Bringing Intelligence to Outdoor Lighting: Which is Better? Wired vs. Wireless SolutionsRita A. Renner, LEED® GA, Director, Global Marketing, Echelon CorporationMarch 2016

Credit(s) earned on completion of this course will be reported to AIA CES for AIA members. Certificates of Completion for both AIA members and non-AIA members are available upon request.

This course is registered with AIA CES for continuing professional education. As such, it does not include

content that may be deemed or construed to be an approval or endorsement by the AIA of any material of construction or any method or manner ofhandling, using, distributing, or dealing in any material or product.

___________________________________________

Questions related to specific materials, methods, and services will be addressed at the conclusion of this presentation.

Abstract As more and more organizations consider lighting upgrades for outdoor lighting, they are met

with a unique opportunity to also bring intelligence to their lighting systems by bundling controls along with the LED upgrade.

  But controls are unknown territory for many decision makers. And with LED lifespans ranging

upwards of 20 years, they want their construction or design professional to perform a comprehensive technology assessment before selecting a technology they will be using for the next generation. Today, both wired and wireless options are available in the marketplace, how does the professional make sure which technology is the best for the project?

  In this session, Rita Renner will explore the benefits of each technology as well as the

challenges, then look at ideal applications for each. She will also examine actual case studies where only one control technology was used, as well as examples where both technologies were used together, to illustrate how real project teams made assessments and implemented the best technology platform for their situation.

Learning Objectives What are benefits of intelligent outdoor lighting control solutions?

Understanding wired and wireless control technologies

Understanding the pros and cons of each control technology and which applications are ideal for each technology

Combining wired and wireless control technologies effectively

Looking at real world projects using wired, wireless and combined solutions

Why LEDs alone are not enough

Ener

gy C

onsu

mpti

on

HPS

Lig

hts

LED

Ligh

ts

Adap

tive

Cont

rols

Sens

ing

50% Saving

25% Addtional

Savings

Benefits of intelligent outdoor lighting controls 20-30% energy savings beyond savings realized by LED

replacement smart dimming and occupancy sensing

Up to 25% maintenance savings Automated asset monitoring Maintenance work flow optimization

More responsive lighting leads to increased revenues and/or productivity depending on application can reduce the payback period by

25%-80% over and above LED replacement

Enhanced energy savings Fixed time of day dimming &

astronomical clock Potential Savings up to 15%

Dynamic/Direction of Travel Lighting Event based dimming strategies Potential Savings up to 25%

Lamp Lifecycle Savings

Virtual Power Output Create any power lamp desired Potential Savings up to 10%

Lumen Maintenance Compensate for light loss over time Potential Savings up to 10%

Enhanced operational savings Extending Useful Life Improving Light Level Increasing Safety Reducing Liability Enhancing Exception Handling Reducing Night Patrols Anticipating Lamp Failure Providing Timely Outage Notifications

Cable theft Segment failure Power theft

A look at technology Standalone control solutions

Pole specific unconnected devices provide basic automatic ON/OFF according to onboard scheduling or astronomical control

No intelligence

Networked control technology platforms: Introduce intelligence both at the control device for distributed intelligent control at the pole Centralized intelligent control for scalability, data analysis, and smart applications Two basic control technology platforms:

Wired power line control networks Wireless RF control networks

Hybrid systems that combine “wired” and wireless

“Wired” power line control networks– No new wiring; uses existing AC power wiring– Adds modulated communication signal to existing AC power wiring for control communications

IP

Breaker Panel

Power line

Segment Controller

PL LightControllers

Up to 300 controllers per Segment

Application fits for power line technology– Environments where wireless technology is challenging

