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Energy Efficient Streetlights and Outdoor Lighting Workshop Presented by George A. Woodbury On Behalf of Turtle Creek Valley Council of Governments & Pennsylvania.

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Presentation on theme: "Energy Efficient Streetlights and Outdoor Lighting Workshop Presented by George A. Woodbury On Behalf of Turtle Creek Valley Council of Governments & Pennsylvania."— Presentation transcript:

1 Energy Efficient Streetlights and Outdoor Lighting Workshop Presented by George A. Woodbury On Behalf of Turtle Creek Valley Council of Governments & Pennsylvania League of Cities and Municipalities

2 Goal - To Create an Understanding of: Effective Street Lighting Effective Street Lighting Understanding the Utility Company Roles Understanding the Utility Company Roles Designing System Changes Designing System Changes Management of Street Lights Management of Street Lights Available Resources Available Resources

3 Street Lighting Public Safety/Security Perceptions Public Safety/Security Perceptions Increase Commerce Increase Commerce Lighting Effects-asthetics/architectural Lighting Effects-asthetics/architectural Public Demand Public Demand

4 Available Technologies Incandescent Incandescent Mercury Vapor Mercury Vapor High Pressure Sodium High Pressure Sodium Metal Halide Metal Halide Pulse Start Ceramic Metal Halide Pulse Start Ceramic Metal Halide Induction/Fluorescent Induction/Fluorescent Light Emitting Diode-LED Light Emitting Diode-LED Induction/Plasma Metal Halide-Luxim Induction/Plasma Metal Halide-Luxim

5 Terms And Definitions Lumens Lumens Lumen Maintenance Lumen Maintenance Color Rendition Index Color Rendition Index Correlated Color Temperature Correlated Color Temperature Efficacy Efficacy Cut-off Cut-off IESNA - Illuminating Engineering Society of North America IESNA - Illuminating Engineering Society of North America

6 Lumens Measure of the total light output of a light source Measure of the total light output of a light source Measured in a sphere Measured in a sphere Unit of measure-Candela Unit of measure-Candela Measure of light level on a surface-footcandle or Lux = candela/meter squared Measure of light level on a surface-footcandle or Lux = candela/meter squared

7 Lumen Maintenance

8 Incan-descent Mercury Vapor MV High- pressure Sodium HPS Metal Halide MH Pulse Start Ceramic MHInductionLED Wattage100w 100w (131) 100w (117) 100w (121) 100w100w100w Initial Lumens * Mean Lumens hrs ,000 hrs ,000 hrs 65,000 hrs Mean time to Failure Hrs ,00024,00016,00020,000100,000100,000

9 Color Rendition Index-CRI Relative ability of a light source to match the color rendering of a standard reference source Relative ability of a light source to match the color rendering of a standard reference source *Coated lamps provide higher CRI CRI impacts on night vision CRI impacts on night vision Incan- descent Mercury Vapor HPSLPSMH Ceramic MH InductionLED * *

10 Night Vision Basics Rods and Cones Rods and Cones Rods-night vision-visual purple Rods-night vision-visual purple Cones-daylight vision-three types Cones-daylight vision-three types Scotopic-Mesopic-Photopic Vision Scotopic-Mesopic-Photopic Vision Pupil Lumens affect of light wavelength on pupil Pupil Lumens affect of light wavelength on pupil Affect of color on visual effectiveness Affect of color on visual effectiveness

11 Scotopic to Photopic Vision.034 < cd/m².31 Fc< > <.34 cd/m².31>3.1 Fc >.34cd/m²3.1Fc

12 Wavelength Sensitivity

13 Photopic Sensitivity

14 Correlated Color Temperature-CCT Measured in Measured in Degrees Kelvin Warm to Cool Warm to Cool 2800 to to 5000

15 Efficacy Measure of Lumens per watt of power Measure of Lumens per watt of power Not a measure of system efficiency Not a measure of system efficiency Useful lumens-system efficacy Useful lumens-system efficacy Glare Glare Maximum possible RGB efficacy 400 lm/W or source efficacy of 200 lm/W Maximum possible RGB efficacy 400 lm/W or source efficacy of 200 lm/W

16 CALiPER ROUND 7 SUMMARY System Efficacies-Streetlights IESNA LM ºC ambient temperature TEST ID Total Power (Watts) Output (initial lumens) Efficacy (lm/W) CCT (K) CRI Power Factor SSL Streetlight SSL Streetlight SSL Streetlight SSL Streetlight SSL Streetlight HPS Streetlight Benchmark Fluorescent Induction Streetlight * * Fluorescent Induction Streetlight

17 Light Pollution Night Sky Concerns Night Sky Concerns Light Trespass Light Trespass Full Cut-off, Cut-off, Semi Cut-off Full Cut-off, Cut-off, Semi Cut-off

18 Emerging Technologies Induction--- > Induction--- > LED > LED > Plasma > Plasma >

19 Induction Electrode-less Fluorescent Electrode-less Fluorescent Proven technology since mid 1990s Proven technology since mid 1990s Limited Wattages Limited Wattages Output at low temperatures Output at low temperatures Cost Cost Two primary manufacturers Two primary manufacturers Patent infringement issues Patent infringement issues Fixture Design Fixture Design

