DOCSLIB.ORG

LED Street Lights

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
LED Street Lights LED Street Lights City Council Airport, Development Services, Public Works and Utilities and Transportation Policy Subcommittee | February 18, 2020 Agenda • Terminology • Background • History of LED street light installations in Chandler • Benefits • Reactions from residents • What other city’s are doing • Chandler Today • LED street light program options • Return on investment • Recommendations • Light Garden tour • Questions Terminology • LED (Light Emitting Diode) An LED is an electronic device that emits light when an electrical current is passed through it. LED’s are electrically efficient and are now being used for street lighting applications to save power costs. • HPS (High Pressure Sodium) A sodium-vapor lamp is a gas-discharge lamp that uses sodium in an excited state to produce. High-pressure sodium lamps (sometimes called HPS lights) have been widely used in industrial lighting, especially in street lighting applications. • Correlated Color Temperature (CCT) indicates how “warm” or “cool” the light a particular lighting technology generates is. CCT is measured in Kelvin (K). A higher value (>5,000K) indicates a “cooler”/bluer light color; a lower value (<4,500K) indicates a “warmer”/more orange light color. • Illuminance indicates the light intensity on a surface per unit area. It is measured in footcandles (fc). 1 fc = 1 lumen/square foot. • Kilowatt-hours (kWh) is a measurement of energy. It is calculated by multiplying the power draw (wattage) of a device by the amount of time for which it is drawing power (e.g., a 100W light bulb that is on for 10 hours uses 100 x 10 = 1,000 watt-hours = 1 kWh). • Uniformity: The evenness of light distribution. Background • 29,500 street lights in the City • Annual Traffic Electricity Budget: $3.26 Million (90% street lights and 10% traffic signals) • 1980s - High Pressure Sodium (HPS) lighting started to be used • 2010 - Began using LED street lights • 2014 - Adopted LED as a City standard as part of yearly Development Manual update History of LED Installation 2010 Arizona Avenue (70 lights) 2010 ADOT converting valley freeways as part of new construction on freeway system 2012 APS service area within City (2,100 lights) 2014 All Signalized Intersections converted to LED 2014- CIP, development, and damaged pole 2019 repair (2,930 lights) Benefits • Crisp and uniform white light • Better visibility • Similar to moonlight • Enhances security and public safety • Lower energy consumption • 50%+ energy savings depending on fixture type • Less maintenance • HPS requires bulb replacement every 5 years • LEDs will last 20+ years Reactions From Residents • Light Spillover – addressed with resident on case by case basis • Correlated Color Temp – Optimized for color recognition and safety • Dark Sky – Lower wattages and better directed What other Cities are doing • Glendale: First in State to relight the entire City ‐ 18,000 lights • Gilbert : Similar programs to Chandler, currently evaluating ROI for large scale exchange program. • Tempe: Partially completed 4000 of 11,700 Streetlights citywide • Mesa: Studying Dark Sky zones so nothing yet about full scale conversion of 38,000 street lights • Scottsdale: Replaced 25% of fixtures with more as funding allows • Phoenix: Completed contract with Ameresco for 92,000 lights in both SRP and APS service areas Chandler Today • Current annual energy spend within the SRP service area for non-metered street lights = $1.23M / Year • 5,100 out of 29,500 street lights citywide are LED (18%) (2100 APS + 3000 SRP) • SRP changed rate structure for non-metered lighting in May of 2019 (Changed from 5 bins to 16 bins based on wattage) LED Street Light Program Options • Current CIP 26 Years (Approximately $450K/Year) • General Fund Capital: 1 Year ($11.1M) 3 Year ($3.8M/YR), 5 Year ($2.4M/YR) • Smaller $1M/Year General fund Capital investment while reinvesting annual electrical savings toward following years installations. 