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8/25/15 C-W Energy Solutions 0

F-LED / ALAN

Working to be Good Neighbors to the Eco System

C & W Energy Solutions Paradise Valley, AZ 85253

Phone: 480-998-1694 email: [email protected]

www.cwenergyusa.com


ALAN – FLED: Good Neighbors

•  Overview of Presentation •  Initial Focus

•  LED Roadway Light Conversion – Cost Driven •  Conversion Specifications – Observatory Acceptable

•  Technology •  Historical Lighting •  Standard LED Technology – Blue Light •  Initial Filtered LED (FLED) – Blue Light Reduction •  Filtered LED – Spectral Control •  Impact of Semiconductor Light Source

•  ALAN-FLED – Eco System Impact •  Observatory •  Wildlife •  Humans?

•  Summary



•  Initial Focus •  Street Light Impact

•  County of Hawaii (COH) – Power costs in 2008 were $0.25 / kW-Hr and increasing each year.

•  Maintenance Costs – The cost to maintain the LPS lights was increasing as hardware aged and LPS suppliers dwindled.

•  Specifications •  COH

•  Efficiency •  CRI •  Reliable

•  Observatory •  Blue Light Content = Σ400nm:500nm/Σ400nm:700nm



•  Historical Lighting •  Street Light Impact

•  County of Hawaii (COH) – Power costs in 2008 were $0.25 / kW-Hr and increasing each year.

•  Maintenance Costs – The cost to maintain the LPS lights was increasing as hardware aged and LPS suppliers dwindled.

•  Specifications •  COH

•  Efficiency •  CRI •  Reliable •  Outside the ITE Traffic Box

•  Observatory •  Blue Light Content = Σ400nm:500nm/Σ400nm:700nm



•  Historical Lighting •  Types: Incandescent - Metal Halide – High Pressure

Sodium – Low Pressure Sodium •  Characterized: Output (Lumens)– Color Temperature on

Black Body Curve (CCT) – Electrical Power (W) – Color Rendering Index – CRI

•  Life Time – Months to Years •  Bulb Costs for LPS - $15 (55 W) - $75 (180 W)



!  CIE Chart !  Various Types Lights



LED Technolgy •  Semiconductor Source •  Thin Film Technology •  Custom Control at Atomic Levels •  Units of Measurements – Microns – Angstroms •  Astronomy – Moves decimals to the Right •  Thin Film LED – Moves decimals to the Left



!  Conventional WW – 3000K



County of Hawaii Roadway Light – CW-SF7 – Ron’s Light



Conventional WW with SF8 Filter- Mrs. Winslow



Conventional WW with SF9 Filter - Javier Castro



Conventional CW with SF9 Filter



Conventional CW with SF10 Filter



Conventional WW with SF10 Filter - XX



PC Amber



AlGaInP/GaP – Amber – Narrow Beam Amber

NBA has efficacy of 20 – 30 l/W



Status of Technology; •  Initial samples of this technology has been in use for 5 ½ years •  1000 lights have been in service for 3 years •  10,000 new lights are being installed on the roadways of the

County of Hawaii over the next 18 months •  LPS lighting now on private property is being converted to the

FLED •  Efficiency of the lighting has improved 80% over the past 3 years

from 55 l/w to 100 l/w •  Three new families of filters have been developed over the past

2 years and one family qualified for the Canary Islands •  More data will be supplied by a Ron Thiel later in the day



Light Pollution – Sky Glow – Dark Sky •  Spectral Distribution / Light Pollution? Blue Light increase Sky Glow? •  Light Pollution: Data being collected to quantify Light Pollution both in

terms of spectra and lumen distribution and relate change to spectral data. The below photo is Waikola, HI located below Mauna Kea. The night light is 70% from roadway lights. The LPS will be replaced with FLED and the spectrum measured to compare.

•  Light Pollution: Hardware issue? Data intended to show influence of hardware and spectrum separately.



What About the Remainder of the ECO System? !  The Observatory community Is only a small portion of the overall Eco

System. !  Some things with support data

•  Humans have a circadian rhythm for sleep tied to the blue light from the spectra.

•  Data are available to suggest the influence of blue light on turtles

•  Professor Longcore at Univ. of Southern California is studying the influence of the spectra on insects that are involved in the pollination of food crops.

•  Attraction of birds to the offshore oil rigs can be reduced with the proper spectra.

!  Some endangered species are thought to be influenced by the spectra but very limited data. •  Newall’s Shear Water •  Bats •  ????



Summary ALAN – FLED; Good Neighbors to Eco Systems •  This semiconductor lighting technology offers a methodology to

study the impact on the eco system with a controlled spectrum. •  The FLED has been employed in the field for 3 years proving the

cost effectiveness of the technology, stability of the filter materials and versatility of the light.

•  Opportunities / challenges for the technology are great in relation to the eco systems around our every day lives.

•  The users of these new lights will need to change the decades old approach to defining lighting standards to offer the proper products tailored to the unique needs of the eco system.

•  As the efficiency of the products increase, new opportunities will emerge. Already red and green lights with this technology are being evaluated.

f-led / alan working to be good neighbors to the eco system · working to be good neighbors to the...

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