Progress on Standardizing

Systems Based Energy

Performance

Ted Jones

Principal Program Manager

C&I Sector Lead

September 27, 2017

Minneapolis, MN

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Today’s Panel Session

Panel

Maria Northup, NEMA

Karen Willis, NEMA

Roy Harvey, OSRAM

SYLVANIA

Robert Hick, Leviton Lighting

and Energy Solutions

Session Content

NEMA

High Performance

Building Council

ANSI ASC C137 Lighting

Systems Committee

A Systems Approach to Energy Efficiency

Maria Northup

NEMA Industry Director

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Operations Government Relations Business Information

Medical Imaging & Technology Alliance

(MITA) Councils Strategic Initiatives

NEMA Lines of Business

Councils:

High Performance Buildings

Grid Modernization

Leadership

Internet of Things

Cybersecurity

Business Innovation

Operational Divisions:

Building Systems

Commercial Products

Connected Systems

Industrial Products

Lighting Systems

Medical Imaging

Utility Products

Systems Approach •Market Transparency through building

labels, ratings, and benchmarking and

disclosure

•Financing Solutions for building owners

to assist with the upfront cost of investing

in high-performance buildings

•Codes and Standards through the

development, adoption, and enforcement

of codes and standards

•Public Policy that promotes high-

performance buildings

•Education and Marketing on how these

solutions can increase the performance,

safety, security, and sustainability of their buildings

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Energy Benchmarking in High

Performance Buildings A Case Study in New York: How Transparency & Market Forces Drive Results

What is Benchmarking and Transparency?

• Buildings must measure their energy use and report a standardized rating, typically using ENERGY STAR Portfolio Manager.

29 Broadway New York, NY

2012: 7/100

39 Broadway New York, NY

2012: 79/100 Lowest 7% Top 21%

2013: 80/100 2014: 81/100

2013: 78/100 2014: 76/100

Typical Reporting Metrics

• ENERGY STAR Score (1-100)

• Site Energy Use Intensity (EUI = Btu/ft2)

• Weather-normalized Source EUI

• Water Use (gal/ft2)

• Greenhouse Gas Emissions (MtCO2-eq)

Impact

A recent analysis of data from

Austin, New York City, San

Francisco, and Seattle found

that benchmarking and

disclosure policies result in a

3% reduction in utility

expenditures.

Impact

MIT and University of Calgary

professors published a report in the

scientific journal Energy

demonstrating that the New York City

benchmarking policy resulted in a

14% decrease in energy use intensity

over four years.

77% changed how they operated their facility

75% invested in new equipment to improve their energy efficiency

Facility managers planning additional investments

ANSI Accredited Systems Committee

C137

Lighting Systems

Karen Willis ASC C137 Secretary

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•Historically, committees

focused on individual

components

•Regulators and Incentive Programs did the same

•But…… Efficacy requirements

ignore the fact that power can

vary over time.

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Then …..

Industry Responded

Wide variety of products for Systems

Recognized Need for SYSTEMS

Standards

that are focused on energy efficiency and

performance parameters not

addressed by component

level standards.

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Now …..

47 Member Organizations with ≈ 42 people attending

Quarterly meetings, held at member facilities

3 Standards in development

1 document published and

4 additional projects

underway.

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ASC C137 Facts

We are actively seeking members in the General Interest &

User categories

PINS – Public declaration of desire to start a new project

DRAFT – By Working Group of subject experts

REVIEW & BALLOT by full committee with broad

perspective

PUBLIC REVIEW PERIOD

PUBLICATION By NEMA as an ANSI Standard

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ASC C137 ANSI Process

NOT new IT standards

NOT Safety Standards

NOT Recommended Practices

NOT Component Standards

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What ANSI C137 is NOT

ASC C78

ASC C81

ASC C82

ASC C136

ANSI Accredited Systems Committee

C137

Lighting Systems

Roy Harvey ASC C137 Vice Chair

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•C137.0: Terms & definitions

•C137.1: 0-10 V dimming interface

•C137.2: Parking lighting system cybersecurity

•C137.x: Energy measurement

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4 projects

•Lighting system

•Compatibility

•Coexistence; Interoperability; Interchangeability

•System input power

•Lighting input power; Secondary device power; Emergency lighting

charging power; Standby

•References for other terms

•Status

•Approved by C137 8/2017

•Next steps: final edits, ANSI approval, NEMA publication

•Future: additional terms to support new standards

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C137.0: Terms & definitions

•Used C82.11 Annex A (fluorescent ballast dimming) as basis

•Expanded scope to LED drivers, control units

•Additions to enhance energy savings:

