tuesday , june 18 th , 2014

Case Studies in Lighting Efficiency James L. Welch Hall Intelligent Lighting Control Kenneth Seeton and Bruce Pelton

Tuesday, June 18th

, 2014

© 2012 Enlighted, Inc. All Rights Reserved.

Lighting is the Largest Controllable Load

2

http://www.eiu.edu/sustainability/you_energy.php


Best-in-Class: Cost effective solution that installs quickly and painlessly

Market position: Over 35 Fortune 500 clients. 30+ million ft2 (2 788 000 m2) since 2011.

Rapid Payback: Avg. payback 2-3 years with 50%-75% lighting energy savings

New Intelligence: Data and analytics for HVAC control, ADR, enterprise-wide efficiencies

Enlighted at a Glance

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Traditional Zonal Lighting and Controls Wiring

• 3 separate systems for

power, control and

measurement

• Significant design time

and field set up

• Limited control – zone-

per-room

• Limited Intelligence

• Not easily expanded,

upgraded or re-

provisioned

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© 2012 Enlighted, Inc. All Rights Reserved. 5

Enlighted Building-Level Architecture (wireless)

ROOM

CONTROLLER

Push control profiles on command

Pull sensor data every 5 minutes

No mesh ─ point to point

• IEEE 802.15.4 standard

• 2.4 GHz ISM spectrum

• AES-128 bit encryption


Zonal vs GranularFeature Area

Zonal Granular Difference

Daylight Limited Area All Areas No sacrifice of savings for first cost

Occupancy Large Area Fine Grain Control Doesn’t activate entire area for one user

Facility Utilization

Limited/No Data

Complete Provides needed information for planning and operations

User Control

Not Possible Fixture by fixture PC, user friendly, password level

Security Limited Data, Low Resolution

Every 10 Feet (3m)

In Development

Traffic Flow Limited Data, Low Resolution

Every 10 Feet (3m)

Adjustable time base allows pattern Recognition

HVAC Integration

Additional Equipment

Fine Grain High Density

Usable data for facility manager and BMS via BACnet

Intelligence Network Dependent

Localized control and response

Walk-thru logic for hallways, Soft edges in offices (Envelope)

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Title 24 / ASRAE 90.1 Compliance

• Occupancy Sensors • Auto Shut-Off/Dimming• Outdoor Scheduling, Motion and Photocontrol• Demand Response• Daylight Harvesting to Secondary and Skylit Zones• Submetering of Loads Instead of Disaggregation• Smallest Zone for Best Power Adjustment Factors• Stairwell Light Dimming• Auto Shut-Off and Manual Controls in Each Space• Emergency/Egress Lighting Shutoff• Plug Load Control

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© 2012 Enlighted, Inc. All Rights Reserved. 8

Responsive Lighting Solutions Energy saving lighting control systems for open-plan offices: a field study

General Services Administration, Joy Wei, Abby Enscoe, & Francis Rubinstein Galasiu, A. D., Newsham, G. R., Suvagau, C., & Sander, D. M. (2007).

Lawrence Berkeley National Laboratory Principal Investigator: Francis Rubinstein

.

Zonal


Sensor• Occupancy

• Dual Tech• DPIR – Motion• Light/Logic

• Light Levels• Daylight• Source/Fixture Degradation

Offset

• Thermal• Thermal Distribution• Airflow Patterns• Inform BMS & HVAC via BACnet

• Local Microprocessor• Eliminates Network

Dependency

• Hardwired to Fixture• Dependability

• Transceiver Capability• Range Extension

• Dry, Damp and IP65

• Multiple Optics• High Bay, Pole, Office,

Garage

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Push control profiles on command

Pull sensor data every 5 minutes

No mesh ─ point to point

• IEEE 802.15.4 standard

• 2.4 GHz ISM spectrum

• AES-128 bit encryption


Network Components

Control UnitNormally Closed Relay

• Lights on with any problemPower Metering0-10V Control Line

• LED, Fluorescent, HID, Plasma, OLED

Gateway

250+ Sensors

300ft(100m)Range

POE Powered

Energy Manager

1000+ Sensors

Continuous Local Backup

Backup to network share

Future Cloud Connections

Wireless Switch

Dim

Brighten

Scenes

Automatic

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Real World Examples

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Sensity%On Watts Foot Candles

19 3 0

21 8 0.27

26 11 0.36

31 13 0.45

41 18 0.64

51 22 0.8

61 28 0.96

71 33 1.12

75 35

81 38 1.26

91 43 1.4

100 44 1.46

original 100w HPS

new 44w

savings 64%

enlighted savings based on 44w

74%

Profile set at 25% min 75% max with 1 min delay


Computer Lab, Geo Lab, Classroom, Corridor

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Actually Savings 213-12-0500290287

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Project Cost 57,490$ Incentive 28,745$ Final Cost 28,745$ Savings/yr 20,227$ R.O.I. 1.42 yrs

area SensorskWh

savings1st Floor WH Hallways 12,3363rd Floor WH Hallways 10,3924th Floor WH Hallways 10,896Server Room 25,213l.T. Offices 34,592Admin Offices 19,750SAC-2 Hallways 8,177SAC-2 Classrooms 13,356Totals 134,712

49352084

343

Interactive Effects ~ Los Angeles134,712 x 1.155 = 155,592 kWh/yr

34504724


Realtime Status of Each Fixture

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Profile Management

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Hallway Profile

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Reporting

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Energy Usage and Savings by Measure

Reduction Through Task

Tuning Occupancy

Reduction

Daylight

Harvesting

Net

Consumption

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Carbon Reduction

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Energy Consumption Report

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Consumption by Space Type

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Fixture Outage Reporting

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Time of Use Pricing Model for ADR

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Commissioning

X

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Fixtures Discovered and Tested Pending Strobing and Placement

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Occupancy and Utilization

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Motion & Occupancy Data Analysis

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Space Utilization: Occupancy Maps

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Occupancy heat map by area highlights specific areas that are underutilized and areas that are heavily

utilized.


Pervasive temperature

sensors describe hot and

cold zones in the building

Pervasive occupancy

sensors indicate set-back

zones for active duty cycling

Optimizing HVAC with New Data

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tuesday , june 18 th , 2014

Documents

lighting control systems

hvac control

limited control zone

traditional zonal lighting

lighting efficiency

commandpull sensor data

low resolutionevery

room limited intelligence