8 Years to complete. • Partner with outside vendor for supply, installation and financing similar to City of Phoenix program LED Options By The Numbers Replacement Capital Street **20 Year Average Energy Time Budget / Year Lights/Year Energy Savings Savings/Year LED Streetlight Replacement Program 1 Year 3 Year 5 Year 8 Year With 1 Year $11.1M 25,000 $14.4M $720K Energy Savings Options Reinvestment 3 YearAverage # of Lights Installed$3.7M Per Year 8,333 $13.5M25,164 8,388$673K 5,033 3,146 5 Year $2.4M 5,000 $12.8M11,066,472 3,688,824 $642K2,213,294 Average Yearly Capital Cost 1,000,000 8 YearTotal Capital Cost$1.0M 3,125 $ $12.0M11,066,472 $ 11,066,472 $ $601K11,066,472 $ 8,000,000 (ConsidersTotal Energy Savings over during $3M Replacement in energy Period = savings reinvested$ 369,472over $the 1,341,7538 year $ period)2,151,045 $ 2,738,575 Total 20 Year Power Savings = $ 14,409,422 $ 13,469,597 $ 12,852,084 $ 12,023,080 CurrentAverage EnergyCIP Savings*$350K per Year‐ =$500K 950$ $6.5M720,471 $ 673,480 $ $326K642,604 $ 601,154 (26Average Years) Repair/Replace Labor and HPS Fixture Cost per year = $ 1,173,451 $ 1,173,451 $ 1,173,451 $ 1,173,451 Total Average Annual Savings = $ 1,893,922 $ 1,846,930 $ 1,816,055 $ 1,774,605 ROI for Capital Spent Based on Energy Savings (Years)= 15.4 14.5 15.4 12.6 *3% ROIEscalation for Capital Spent Rate/Yr Based on Total Included Savings (Years)= 5.8 6.5 7.5 7.5 **Electric rate increases not included Return on Investment Replacement Capital Street ROI w/ Energy ROI w/Energy Time Budget / Year Lights/Year Savings Only +OPS Savings LED Streetlight Replacement Program 1 Year 3 Year 5 Year 8 Year With 1 Year $11.1M 25,000 15.4 Years 5.8 YearsEnergy Savings 3 YearOptions $3.7M 8,333 16.4 Years 6.0 Years Reinvestment Average # of Lights Installed Per Year 25,164 8,388 5,033 3,146 5 Year $2.4M 5,000 17.2Years 6.1Years 11,066,472 3,688,824 2,213,294 Average Yearly Capital Cost 1,000,000 8 YearTotal Capital Cost$1.0M 3,125 $ 12.611,066,472 Years $ 11,066,472 $ 7.511,066,472 Years $ 8,000,000 (ConsidersTotal Energy Savings over during $3M Replacement in Electrical Period = Savings reinvested$ 369,472 over $ the1,341,753 8 year $ 2,151,045period) $ 2,738,575 Total 20 Year Power Savings = $ 14,409,422 $ 13,469,597 $ 12,852,084 $ 12,023,080 CurrentAverage Energy CIP Savings*$350K per Year =‐ $500K 950$ 12720,471‐18 Years $ 673,480 $ 12642,604‐15 Years $ 601,154 (26Average Years) Repair/Replace Labor and HPS Fixture Cost per year = $ Depending1,173,451 $ 1,173,451 on Fixture $ 1,173,451 type $ 1,173,451 Total Average Annual Savings = $ 1,893,922 $ 1,846,930 $ 1,816,055 $ 1,774,605 3% EscalationROI for Capital Spent Rate/Yr Based on Energy Included Savings (Years)= 15.4 14.5 15.4 12.6 **ElectricROI for Capital rate Spent increases Based on Total notSavings included (Years)= 5.8 6.5 7.5 7.5 Recommendations • Propose reducing project schedule from 26 years by taking advantage of one of the four financing options to take advantage of rapid ROI • Initially focus on Arterials then Collector and local streets • Arterials ‐ 120 Watt 4000K fixtures Collectors ‐ 72 Watt 4000K fixtures Locals ‐ 35 Watt 4000K fixtures Visit to the Light Garden Questions ? Typical Color Temperatures Candle Light 2100 HPS Street Light 2200 Incandescent Bulb 2400 City of Chandler Standard LED 4000 Moonlight 4100 Daylight 5250 Xenon Headlights 6200 Apple iPhone 6900 Flat Screen TV 7500 0 1000 2000 3000 4000 5000 6000 7000 8000.
