Smart Cities Cut Costs with LED Street Lights & Intelligent Controls

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1 Smart Cities Cut Costs with LED Street Lights & Intelligent Controls Association of Washington Cities Annual Conference June 24, 2015 Looking for LED street light photo 250 watt HPS 105 watt LED Presenting Today Andrew Woodruff City Engineer City of West Richland Fritz Feiten Manager, Business Development Ameresco

2 Agenda The Great Conversion to LED Street Lighting Who s doing it and why Wireless Street Light Control Systems Dimming strategies Control-based utility tariffs The West Richland Story Dramatic reduction in energy use First control-based tariff in North America Key Considerations for Your LED Conversion Funding Resources Using an Energy Savings Performance Contract The Next Step: Street Lighting as a Sensing Platform 3 Why Great Conversion? There are an estimated 44 million street lights in the US 1 LED penetration was 2% in Most will be converted to LED in the next five years 1. Source: US DOE Adoption of Light-Emitting Diodes in Common Lighting Applications, May

3 Where It s Happening Now Washington State Longview, 2010 Olympia and Renton, 2012 Seattle, Everett, Kent, Lakewood, Oak Harbor, West Richland, Bellevue and other cities are converting now North America Los Angeles: 157,000 lights, $8.4M annual savings Las Vegas: 42,000 lights, $2M annual savings Large city RFPs: Tucson (26,000), Honolulu (53,000), Phoenix (90,000) Around the World Europe, South America, Asia are moving faster than the US Renton Before Renton After 5 Why Are LED Street Lights So Popular? Save a lot of money Use less energy 55-65% less than HPS Require less maintenance than HPS Have long useful life 100,000 hours (15-20 years or longer) Provide superior illumination Public safety Economic development Are easily controlled Enables dimming strategies 6 3

4 HPS vs. LED Street Lights: Color Rendering Typical 150 watt HPS LED Replacement Fixture Watts Color Temperature 2000K (orange) 4000K (white) Color Rendering Index 22 (poor) 75 (excellent) Lumen Output Lumens per Watt HPS vs LED Street Lights: Light Distribution Typical 150 watt HPS LED Replacement Fixture Watts Color Temperature 2000K (orange) 4000K (white) Color Rendering Index 22 (poor) 75 (excellent) Lumen Output Lumens per Watt How can these be equivalent? 8 4

5 LED Light Distribution is Superior HPS: Single point light source with poor optical control Most lumen output falls directly below the luminaire Hot spots and poor uniformity LED: Multi-point aim-able light source with superb optical control Improved light distribution and uniformity Where most HPS lumens go 9 HPS vs. LED: Maintenance Costs 10 5

6 Wireless Street Light Controls Wireless network of connected street lights ROAM from Acuity Brands, GE LightGrid, other products Most use a self-forming, self-healing mesh network Benefits include Monitoring of street light performance Ability to group fixtures, schedule on/off and dimming times Utility-grade metering 11 It s 10pm. Do You Know Which Street Lights Are Working? 12 6

7 How and When to Dim Dusk/dawn trimming reduces energy use by 5-10% Dimming lights at times of day when lower traffic volume, pedestrian conflict, and other factors justify it Use US DOT s Guidelines for the Implementation of Reduced Lighting on Roadways International Dark-Sky Association guidelines Recommends dimming during late night hours 13 Using Street Light Controls to Meter Energy Use Many street light systems are unmetered Billed under flat-rate tariff -- $/month/light Equivalent to rates as high as $0.16 per kwh Wireless controls offer utility-grade metering +/-.05% accuracy same as your home meter Enable unmetered street lights to use a lower cost metered rate City of West Richland and Benton REA Rate case pending before CA PUC Many utilities evaluating This Instead of this. First in North America! 14 7

8 City of West Richland Located in SE Washington Tri-City or Quad Cities Population 13,500 Operates over 1,100 street lights at a cost of $94,152 per year 15 Project History Three years in the making Benton Rural Electric Association (BREA) Research HPS/Induction/LED Moving Technology Expense Logistics/Franchise Agreements Light demos 2014 Spring APWA - Tacoma Meeting w/ Fritz (Ameresco) Department of Commerce Grant Opportunity No risk, no money down to perform preliminary energy audit Determine if competitive project for grant Warning 16 8