– Subway tunnels– Bridges

– Historic districts or other locations where decorative fixtures are used

Wireless (RF) control networks Uses RF communication protocol to send control signals to individual

fixtures, transmit usage data back to central management system

Controller

EthernetGateway

CentralManagementSystem

(Wi-Fi) Ethernet

Microwave Motion Sensor

ControllerController Controller

Microwave Motion Sensor

Microwave Motion Sensor

Microwave Motion Sensor

Microwave Motion Sensor

Microwave Motion Sensor

Microwave Motion Sensor

Controller

Controller

Application fits for wireless RF technology Retrofit solution for applications where existing

lighting is already in place

Ideal in large scale external deployments:– Parking lots– Malls– Universities

Hybrid control networks Combines both intelligent technology platforms

Power line “wired” network RF wireless network

Power line network

Wireless RF networkCMS

Gateway

Gateway

Application fits for hybrid control networks Ideal for city-wide deployments

Frequently include conventional street lighting + decorative lighting

Project best practices Assess project goals

Identify budget and possible financial incentives Grants Rebates

Assess technology fit Consider application characteristics

Weather factors? Visibility requirements? Aesthetic requirements?

Evaluating technologiesControl characteristic

Power line communications

Ideal application qualities

Wireless/RF communications

Ideal application qualities

How Hybrid solutions can meet application challenges:power line + RF

Requires Line of sight

No Curved, enclosed spaces (tunnels, underground parking)

yes Open spaces with limited obstructions

Use RF for streets & roadways, and power line for underpass or tunnel sections

Requires wired connections

Yes Use existing AC power wiring

No Retrofit Use power line for areas with decorative fixtures and RF for conventional fixtures (Corporate or educational campuses)

Impacted by environmental conditions

Rarely Harsh conditions

Possible Limited exposure to harsh weather conditions

Use power line for areas with harsh exposure (bridges) and RF for less exposed areas (streets, parking lots)

Physical installation Embedded in pole

Aesthetic considerations primary

Mounted on fixture

Aestheticconsiderations secondary

Use power line for decorative fixtures and RF for conventional fixtures

Finding the fit between project and technology: Case studies

City of Bydgoszcz, Poland Retrofit 7,200 lights across ~400 streets Improve safety Reduce energy and maintenance costs Maximize asset utilization

Power line wired control network Continually surveys traffic and weather conditions Anticipate and pinpoint lighting failures

Cut the city’s energy costs by 40% Reduced energy consumption and CO2 emissions Met EU’s ISO/IEC 13201 road lighting performance standard

Need

Solution

Outcome

Wired control network for reliability and performance

Dave Knapp Ford, Adrian MichiganRetrofit auto dealership show lot with LEDS + wireless controls

Need

Solution

Outcome

Aging show lot lighting Improve merchandising Reduce energy and maintenance costs Enhance theft deterrence Wireless intelligent controls + motion sensors Grouping lights into geographic zones Aggressive scheduling with multi-level control

during nighttime hours

Realized energy savings of 84% Reduced energy consumption and CO2 emissions

City of Cambridge, MassachusettsCity-wide LED + wireless control implementation provides personalized neighborhood lighting profiles

Need

Solution

Outcome

Lower energy and CO2 Ability to dim non–essential lights 50% Lower maintenance costs Fixture independent controls Self-managed software (no Cloud) Wireless control of 5,000 street lamps Considering pilot of hybrid PL+RF control Neighborhood-specific control to meet resident

preferences

Guaranteed construction costs, savings, and returns– Approx. $250,000 energy and operational savings/year

City of Bellingham, WashingtonCombined wired and wireless control platforms for coordinate fixture control from single interface

Need

Solution

Outcome

Upgrade 3,615 legacy street lights Reduce utility & operational costs Improve safety Eliminate over lighting Maintain fixture aesthetics Minimize risk

Hybrid architecture: Wired control of 500 fixtures Wireless control of 3100 fixtures

Energy savings of ~$350,000 per year ($600,000+ with dimming) Initial feedback of “too bright” changed to positive responses after

dimming lights to 70%

This concludes The American Institute of ArchitectsContinuing Education Systems Course

Thank YouRita A. Rennerrrenner@echelon.com