Post on 03-Apr-2018
Advanced Lighting Controls Winners and Losers
Dave Bisbee, CEM
April 9, 2014
Benefits
• Help customers sort fact from fiction
• Identify most promising technologies through direct, first-hand experience
• Avoid making major investments in technologies that don’t work.
Mission
“Work with researchers, customers, and others to develop, test, evaluate and promote new and underutilized energy efficiency technologies.”
Customer Advanced Technologies Program
Topics for Today
• Advanced Lighting Controls Program Overview
• What Are Advanced Lighting Controls?
• Winners and Losers
• Some Painful Lessons
• Final Thoughts
A Word from Our Attorneys…
The information, statements, representations, graphs and data included in this presentation are provided by SMUD as a service to our customers. SMUD does not endorse products or manufacturers. Mention of any particular product or manufacturer in this presentation should not be construed as an implied endorsement
US Department of Energy
Acknowledgement: “This material is based upon work supported by the Department of Energy under Award Number OE0000214.”
Disclaimer: “This report was prepared as an account of work sponsored by an agency of the United States Government. Neither the United States Government nor any agency thereof, nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Reference herein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not necessarily constitute or imply its endorsement, recommendation, or favoring by the United States Government or any agency thereof. The views and opinions of authors expressed herein do not necessarily state or reflect
those of the United States Government or any agency thereof.”
2010 - 2011: Three CAT program demonstration projects
• Wireless controls
• LED lighting fixtures
• Energy savings: 53 - 90%
• Demand savings: 50 - 60%
• Positive feedback from participants
• Simple payback: 10 to 15 years (OUCH)
Asked to assist Smart Grid Team in August 2011
ALC Program Overview Background Information
Advanced Lighting Controls Program (2012–2013)
• Customer incentives: $0.25 to 0.30 per kWh saved (calculated first year savings) up to a maximum of $300,000 per project, not to exceed 80% of the total cost of the project
• Savings and incentives calculated using SMUD’s Savings Calculation Spreadsheet
• SMUD Qualified Products List
• Results
19 projects completed (total cost: $2,606,751)
Total incentives: $1,560,569 (60% project cost)
Energy savings: 58 to 93%
Simple paybacks: 0.6 to 10 years (electric bill savings only)
ALC Program Overview Features/Results
ALC Program Overview Features/Results
Adura Technologies
Autani Corporation
Automated Logic
CAN2GO
Cloudbeam
Cooper Controls
Convia
Crestron
Daintree
Digital Lumens
Direct Digital Controls
Delmatic
Lighting Control and Design
Lumenergi
Lutron Electronics Co, Inc.
McWong Inc.
nLight (SensorSwitch, Acuity)
Philips Controls
Redwood Systems
Siemens
Synergy Lighting Controls (Acuity)
Trane
Universal Lighting Technologies
Wattstopper
Delta Controls
Encelium Technologies
Enlighted Inc.
EnOcean
Exergy
FMB
Greenworx
Honeywell
Ilumra
Johnson Controls
Kanepi
Leviton Manufacturing
The information, statements, representations, graphs and data included in this presentation are provided by SMUD as a service to our customers. SMUD does not endorse products or manufacturers. Mention of any particular product or
manufacturer in this presentation should not be construed as an implied endorsement
ALC Program Overview Companies Contacted (as of April 4, 2014)
Daintree Networks
Delta Controls
Digital Lumens
Encelium
enlighted
Lutron Electronics Co, Inc.
nLight (SensorSwitch, Acuity)
Synergy Lighting Controls (Acuity)
ALC Program Overview Qualified Products (as of April 4, 2014)
The information, statements, representations, graphs and data included in this presentation are provided by SMUD as a service to our customers. SMUD does not endorse products or manufacturers. Mention of any particular product or
manufacturer in this presentation should not be construed as an implied endorsement
1. Control Capabilities
2. Energy Tracking
3. Demand Response
1. Dimmable Lights (LED, Fluorescent, Metal Halide)
2. Motion / Daylight Sensors
What Are Advanced Lighting Controls? Basic Definition
Graphical User Interface (GUI) and control system with the following features:
1. Display the “real time” status of the lighting fixtures (i.e. on, off, dimmed mode, etc) overlaid onto a floor plan of the controlled space.
2. Modify operating schedules for the lighting fixtures within each lighting control zone via internal as well as external means (software interface, Internet, Smartphone, etc.).
What Are Advanced Lighting Controls? ALC Program System Requirements
Advanced Lighting Controls Program
This motion sensor is detecting people in this office
This fixture has been dimmed by the person working in this room.
These fixtures have been turned off
This motion sensor is not detecting people in this room. The sensor will turn off the lights once the time delay has been reached
Lunera 2’ x 2’ LED fixture (55 Watts max)
Graphical User Interface (GUI) features (continued):
3. Ability to measure, track and generate reports for the following parameters in each lighting control zone:
• Energy consumption (kWh)
• Electrical demand (kW)
• Estimated energy savings (compared to original lighting system)
• Estimated utility bill cost savings (compared to original lighting system)
What Are Advanced Lighting Controls? ALC Program System Requirements (cont.)