Load more

Recommended publications
  • Street Light/Traffic Signal Crew Supervisor
    CITY OF SALINAS STREET LIGHT/TRAFFIC SIGNAL CREW SUPERVISOR BARGAINING UNIT/CLASS CODE: SEIU SUPV. / P06 DEFINITION To assume substantial responsibilities for the daily supervision of a crew in the Street Division of the Maintenance Services Department; and to perform a variety of skilled electrical work in the installation, maintenance, and repair of signal systems and street lights; performs other related work as required. DISTINGUISHING CHARACTERISTICS This is the advanced journey and hands on, supervisory class. Positions in this class exercise daily supervision of assigned personnel under the direction of Street Maintenance Manager. It is distinguished from the Public Service Maintenance Worker IV by the greater extent of the supervisory responsibility and lead supervision over a crew. This position is expected to perform many of the advanced technical skill activities in the repair and maintenance of streetlights and traffic signals. It is distinguished from the Street Maintenance Manager in that it does not have full responsibilities for organizing and assigning work, and changing work procedures, program development and recommending employee selections, promotions or discipline. SUPERVISION RECEIVED AND EXERCISED Receives direction from the Street Maintenance Manager. Exercises functional supervision over assigned staff. ESSENTIAL JOB FUNCTIONS OF THE POSITION Duties may include, but are not limited to the following: Coordinate with the Street Maintenance Manager in organizing and planning work assignments. Supervise, train and evaluate subordinate employees. Assign specific tasks to individuals and crew to accomplish assigned work. Lead a street light/traffic signal maintenance and installation crew. Assist the Street Maintenance Manager with administration of division activities; keep records, prepare reports, estimate job costs, order materials, evaluate work procedures.
    [Show full text]
  • THE MYSTERY of FLASH REVEALED by Charlie Borland All Text and Images Copyright © Charlie Borland
    THE MYSTERY OF FLASH REVEALED by Charlie Borland All text and images Copyright © Charlie Borland LESSON 1 UNDERSTANDING FLASH In a perfect world for photography, every photograph we take would have perfect light, the perfect subject, perfect exposure, resulting in the perfect photograph. However, as you know there is nothing perfect in our world including the conditions, in which we photograph. Fortunately, there are tools available that allow us to capture pictures that may appear close to perfect and flash is one of them. Flash has so many useful applications in photography. It can be the dominant light source or a secondary light source. Here it is secondary as the flash is set for flash fill to lower the contrast created by the sun. We will cover flash fill coming up. In this course, we will closely examine how flash works in conjunction with your camera and explore techniques that will improve your photographs, and even open up creative options you may not have been aware. Once you understand the principals behind flash, you will find that using one is really quite simple. You can then take these fundamentals, and apply them to your particular flash and camera system. There are many makes and models available today and they change literally on a daily basis. We cannot possibly cover how each and every flash unit works, but with the basic understanding of flash theory and technique, you should easily be able to revisit your owner’s manual and gain a thorough understanding of how your flash and camera system work together.
    [Show full text]
  • 2455-2240, Volume 19 Issue 1,April 2020
    International Journal of Research, Science, Technology & Management ISSN Online: 2455-2240, Volume 19 Issue 1,April 2020 A STUDY OF SOLAR STREET LIGHT AND OPTIMIZATION FOR SPACING IN POLES AND COST Abhigyan Singh, Dayanand Saraswati ABSTRACT In this paper we are studding the convectional led light of renewable energy of electrification. Now the India has been using the remote control of energy in solar power. Solar electrification is the most important part of the developing in India as it is urban area or rural area. In this paper, we are focusing the optimization of solar electrification to charge of power, cost efficient and efficiency effect. Also discuss the how LED light is more efficiently as compare to the CFL light in solar street light. We will discuss the study of LED light and CFL light about access the energy in solar project. Solar street light project has developed by new technology as automated control system, tubular battery, panel’s type. India is using the solar street light in rural areas because of the less transportation of electricity in rural areas. We are studding the rural street light in Rajasthan to generate the solar electric light in road. Solar Street light is friendly behavior of human being to save the energy and reduces the criminal cases on road in night and also reduced the accident in night. Street light optimization is discussing the sufficient of street light in an area of road in INDIA. We are discussing the population of rural area and use the street light to evaluate the effect on environment by the different type of light.
