The Role of Smart Lighting in the Smart Grid St Stewart Findlater - - PDF document

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May 09, 2023 365 likes •481 views

The Role of Smart Lighting in the Smart Grid St Stewart Findlater t Fi dl t VP, Engineering Discussing Today The smart grid needs a smart load The smart grid needs a smart load Lighting in commercial buildings LEDs a flexible

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The Role of Smart Lighting in the Smart Grid

St t Fi dl t Stewart Findlater VP, Engineering Discussing Today

 The smart grid needs a smart load  The smart grid needs a smart load  Lighting in commercial buildings  LEDs a flexible new light source  New approaches to lighting systems

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Smart Grid

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Impacts of U. S. Building on Resources

40% primary energy use 72% electricity consumption* 72% electricity consumption 39% of CO2 emissions

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*US Dept of Energy, EIA 2008 Annual Energy Outlook

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Use of Electricity in Commercial Buildings

38% 13% 13% 12% 12% 5% 4% 2% 2% 1%

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Source: Energy Information Administration, Annual Energy Review, Table 8.9 (June 2008)

Lighting and The Smart Grid The lighting system in a The lighting system in a commercial building…

Accounts for more than 1/3

 Accounts for more than 1/3

f all electricity usage

 Is the only major load that  Is the only major load that

can be dynamically shifted

 Is one of the most cost-  Is one of the most cost-

effective, energy efficiency projects that can be done

 Can be accurately measured

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Lighting and the Smart Grid

Achieving these benefits requires: Achieving these benefits requires:

 an intelligent lighting system, and  a better light source.

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Basic Benefits of LED Lights A hi t ffi i t

 Approaching most efficient

light source

 Lower heat output  Very long life (50,000 hrs)

y g ( , )

 Environmentally rugged (no

breakage mercury) breakage, mercury)

 Improved light quality  Start instantly, inherently

dimmable in efficient ways

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LED introduction

“LEDs - the third significant lighting invention since fire”

– Forbes Magazine

At 130 lumens / watt, LEDs have now surpassed all other sources

Commercial Interior Options for LEDs

2x2s & 2x4s

Lunera 2200 Maxlite MLFP2X235

Axis

Lunera 5400 Cree LR24, CR24 Albeo C-Series LEDs Linear Lunera 6400 Lightwild Richter 4” and 8’ Albeo Ledalite Jump Architectural Lighting

tracks,

Philips Omega Philips Lightolier

Beta USAI ACDC

MP- Monopoints

wnlights,

d task

Focal Point L if Alva

Zumtobel

Do an

Wila Lucifer Alva Sconces USAI Task

Zumtobel Slot

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LED Lighting – Happening Faster Than You Think

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**Source: Philips Lighting

Types of Controls

Wall switches and dimmers Timers & Lighting Control Panels

Fixture scale

Occupancy detection Daylighting systems Daylighting systems Wall / scene control

Zone scale

Addressable fixtures Advanced lighting systems Building Automation Systems

Building scale

Building Automation Systems

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Conventional Controls

junction box ballast Conventional

ccupancy

sensor junction box ballast 1 Electrical Panel 2 Fluorescent light fixture Control Features photocell sensor

1 2

fixture light switch

 Deployed as “overlays” to power  Hard to scale

C l i i i d

 Dimmable ballasts and

per-fixture addressability add costs

 Complex commissioning and

challenging to use/update

 Principally components with  Varying degrees of BMS integration

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p y p limited/zero extensibility

For The Rest of Us: The ‘Last’ Analog Dinosaur?

 When were these bulbs made?  Are they on/off?  Are they working?

e t ey

 How much power are they using?

?

 What temperature are they?  How much light are they emitting?  What is their color temperature

and color rendering?

 When are they going to fail?  Where is the problem in this system?

Where is the problem in this system?

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Re-Envisioning LED Lighting

 LEDs are digital  LEDs need low voltage  LEDs need low voltage

DC power

 Today, we run high

voltage AC to LED g drivers…

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Centralized DC power, control, and network architecture

Redwood Engines power and control

li ht ith t i ti lights with two-way communications to each fixture

Replaces all AC wiring from panel
Replaces all AC wiring from panel

with networking or low voltage cabling enabling faster, lower cost installs

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Installation: Standard Lighting vs. Networked Lighting

Driver Sensor Driver Sensor

High density sensor network

Redwood Adaptors at each fixture

detect light occupancy temperature detect light, occupancy, temperature and power levels

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