LED Fact or Fiction. Yoelit H. Hiebert, PE, CEM

Transcription

1 LED Fact or Fiction Yoelit H. Hiebert, PE, CEM

2 LED Fact or Fiction? LED products last forever LED lights don t radiate heat LED lights are not bright enough LED light quality is poor LED products are all basically the same in terms of quality and reliability LED products provide the best lighting solution for all applications

3 LED Fact or Fiction?» Why Use LED Lighting?» LED Basics» LED Characteristics» Short-term Trends» The Future of LED Lighting» Case Studies

4 Why Use LED Lighting?» Reduced energy costs» Reduced maintenance costs» Reduced cooling costs» Ideal for power cycling and cold environments» Durable» Easy to control and network

5 Market Adoption» 215 million LED lighting products installed by % indoor 8% outdoor 4% other» Indoor LED - 3% of total 2014 lighting market Mostly indoor lamps» Outdoor LED - 10% of total 2014 lighting market Source: Adoption of Light-Emitting Diodes in Common Lighting Applications, July 2015

6 LED Basics» LED - Light-Emitting Diode» LEDs emit light via the movement of electrons through a semiconductor material» LEDs have been used as indicator lighting for many years but have only been used for general lighting applications in the last ten years.» LEDs are a subset of solid state technology Solid State Lighting (SSL) used interchangeably

7 Comparing LEDs to Other Lighting

8 Development Timeline

9 Components of an LED Lighting System Light Engine Housing and Thermal Managment LED Lighting System Components Driver Controls and Networking (optional)

10 LED Characteristics» Lumens a measure of the total "amount" of visible light emitted by a source» Efficacy output lumens/input watts = overall efficiency» Lumen Maintenance (L70) the time in hours at which the lumen output is 70% of initial (projected using standard test/projection methods)

11 LED Characteristics» CRI Color Rendering Index an indication of how well the light source faithfully reproduces various colors Score of 1-100» CCT (Correlated Color Temperature) - an indication of warmness or coolness of white light, expressed in degrees Kelvin 2700K - warm white, higher red component 5000K - cool white, higher blue component

12 LED Lighting Listing Organizations Energy Star Part of the DOE» Promotes residential and commercial energy efficiency» Qualified Products Lists for lamps and lamp-like fixtures (CFL and LED) DesignLights Consortium (DLC) Non-profit organization - support comes from utility members» Qualified Products List - for categories of LED products not covered by Energy Star» SSL technology only

13 Short-term Trends» General Illumination Lighting Markets Commercial/Industrial Outdoor Retail/Hospitality» Specialty Lighting Markets e.g., displays, medical, horticulture, agriculture, automotive» Lighting for commercial/outdoor applications lumens, direction, efficacy, reliability» Lighting for life color, consistency, customization

14 Industry Direction» LED adoption it s not LED Lighting it s just Lighting» Electronics Lighting and color controls Building automation interfaces» Form factors- designers taking advantage of SSL flexibility for more creative luminaires» Software lighting has become part of the software industry» New players - Flextronics, ABB, LG Electronics not in lighting business until now

15 LED Architectural/OLED Lighting

16 Custom Spectrum Lighting

17 ASHRAE /IECC 2015» Table Lighting Power Density Allowances lighting control (beyond local switch) required in essentially all spaces» Energy monitoring and reporting, all utilities. Building-level energy use data must be collected and reported for electric and nonelectric utilities. The energy data is to be recorded at least every 60 minutes, reported and retained for three years.» Electric Power Monitoring and Reporting (sub-metering) Energy use of the following systems needs to be monitored separately: - Total electrical energy - HVAC - Interior lighting - Exterior lighting - Receptacle Circuits

18 The Future of LED Lighting» SSL as the anchor for integrated building controls to: 1. Maximize comfort and convenience of occupants 2. Minimize energy usage» Lighting performance is still a consideration but now sensors and controls are included in nearly all lighting products Lighting as a dynamic function which responds based on occupancy, daylight levels, individual preferences Color, distribution, intensity automatically and individually controlled Technologically and economically possible to integrate, sensors, intelligence, network interfaces to enable an overall building management system.

19 Challenges: The Future of LED Lighting legacy automation protocols for building systems - Numerous proprietary implementations - Reliability critical infrastructure cannot fail - Security who s job is it anyway? - Ownership building management groups will need to include IT competency

20 In the News» Apple to make future iphones compatible with a cutting-edge Li-fi technology that has the capability to transmit data at 100 times the speed of WiFi» GE will stop making CFL bulbs, will focus on LEDs instead» GE Align SSL retrofit lamp technology for assistance in regulating natural human sleep and wake cycles» Lighting Science Group Sleepy Baby product is designed for infant sleep training» GE ShotSpotter - outdoor lighting that can detect the sound of a gunshot and alert police

21 2014 U.S. Energy Usage Residential Lighting (150 billion kwh) Commercial/Industrial Lighting (262 billion kwh) All Other Electrical (3745 billion kwh) Source: US Energy Information Administration updated 4/16/15

22 Case Studies Retrofit Grocery Exterior» Replaced metal halide with LED wallpacks and canopy lighting» 17,000 kwh saved per year, 8% of total usage» $1,000 saved per year» 3 year simple ROI

23 Case Studies Retrofit Warehouse Interior» Replaced metal halide and T8 office-type lighting with LED luminaires and sensors» 511,000 kwh saved per year, 2.5% total usage» $30,000 saved per year» 4 year simple ROI

24 New Construction Fitness Center Case Studies» Indoor and Outdoor LED lighting» Approx. 100,000 kwh saved per year (compared to code requirement)» Approx. $6,000 saved per year» Approx. 11 year simple ROI

25 LED Fact or Fiction? LED products last forever LED lights don t radiate heat LED lights are not bright enough LED light quality is poor LED products are all basically the same in terms of quality and reliability LED products provide the best lighting solution for all applications

26 Thank you! Yoelit Hiebert, PE, CEM

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