9 Project History (cont) May 2014 Executed WA Department of Enterprise Services (DES) Agreement Enabled City to select Ameresco from DES pre-approved ESCOs. Ameresco began preliminary audit of existing street light system to determine if project was feasible and grant obtainable Light demos June 2014 Audit complete (options with and without ROAM) Proved a viable LED project (fundable, savings, etc.) Funding through Grant, BPA & BREA rebates & City July 2015 Council Authorizes Energy Audit and Grant September 2015: Applied for Department of Commerce Grant 17 Project Funding Total Project Costs: $1,150,765 BPA/BREA Rebates/Incentives: $195,000 State Commerce Energy Efficiency Grant: $281,937 State Local Programs low-interest Loan (12 yr.): $673,828 ($57,000/yr debt service) Estimated Savings Reduce annual electrical consumption by 65% Results in costs savings of $67,000/year $57,000 to debt service/$10,000 to annual maintenance Old: paid flat rate per light New: pay for actual usage 18 9

10 LED Lighting System AEL (American Electric Lighting) ATBO (50W) mid block/residential ATB2 (110W and 220W) intersections/major roadways Type III lighting distribution 4000K CCT (Color Temperature) Dimmable driver ATB2 ATBO 19 ROAM Adaptative Controls ROAM Energy Efficiency (Dimming Strategies) Dusk/Dawn Trimming Output Control System Programming (residential/late night dimming) Extend LED Product Life Systems Analysis/Monitoring Dayburners Light Malfunction Daily Reports Asset Management Increases Safety/Limits Liability Metering/Billing Each lights collects energy usage Energy Reporting Revenue Grade Energy Measurement Accuracy(0.5%, ANSI C12.20) 20 10

11 LED Retro-Fit Project Northwest Edison Started May 19, 2015 Finished June 4, 2015 Two Crews (40 lights/day/truck) Max day 151 lights total Averaged 100 fixtures/day Three Gateway Locations Cellular modems for backhaul Shared data plan 21 Results Positive Extremely quick installation Positive press Clear illumination Great communication Turn Key Project 10 Year Warranty Lessons Learned Light distribution Existing lighting inventory Public perception/complaints Created a lighting panel Media Event 1 st LED Installation 22 11

12 Results 23 Funding Resources for Your Street Light Conversion Small cities (population under 5,000) Transportation Improvement Board Medium to large cities New TIB program coming for cities with AV under $2B Department of Commerce Energy Efficiency Grants Utility incentive programs City inter-department loans State Treasurer s LOCAL program terms up to 12 years Tax Exempt Lease Purchase 24 12

13 Benefits of an Energy Savings Performance Contract Street light projects are more complicated than they appear ESPC provides GIS audit, lighting design, luminaire selection, installation and warranty from one firm Rapid project development & installation Time is money with 60% savings on the line Luminaire selection not subject to low bid Goal is best lifecycle cost (consider initial cost & energy use) Specification-based selections problematic due to short product cycles Guaranteed outcomes Guaranteed not-to-exceed project cost, performance & energy savings Lower overall project cost Energy efficient design ESCO luminaire buying power Installation bid to multiple qualified sub-contractors 25 Today s Most Common Sensing Platform Graphic courtesy of Acuity Brands 26 13

14 Tomorrow s Municipal Sensing Platform Graphic courtesy of Acuity Brands 27 The Smart Cities Vision Use street light infrastructure for new applications that Reduce costs Improve service Improve safety Generate revenue Why street lights? 30 feet high, ubiquitous, have power Major players Acuity Brands/Sensity/Cisco GE Intelligent Cities Initiative 28 14

15 The Smart Cities Vision Video cameras Microphones Accelerometer Environmental monitoring Hundreds of applications Smart parking Traffic optimization Scene safety for police and fire Snow depth detection Gunshot triangulation Wire theft detection Revenue opportunities Public Wi-Fi Graphic courtesy of Sensity Systems 29 Q & A Thank You! 30 15