Program Name or Ancillary Text eere.energy.gov
Performance Insights on Solid State LightingDOE’s CALiPER, NGL, and LED Lighting Facts Programs
Ruth Taylor
Pacific Northwest National LaboratoryACEEE Market Transformation Conference
March 26, 2013
www.ssl.energy.gov2 | Solid-State Lighting Program
Outline
• The programs
• The trends
• Digging deeper
• Next steps
www.ssl.energy.gov3 | Solid-State Lighting Program
The DOE Programs
• CALiPER – think consumer reports
• LED Lighting Facts – think food labels
• NGL – think J.D. Powers
www.ssl.energy.gov4 | Solid-State Lighting Program
Understanding the Trends
• CALiPER – significantly dependent on products tested in a
given year
• LED Lighting Facts – best trend set (over 7000 products
listed)
• NGL – only products meeting strict competition
requirements
www.ssl.energy.gov5 | Solid-State Lighting Program
CALiPER – Efficacy, Lamps
26
34
4447
54 55
0
10
20
30
40
50
60
70
80
90
100
2006 2007 2008 2009 2010 2011 2012
Lu
min
ou
s E
ffic
acy (
lm/W
)
(0) (16) (34) (39) (50) (43) (58)Maximum
75th Percentile
MeanMedian
Minimum
25th Percentile
Efficacy
www.ssl.energy.gov6 | Solid-State Lighting Program
CALiPER – CRI, Lamps
Maximum
75th Percentile
MeanMedian
Minimum
25th Percentile
6673 76 79
82 83
0
10
20
30
40
50
60
70
80
90
100
2006 2007 2008 2009 2010 2011 2012
CR
I
Color Rendering
www.ssl.energy.gov7 | Solid-State Lighting Program
CALiPER – Efficacy, All Products
18
2932
4047
5552
0
10
20
30
40
50
60
70
80
90
100
2006 2007 2008 2009 2010 2011 2012
Lu
min
ou
s E
ffic
acy (
lm/W
)
Purchase Year
Number of Products
9 43 62 73 77 84 87
www.ssl.energy.gov8 | Solid-State Lighting Program
CALiPER – CRI, All Products
6871
74 77 79 80 82
0
10
20
30
40
50
60
70
80
90
100
2006 2007 2008 2009 2010 2011 2012
Co
lor
Ren
deri
ng
In
dex (
CR
I)
Purchase Year
Number of Products
9 43 62 73 77 84 87
www.ssl.energy.gov9 | Solid-State Lighting Program
CALiPER 2012 Conclusions
• Overall improvements in light output, efficacy, light
distribution, power factor, color quality, etc.
• Manufacturer claims and equivalency claims are
improving… but can still be a problem
• Suitability often depends on application
• Careful comparisons based on accurate performance
data is an absolute necessity
• Be cognizant of “secondary” quality issues: glare, flicker,
color tolerances, physical formats, reliability…
www.ssl.energy.gov10 | Solid-State Lighting Program
LED Lighting Facts
www.ssl.energy.gov11 | Solid-State Lighting Program
LED Lighting Facts - Efficacy
www.ssl.energy.gov12 | Solid-State Lighting Program
LED Lighting Facts - CRI
79 78 80 80 78 78 78 78 79 78 80 80 79 79 79
0
10
20
30
40
50
60
70
80
90
100
2009 Q3 2009 Q4 2010 Q1 2010 Q2 2010 Q3 2010 Q4 2011 Q1 2011 Q2 2011 Q3 2011 Q4 2012 Q1 2012 Q2 2012 Q3 2012 Q4 2013 Q1
CR
I
Quarter of Initial Listing
www.ssl.energy.gov13 | Solid-State Lighting Program
LED Lighting Facts – Mean Efficacy
0
10
20
30
40
50
60
70
80
2009Q3
2009Q4
2010Q1
2010Q2
2010Q3
2010Q4
2011Q1
2011Q2
2011Q3
2011Q4
2012Q1
2012Q2
2012Q3
2012Q4
Me
an L
um
ino
us
Effi
cacy
(lm
/W)
Quarter of Initial Listing
Lamp
Luminaire
www.ssl.energy.gov14 | Solid-State Lighting Program
LED Lighting Facts – Mean Efficacy
0
10
20
30
40
50
60
70
80
2009 Q32009 Q42010 Q12010 Q22010 Q32010 Q42011 Q12011 Q22011 Q32011 Q42012 Q12012 Q22012 Q32012 Q4
Me
an L
um
ino
us
Effi
cacy
(lm
/W)
Quarter of Initial Listing
IndoorOutdoorOther
www.ssl.energy.gov15 | Solid-State Lighting Program
0
20
40
60
80
100
120
140
2009 Q32009 Q42010 Q12010 Q22010 Q32010 Q42011 Q12011 Q22011 Q32011 Q42012 Q12012 Q22012 Q32012 Q4
Max
Lu
min
ou
s Ef
fica
cy (
lm/W
)
Quarter of Initial Listing