20 LED Temperature and forward current critical to life expectancy Temperature and forward current critical to life expectancy Focus advantage Focus advantage Glare Glare Cost Cost Efficacy, CRI and CCT Efficacy, CRI and CCT Fixture Design Fixture Design

21 Life Cycle Costs Energy Energy Capital Investment Capital Investment Maintenance Maintenance First Cost First Cost Frequency of service requirements Frequency of service requirements Cost of service call Cost of service call Lumen depreciation Lumen depreciation Obsolescence Obsolescence

22 Life Cycle Comparison Annual Costs-Assume 18 Year Cycle IncandMVHPS MH (Pulse) InductionLED First Cost $185$185$185$209$450$650 MTF* Hrs ,000+24,000+16,000100,00070,000? Reqd Wattage** Maint. & Depr. $93.28$35.29$34.39$68.11$29.98$54.78 Energy $399.75$182.04$71.96$55.35$43.05$48.89 Total $493.03$217.33$106.34$123.46$73.03$ *Mean Time to Failure **Includes Ballast Wattage Assumptions: $.15 Labor/equipment cost per trip- $88.00 Not included inflation or cost of money Assume Percentage Failure based on MTF Standard mast arm and cobra-head on utility pole 100W equivalent

23 Utility Billing & Challenges Based on mathematical algorithm Based on mathematical algorithm Lamp wattage Lamp wattage Dusk to dawn tables Dusk to dawn tables Equally divided Equally divided Annual operating hrs-typically Annual operating hrs-typically Maintenance and depreciation Maintenance and depreciation Tariff filing Tariff filing Non standard lights Non standard lights

24 Designing and Upgrading Your System Project goals Project goals RP-8 guidelines RP-8 guidelines Lamp type iso-foot candle distribution Pole height/spacing Cost considerations Cost considerations First cost First cost Life cycle costs Life cycle costs Energy costs-metered/ummetered Energy costs-metered/ummetered

25 Lighting Considerations Street Lighting Street Lighting Primarily pedestrian and auto safety Primarily pedestrian and auto safety Linear distribution Linear distribution Outdoor Lighting Outdoor Lighting Parking lots, parks, pedestrian ways, downtown areas Parking lots, parks, pedestrian ways, downtown areas Both pedestrian safety and aesthetics Both pedestrian safety and aesthetics Enhance Commerce Enhance Commerce

26 Distribution Patterns F Type III

27 Modifying Existing Systems Map system-capture attributes Map system-capture attributes IESNA guidelines IESNA guidelines Standardize lighting levels Standardize lighting levels Adjacent land use Adjacent land use Route classification Route classification Any special considerations Any special considerations Lamp type Lamp type Goals-New Construction Goals-New Construction

28 IESNA Guidelines Roadway ClassificationPed. Conflict AreaAvg. Luminance Uniformity L avg/ L min Uniformity L max/ L min High MajorMedium Low High CollectorMedium Low High LocalMedium Low

29 Goals Purpose Purpose Affect Affect Safety Safety Other Other New or existing New or existing Technologies Technologies Pole spacing/height Pole spacing/height Economics Economics

30 Tracking Systems Wireless Wireless Streetsmarts-GE Los Angeles Streetsmarts-GE Los Angeles Roam Acuity-Halophane-Glendale AZ Roam Acuity-Halophane-Glendale AZ Streetlight Intelligence Lumen IQ-Calgary Canada Streetlight Intelligence Lumen IQ-Calgary Canada Line Line Echelon Corporation-San Jose Echelon Corporation-San Jose Capabilities Capabilities Monitoring Monitoring Dimming Dimming Relay Relay

31 Ownership Options Existing systems-Utility dependent Existing systems-Utility dependent Available customer owned tariff? Available customer owned tariff? Purchase price? Purchase price? Economics? Economics? License Agreement License Agreement Compliance with applicable safety codes-make ready work Compliance with applicable safety codes-make ready work New Construction-Set municipal guidelines New Construction-Set municipal guidelines Solar Solar

32 George A. Woodbury Director of Energy Services Republic ITS Cell Fax

33 Pennsylvania Utility Companies Allegheny Power (West Penn Power) Allegheny Power (West Penn Power) Citizens Electric of Lewisburg Citizens Electric of Lewisburg Duquesne Light Company (DQE) Duquesne Light Company (DQE) Pennsylvania Power Company (PennPower) - FirstEnergy Company Pennsylvania Power Company (PennPower) - FirstEnergy Company Metropolitan Edison Company (Met-Ed) - FirstEnergy Company Metropolitan Edison Company (Met-Ed) - FirstEnergy Company Pennsylvania Electric Company (Penelec) - FirstEnergy Company Pennsylvania Electric Company (Penelec) - FirstEnergy Company First Energy formally GPU Energy First Energy formally GPU Energy PPL Electric Utilities PPL Electric Utilities PECO Energy Company- Exelon Company PECO Energy Company- Exelon Company Pike County Light & Power Company Pike County Light & Power Company UGI Utilities Inc. UGI Utilities Inc. Wellsboro Electric Company Wellsboro Electric Company


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