•Increases interoperability of drivers and controls; improves operation at lower

levels

•Adds Standby (Electronic off) mode; turn driver output off without extra wires

•Limits voltage drop in control wiring ≤0.3 V; near devices on bus similar to far

devices

•Status

•Approved by C137 8/2017

•Next steps: final edits, ANSI approval, NEMA publication

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C137.1: 0-10 V dimming interface

•Driver

•Standby support (optional)

•VControlHi: 8 or 9 V

•VControlLo: 1.0 (without Standby) or 1.0-1.5 V range (with Standby)

•VOn (turn on from Standby): 0.8-1.2 V

•Linear or logarithmic dimming curve

•Fade time (optional)

•Control unit

•Linear or logarithmic dimming curve

•Minimum control signal voltage

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C137.1 Manufacturer declarations - New

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C137.2 Cybersecurity for parking lighting

•Why is lighting systems security an issue?

•Too much light wastes energy, $

•Too little light may cause dissatisfaction or worse

•Energy data $

•Space utilization data $

•Lighting control system could be an entry point to other systems

•Positioning, VLC, etc, add to concerns

•Privacy

•Why start with parking?

•Supports C137 Applications working group on lighting systems for parking

•Work could be basis for standards for other lighting applications

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C137.2 Cybersecurity for parking lighting

•Working group surveyed existing cybersecurity standards

•Chose NIST SP800-82 and other NIST specs as basis

•Approach

•Use NIST Risk Management Framework

•Explain how to apply SP800-82 (Guide to Industrial Control

Systems Security)

•Status

•Working group completed draft

•C137 committee to review draft and decide next steps

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C137.x Energy measurement

•6 uses of energy data were identified; 3 were chosen to start:

•Energy performance verification for contracted services (e.g., ESCO, LaaS)

•Energy performance verification for EE incentive programs (utilities)

System energy management (e.g., building operator/managers)

•Working group prepared user survey to determine how driver energy data can

be used: parameters, accuracy, intervals, time stamp, luminaire/circuit/room

level

•Several users were interviewed

•DLC offered to fund more surveys so work can start on standard

•Next steps:

•Complete surveys; develop needs statement

•Develop standard, perhaps working with Committee C12

ANSI Accredited Systems Committee

C137

Lighting Systems

Robert Hick ASC C137

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Completed Standard: ANSI C137.3 Minimum Requirements for Installation of Energy Efficient Power over Ethernet (PoE) Lighting Systems

• Power over Ethernet (PoE) lighting systems are gaining popularity.

• Incorrect selection of Ethernet cable and poor installation practices may cause excessive losses and sub-optimal energy efficiency.

• This standard mainly addresses the cable selection to insure energy efficiency is maintained allowing PoE lighting systems to be a acceptable energy efficient alternative to traditional AC operated systems

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What is a PoE lighting System

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PoE Network Switch supplies

both DC power and high

speed communications

Cable carries DC power

and Data to Luminaire up

to 100 meters length

• PoE standards have been in place for 15 years allowing DC power and data on one single standardized cable system up to 30W.

• Recently new PoE specifications are allowing 60W and next year new standard will allow more then 90W making this a viable solution for LED Luminaires.

No AC

Power to the

Smart

Luminaire

Active Project: Lighting Systems Data Modeling

• Project started to research and determine the need and practicality of a standardized common data (or information) model for lighting systems to promote interoperability.

• First task was to collect and compare data models commonly used in lighting system protocols.

• Next task is to collect the most essential points of interoperability for lighting systems from ANSI C137 members.

• Final task is to report back to C137 general committee on recommendations for Data Model standard.

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Active Project: Lighting Systems Applications

• This Ad Hoc Group is currently developing a standard for Networked Parking Lot Lighting Systems as a first application.

• Members are reviewing options for communications.

• Communications are divided into 3 categories.

o Local Level – Within the Pole or Luminaire

o Lighting System Level – Between Luminaires and other Lighting System Devices

o Management System Level – Between Lighting System and CMS, BMS, EMS.

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New Active Project: Digital Interface with Auxiliary Power for Devices

• This standard specifies the requirements for a Digital Addressable Lighting Interface between a driver and one or more devices, such as sensors.

• It includes requirements for auxiliary power and a common interpretation of data exchange with protected access to the data.

• This standard builds on the IEC 62386, Digital Addressable Lighting Interface, series of standards and does not affect the existing standards.

• First Task: Define the additional data to be standardize for use in available memory banks. (i.e. Information on Luminaire and power requirements.)

• Next Task: Create requirements for Auxiliary Power input.

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Thank You

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