Lamp
Luminaire
LED Lighting Facts – Max Efficacy
www.ssl.energy.gov16 | Solid-State Lighting Program
0
20
40
60
80
100
120
140
2009 Q32009 Q42010 Q12010 Q22010 Q32010 Q42011 Q12011 Q22011 Q32011 Q42012 Q12012 Q22012 Q32012 Q4
Max
Lu
min
ou
s Ef
fica
cy (
lm/W
)
Quarter of Initial Listing
Indoor
Outdoor
Other
LED Lighting Facts – Max Efficacy
www.ssl.energy.gov17 | Solid-State Lighting Program
Next Generation Luminaires Design Competition
www.ngldc.org
www.ssl.energy.gov18 | Solid-State Lighting Program
NGL Efficacy Advancements
All recognized (avg. efficacy)
• 2008 - 37 lm/W
• 2009 - 52 lm/W
• 2010 - 45 lm/W
• 2012 - 65 lm/W
• 2013 – 75 lm/W (indoor)
www.ssl.energy.gov19 | Solid-State Lighting Program
Shift in Focus
Product Selection & Purchasing
Independent LM-79-08 Testing
Data Analysis
Report Publication
Shift to Lighting
Facts QA
New CALiPER
Focus
www.ssl.energy.gov20 | Solid-State Lighting Program
CALiPER Digging Deeper
• Snapshot Reports using data
from LED Lighting Facts
• Application Reports focusing
on specific product types and
design scenarios, going beyond
LM-79 testing
• Exploratory Studies that
incorporate product installations
and evaluations
• Standards Support for
emerging areas such as flicker,
dimming, power quality, long-
term performance, etc.
www.ssl.energy.gov21 | Solid-State Lighting Program
Recessed Troffer Exploratory Study
• Install 24 pairs of similar performing
recessed luminaires (2×2 and 2×4)
and 0−10 V dimming controls in mock
office space
• Show examples of fluorescent
benchmarks, LED tubes, LED retrofit
kits, and dedicated LED troffers
• Invite 18 designers/engineers to
observe, brainstorm, and comment
• Get feedback from non-lighting experts
as well
www.ssl.energy.gov22 | Solid-State Lighting Program
www.ssl.energy.gov23 | Solid-State Lighting Program
Efficacy
Energy efficiency – Luminaire efficacy
• All LED products did as well or better than the Fluorescent
Min LPW Max LPW Average LPW
FL benchmark troffers
(28W lamps)
54 72 65.3
Dedicated LED
troffers
75 104 90.6
LED tube retrofits 55 76 68.8
LED retrofit kits 60 76 66.5
www.ssl.energy.gov24 | Solid-State Lighting Program
Watts
Energy use – Luminaire watts
• If you’re not careful, LED retrofit tubes may not alter watts
Min Watts Max Watts Average Watts
FL benchmark
troffers (28W lamps)
49 (2x2) 83 (2x4) 63.5
Dedicated LED
troffers (2x2 and 2x4)
34 (2x2) 58 (2x2) 43.6
LED tube retrofits 48 (2x4) 79 (2x4) 16 to 26W per
tube
LED retrofit kits 35 (2x2) 51 (2x2) 41.2
www.ssl.energy.gov25 | Solid-State Lighting Program
What did we learn?
• Wide range of quality in LED troffers
• LED tubes produce some funky luminaire
appearance
• Be careful in choosing the beam angle on
these tubes, LED tubes can change the
distribution of light from the luminaire
• LED tubes may have unexpected installation
problems, especially concerning sockets
• Luminaire efficacy is very high. Holds great
promised. Look for LPW of 90+
• Dedicated LED troffers are a good option for
new installations
See it, mock it up before you buy a bunch of
them!
www.ssl.energy.gov26 | Solid-State Lighting Program
CALiPER – 2013 Preview
• Additional Office Study testing
(T8 replacements first)
• PAR38 long term & stress
testing
• Start Retail Display Exploratory
Study
• Continued standards support
and testing (Roundtable next
month)
www.ssl.energy.gov27 | Solid-State Lighting Program
What’s Next?
• CALiPER – focus on deeper dives
• LED Lighting Facts – verification testing for QA
• NGL – discussions on separate competition for
cutting edge, emerging products
Any thoughts?
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