    [Show full text]
  • Street Lighting Design Guidelines & Details
    City and County of Denver Street Lighting Design Guidelines & Details Department of Public Works Engineering Division September 2019 City and County of Denver Street Lighting Design Guidelines Developed by: The City and County of Denver Public Works Department Clanton & Associates, Inc. Jacobs Engineering Group Copyright © 2019 City and County of Denver. All Rights Reserved. Reproduction of this document, in any form, without prior written permission from the City and County of Denver is strictly prohibited. Distribution of this document is strictly for use by and for business within the City and County of Denver, CO. 2 | Page City and County of Denver Street Lighting Design Guidelines Table of Content Background and Purpose .................................................................................................................................. 7 1.1 Typical Street Light Installations............................................................................................................. 7 Streetlight General Guidance ........................................................................................................................... 9 Fundamentals of Lighting Design ................................................................................................................. 11 3.1 Factors in Lighting Design ..................................................................................................................... 11 3.2 Non-Visual Effects of Light ...................................................................................................................
    [Show full text]
  • Solid-State Lighting Based on Light Emitting Diode Technology Dandan Zhu and Colin J
    87 5 Solid-State Lighting Based on Light Emitting Diode Technology Dandan Zhu and Colin J. Humphreys 5.1 Historical Development of LEDs – 88 5.2 The Importance of Nitride Materials – 89 5.3 LED Basics – 90 5.4 Fabrication of an LED Luminaire – 92 5.4.1 Efficiency and Efficacy – 93 5.5 Research Challenges – 94 5.5.1 Crystal Growth – 95 5.5.2 Internal Electric Field – 97 5.5.3 p-Type Doping – 99 5.5.4 Green Gap and Efficiency Droop – 100 5.5.5 Chip Design – 102 5.5.6 Generation of White Light with LEDs – 103 5.5.7 LED Packaging – 105 5.6 LEDs for Lighting – 106 5.6.1 Quality of LED Lighting – 106 5.6.2 Efficacy – 107 5.6.3 Lifetime – 108 5.6.4 Cost – 109 5.7 LED Lighting Applications: The Present and Future – 110 5.7.1 General Illumination and Energy Saving – 112 5.7.2 Circadian Rhythm Lighting – 113 5.8 Chapter Summary – 114 References – 114 D. Zhu C.J. Humphreys (*) Department of Materials Science and Metallurgy, University of Cambridge, 27 Charles Babbage Road, Cambridge CB30FS, UK e-mail: colin.humphreys@msm.cam.ac.uk © The Author(s) 2016 M.D. Al-Amri et al. (eds.), Optics in Our Time, DOI 10.1007/978-3-319-31903-2_5 88 D. Zhu and C.J. Humphreys 5.1 Historical Development of LEDs More than 100 years ago in 1907, an Englishman named Henry Joseph Round discovered that inorganic materials could light up when an electric current flowed through.
    [Show full text]
  • Lighting 101
    Strobist ::: Apparatus minor • Cogitatio magis • Lux melior ::: Lighting 101 http://strobist.com ver. 12-2013 Introduction Welcome to Lighting 101. You may not realize it yet, but you have just stepped through a door that may change your photography forever. Over the past few years, over four million people from nearly every country in the world have begun their lighting education right here. And if they can do it, you can do it. Photography is literally writing with light. As you read through Lighting 101 you'll learn how to control every aspect of your electronic flash. If you can imagine it, you'll be able to create it. You'll learn how to take the removable flash that you probably already have on the top of your camera and use it off-camera to make beautiful, more three-dimensional photos. Once you learn the basics of controlling light, you'll quickly see that most lighting is intuitive, easy and fun. The Good News: The Gear Doesn't Cost Much (Photo by Strobist reader Sam Simon) Basic lighting gear is also refreshingly inexpensive. If you have a camera, lens and flash you have already done the spendy part. The gear needed to take your light off-camera is very inexpensive compared to your camera, your flash or even a single lens. By getting your flash off-camera, your images become more three-dimensional, more textural and more professional looking. All of the photos on this page were made by Strobist readers (who very recently may well have been exactly where you are right now) just lighting with small flashes.
