Summary of IEE LED Reflector Lamp Recommendations Project Adam Cooper NARUC Winter Meeting,...
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Summary of IEE LED Reflector Lamp Recommendations Project Adam Cooper NARUC Winter Meeting, Washington, DC February 5th, 2012
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Transcript of Summary of IEE LED Reflector Lamp Recommendations Project Adam Cooper NARUC Winter Meeting,...
Summary of IEE LED Reflector Lamp Recommendations Project
Adam Cooper
NARUC Winter Meeting, Washington, DCFebruary 5th, 2012
IEE lighting project
New lighting standards have an impact on both consumers and on utility lighting programs
LED is a promising technology aptly suited for directional lighting applications
IEE project goals: – Identify and recommend efficient LED reflector bulbs that also provide an
aesthetically pleasing, consumer friendly experience– ID the “consumer friendliest” of the ENERGY STAR LEDs
Why?– Want consumers to choose an efficient bulb and be happy with it
IEE worked with Ecova to test bulbs and TopTen USA to display results
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What is a reflector bulb?
A reflector bulb is cone-shaped and produces a directional beam of light.
Typically used in recessed can, track, and outdoor lighting fixtures Used for spot and flood lighting We focused on PAR20, PAR30, and PAR38 bulbs
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Examples of common uses
Source: Images courtesy of EPA and Ecova
Lighting is an art as well as a science Evaluation consisted of two phases
– Selecting the most promising lamps to purchase for testing
• Note—All lamps are ENERGY STAR• ENERGY STAR has done a lot of the hard work
– Selecting the best in class performers• Used scoring criteria broken into 4 categories—energy,
economics, measured and qualitative light performance• Key here is lab data + human evaluation
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How we scored
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Scoring Categories Weighting
(Points)
Energy 15
Efficacy exceeds ENERGY STAR requirements (%) 4
Beam Efficacy 8
Power Factor 3
Economics 20
Simple Payback 8
Cost of light 12
Photometrics (Measured light performance) 20
SPD Variance 10
CRI Variance 6
DUV 4
Light Appearance (Qualitative light performance) 45
Human Qualitative Evaluation 20
Beam Imagery 10
Dimming Behavior 15
Highest Possible Score 100
Source: Ecova
Comparison of light appearance
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Beam pattern
Desirable Undesirable
Beam profile
Source: Ecova
Findings and observations
High efficacy LED products can deliver satisfying light to consumers
The results demonstrated that the overall observed quality of LED PAR lamps tested typically equaled, or exceeded, the perceived light qualities of halogen incandescent bulbs
All LED reflector lamps will save energy, before and after the reflector lamp standards take effect, so which ones will people like the best?
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Consumer Perspective:Price points matter, incentives help
Average cost of top ten recommended LEDs is $40 compared to halogen incandescent bulb at $6.50– Note: Average cost of all tested bulbs was $60
#1 Recommended bulb– Manufacturer: TCP– Lifetime cost savings: $200– Payback period: 4 years– Lifetime kWh savings: 1,800– Cost of bulb $54
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Source: Ecova
Utility Perspective:Cost per kWh for LED bulbs post standards
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Source: EPA, Next Generation Lighting Programs. Reformatted by IEE.
Cost
per
kW
h/sa
ved
(¢/K
Wh)
2 ¢
1.40 ¢
Net lifetime energy savings per bulb (kWh)
Today (Pre-Standards)
Post-Standards
850600
*Assume $12 program cost per bulb
$12/600kWh
$12/850kWh
Example—LED PAR38
Utility lighting program
Utilities use upstream lighting programs to buy down cost.– Utility programs offering rebates for LED products not as
numerous as CFLs, but changing– 28% of ratepayer-funded residential EE programs include LED
products; 87% offer CFL products– Utility LED rebates typically capped at $5. Some utilities
pursuing rebate cap of $15 per bulb
Opportunity to strategically expand list of LED rebates– TopTen recommendations can be used to identify products for
premium rebate– Utilities can use IEE study results on own website
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Source: CEE, Annual Industry Report 2011 (forthcoming)
TopTen USA and utility program collaboration TopTen USA ranks the top ten most efficient products in
10 product categories. Now including lighting.– But lighting is not just about efficiency
Utilities have used TopTen to – Promote customized version of TopTen to consumers as an easy tool to identify
the best of the best– Encourage retailers to stock and promote TopTen products
Premium utility incentives– Add TopTen to existing incentives for special promotion, added
incentive/discount/gift with purchase– Example: NEEA provided higher mid-stream rebates to TopTen qualifying
televisions.
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Recommended next steps
Determine LED appropriate rebates– Can’t use the same rebate amount on CFLs as LEDs; Need to
increase rebate amount
For utilities that don’t have experience with LED rebates – Rebate lamps using TopTen recommendations since lamps are
tested and screened for efficiency and customer acceptance
For utilities that already rebate ENERGY STAR LEDs– Offer premium incentives for TopTen bulbs
Several utilities interested in using recommendations list and expanding lighting categories this year
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PAR38 Recommendations, list view
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Source: TopTen USA
PAR38 Recommendations, energy details
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Source: TopTen USA
PAR38 Recommendations, detailed view
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Source: TopTen USA
For more information, contact:
Adam CooperResearch Manager
Institute for Electric EfficiencyThe Edison Foundation701 Pennsylvania Ave., N.W.Washington, D.C. 20004-2696
202.508.5550
www.edisonfoundation.net/IEE
