LED is dropping in cost and improving in quality
• Go to the site and read up on actual projects that have
been installed – Gateway program
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CALiPER Program Round 11
Energy Star
www.energystar.gov
Energy Star LED downlights
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Too many to list and working well
New Energy Star replacement lamps
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The list will grow in 2011, many to choose from
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Lighting Design Lab
www.lightingdesignlab.com/ledtests
Check Lists for pre-Qualified LED Products
• Both integral/replacement lamps and luminaries
Qualify a New Product
Questions
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