    [Show full text]
  • LTAP Fact Sheet
    Kansas LTAP Fact Sheet A Service of The University of Kansas Transportation Center for Road & Bridge Agencies Save Electricity with LED Streetlights By Nora Fairchild f you are trying to make sustainable including solar-powered. Using solar changes in your community, one power is especially feasible for these Isimple solution is to install or fixtures because the energy draw from replace existing street lights with LED LED bulbs is much lower than for light fixtures. This article will explain incandescent bulbs. how LEDs work, the costs and benefits Can be retrofitted. A new LED unit of making the switch and how LED can replace an incandescent unit on an lighting contributes to sustainability. existing pole. Swapping the units takes only about 30 minutes per fixture, per How LED lights work differently the Missouri S&T. than incandescent bulbs Light-emitting diode (LED) light Cost bulbs are becoming fairly common Upfront, LED street light units in household use. Due to their LED bulbs are valued are significantly more expensive than energy efficiency and long-term cost- for their potential 93 traditional ones. According to an effectiveness, communities are bringing percent energy savings article in USA Today, LED units cost the bulbs to a larger scale for use in street about $1000 per unit compared to light fixtures. and 10 year lifespan. conventional units that are around $250 The fixtures include many each. Bulbs are more expensive too; individual LED bulbs in one unit. The LED street light bulbs themselves go light from LED bulbs is clear blue for about $40, while conventional high or white rather than yellowish like pressure sodium lamp bulbs are about incandescent street lamps.
    [Show full text]
  • Gas Lighting Resources for Teachers
    Gas nationalgridgas.com/resources-teachers Gas Lighting Resources for teachers © National Gas Museum Using the resource National Grid owns, manages and operates the national gas transmission network in Great Britain, making gas available when and where it’s needed all over the country. This resource is part of our series for schools, highlighting and celebrating how gas has lit our homes and streets and kept us warm for over 200 years. This resource primarily supports History at Key Stages 1 and 2 and the development of children’s enquiry, creative and critical thinking skills. It includes: • Information for teachers • Fascinating Did you know..? facts • A series of historical images to help children explore the theme, with additional information and questions to help them look closer. It can be combined with other resources in the series to explore wider topics such as: • Energy • Homes • Victorians • Jobs and work • The industrial revolution • Technology And used to support cross-curricular work in English, Technology, Science and Art & Design. Project the images onto a whiteboard to look at them really closely, print them out, cut them up or add them to presentations, Word documents and other digital applications. Our Classroom activities resource provides hints, tips and ideas for looking more closely and using the images for curriculum-linked learning. Resources in the series • Gas lighting • Heating and cooking with gas Gas• Gas gadgets • Gas – how was it made? •How The changing role ofwas women It • Transport and vehicles • Classroom activities •made? Your local gas heritage A brief history of gas lighting – information for teachers Before the 1800s, most homes, workplaces and streets were lit by candles, oil lamps or rushlights (rush plants dried and dipped in grease or fat).
    [Show full text]
  • Chapter 11 - Street Lighting Table of Contents
    TOC Design Manual Chapter 11 - Street Lighting Table of Contents Table of Contents Chapter 11 - Street Lighting 11A General Information 11A-1--------------------------------General Information A. General.................................................................................................................... 1 B. Industry Outlook..................................................................................................... 1 C. Iowa Code............................................................................................................... 2 D. Definitions.............................................................................................................. 4 E. References………………………………………………………………………... 7 11B Luminaires 11B-1----------------------------------Luminaires A. Lighting Sources..................................................................................................... 1 B. Light System Depreciation..................................................................................... 2 C. Luminaire Light Distribution Classifications......................................................... 3 D. References………………………………………………………………………... 8 11B-2--------------------------------LED Lighting A. LED vs. HPS Lighting............................................................................................. 1 B. LED Lighting Advantages........................................................................................ 2 C. LED Lighting Disadvantages..................................................................................
    [Show full text]
  • Hillsborough County Residential Street Lighting Program
    Hillsborough County Residential Street Lighting Program Public Works HCFLGov.net/PublicWorks | (813) 635-5400 Neighborhood street lights in unincorporated Hillsborough County are paid for by property owners as a separate Hillsborough County Consolidated Street Lighting Special Purpose District assessment on their property tax bill or as a fee within their homeowner’s association assessment. Adding new street lights to existing neighborhoods is possible, but requires agreement from the property owners who will be paying for them. Street Lighting Petition Process To establish a new lighting district or to upgrade an existing lighting district: Cost of Street Lighting Hillsborough County presently services nearly 800 Lighting 1. A resident or organization contacts Hillsborough County Districts, with over 33,000 lights. Annual revenue to provide Public Works Traffic Services Section at (813) 635-5400. these services is nearly $10 million. 2. Hillsborough County will request a lighting plan for the area Street lighting is billed annually in advance. The uniform non- from Tampa Electric Company (TECO). ad valorem assessment method, set forth in Chapter 197.3632, 3. Hillsborough County will send the petitioner a map showing Florida Statutes, is used to collect for Street Lighting Services. the boundaries of the proposed lighting area, a letter The assessments are part of the annual (ad valorem) property explaining the type of lighting, an approximate cost, a copy tax bill. of the proposed street lighting plan, and the petition forms. Cost of the Residential Street Lighting Program managed 4. The petitioner must circulate the petition among the by Hillsborough County Public Works Department, Traffic citizens within the boundaries of the proposed area.
    [Show full text]
  • Outdoor Lighting Service Guide
    Outdoor lighting service guide BGE.COM Before you dig, every dig. It’s the law. MISS UTILITY 811 or 1.800.257.7777 One call to Miss Utility can save time, money and lives. Before you pick up any equipment, pick up the phone and call Miss Utility. Miss Utility will notify all applicable utility companies and see to it that your job site is marked for all underground utility lines. One simple phone call can save you the time and hassle of dealing with job site mistakes and delays. Not to mention decrease liability, prevent damage, reduce injuries and possibly save lives. After all, safety is everyone’s job. Call Miss Utility, at least 48 hours prior to work, at 811 or 1.800.257.7777. Dig Safely CHECKLIST 1. Call Miss Utility at 811 or 1.800.257.7777 at least 48 hours prior to work. 2. Allow the required time for utilities to mark the underground lines. 3. Respect and protect all marks/flags. 4. Excavate with care. Take all reasonable actions to properly protect, support and backfill underground utility lines. 5. Immediately notify the utility if an underground utility line is damaged. 6. If damage creates an emergency, take immediate steps to safeguard life, health and property. Please check with your individual jurisdictions with regard to waiting times and specific digging guidelines. For more information, contact Miss Utility or check online at www.missutility.net. INTRODUCTION BGE provides this manual for customers who want to install Street Lighting (SL) or Private Area Lighting (PL) — with guidelines important to developers, general contractors, builders, architects, engineers, and private property and municipal customers.
    [Show full text]
  • City of Kingston LED Street Lighting Frequently Asked Questions
    City of Kingston LED Street Lighting Frequently Asked Questions Why is the City of Kingston upgrading the street lighting to LED? The City is upgrading over 2,000 streetlights with LED technology to significantly reduce energy consumption, utility/ maintenance costs, and greenhouse gas emissions associated with electricity generation for street lighting in the City. This process began in 2014 by hiring a consulting firm to analyze the benefits of switching our streetlights to LEDs, and continued in 2015 by purchasing the lights from Central Hudson Gas & Electric. Upgrading to LEDs will provide improved light quality and public safety throughout our City. Initial projections are that this improvement will reduce annual municipal energy use by 1,000,000 kWh, and save the City over $200,000 per year on utility bills and maintenance costs. How will traffic be impacted by the installation of the LED street lights? For the safety of the traveling public and the construction crews, there may be rolling short term closures of parking lanes or sidewalks as the new street light fixtures are installed. In some cases, where shoulder access to the street lights is limited, travel lane closures may be required. To minimize traffic impacts, the contractor will make every effort to schedule the work during times of low traffic volumes and to keep the duration of lane closures as brief as possible. Crews plan to replace several dozen fixtures per day, so we appreciate your patience while they are working in your ar- ea. Check the weekly traffic updates at www.kingston-ny.gov/streetlights for any closures or detours related to the LED conversion project.
    [Show full text]