Advanced Lighting Controls Program
Graphical User Interface (GUI) features (continued):
4. Task Tuning: (limit fixtures to 80% of maximum output) for each lighting control zone via the software interface.
5. Adjust sensor setpoints within each lighting control zone via the software interface.
6. Automatic Demand Response “capable”
What Are Advanced Lighting Controls? ALC Program System Requirements (cont.)
• Winning applications:
save BIG energy, BIG dollars
and improve lighting quality
• Losing applications: save little energy and have very long paybacks
Winners and Losers It’s All About the “Apps”
What’s NOT ready now?
• Classrooms (i.e. elementary)
• Small projects (< 5,000 square feet)
• Office retrofits
Winners and Losers It’s All About the “Apps” (cont).
• Why?
– #1 reason: already relatively energy efficient
– Lighting fixture density is high (one fixture per 80 ft2)
– Labor and material costs are high to control relatively low wattage fixtures
– Fixture compatibility issues
– People factor: commissioning can be very tricky in occupied spaces
– Ceiling tiles often have to be removed…
Winners and Losers Losers: Office Retrofits
• Original Lighting System – Three-lamp fluorescent troffers (T8 / T12) – Manual wall switches (in board /outboard)
• New Lighting System – Redesign – 2 x 4 LED luminaires – 2 x 2 LED luminaires – LED downlights – Wireless controls – Sophisticated control strategies
• Results – 91% energy reduction – 73% demand reduction – Simple payback 9.9 years*
* Simple payback with research grant was 3.1 years
Winners and Losers Office Retrofit Case Study
• What is ready NOW?
– Parking garages
– Big box retail
– Industrial / Warehouses
Winners and Losers Winning Applications
• Why?
– Less luminaires per square foot (typically one fixture per 800 ft2)
– Lighting is designed prior to occupancy/product aisles
– No T-bar ceilings
– Scotopic/photopic
– Many areas with intermittent occupancy
Winners and Losers Winning Applications: Industrial & Warehouse
Blue Diamond Growers Distribution Center Case Study Results
Existing Lighting System
• 250 Watt MH fixtures
• 8,664 hours per year
• Controls: breaker panel
New Lighting System
• 160 Watt Dimmable LED
• Controls: Task Tuning + Motion Sensors
Lighting load profiles for pre-retrofit baseline, LED baseline, LED with task tuning and LED with task tuning and motion sensors.
Winners and Losers Blue Diamond DC Case Study Results
Winners and Losers Blue Diamond DC Case Study Results (cont.)
Project Cost: $257,000 Simple payback = 5.1 years* ($0.11 kWh) Simple payback with utility incentives = 1.8 years* *Very conservative – does not include refrigeration system savings
Winners and Losers Blue Diamond DC Case Study Results (cont.)
• Working with the Department of NO!
• Few control systems play nice together
• Adding controls to LED fixtures
• Cloud based servers & Silicon Valley start-ups
• It takes $$ to save $
• “Plug and Play”
• Pay attention to ballast curves
Winners and Losers Some Painfuls Lessons
Problem: the closed-loop daylighting sensors could not detect the floor
Winners and Losers Some Painfuls Lessons (cont.)
Contractor’s “solution”: added plates to mimic the ground!
Pay attention to fluorescent ballast curves!
70% 76%
Dimming ballast report: https://www.smud.org/en/business/save-energy/rebates-incentives-financing/customer-advanced-technologies.htm)
Winners and Losers Some Painfuls Lessons (cont.)
Some 0-10V ballasts have significant dead bands!
SMUD Dimming ballast report: https://www.smud.org/en/business/save-energy/rebates-incentives-financing/customer-advanced-technologies.htm
Winners and Losers Some Painfuls Lessons (cont.)
Think “systems” rather than “widgets” – Comprehensive analysis of the space
– Focus on applications with high energy use, high electric rates and maintenance challenges
– Leverage synergy between LEDs and lighting controls
– People factor
– Redesign along with lighting controls
Winners and Losers Final Thoughts
Some helpful hints for offices
– Consider using LED luminaires during major remodels or new construction projects
– Control ready luminaires (ZigBee®, WiFi or plug and play) should help reduce installation costs
– 2013 California Title 24 Energy Standards will require all most interior commercial lighting to be dimmable
Winners and Losers Final Thoughts (cont.)
Industrial / warehouse applications – Occupancy based controls with dimmable
LED drivers or fluorescent ballasts offer a lot of exciting control options
– Look for fixtures with integrated controls
– Try to bundle adjacent office spaces (or other spaces) as part of the overall project
– Redesign produces deep energy savings and lowers the cost of the new lighting system
Winners and Losers Final Thoughts (cont.)
ALC Program has been transferred to SMUD’s Custom Incentive Program
• Program will be operated by Commercial Products & Services Staff
– Custom incentives: $0.25 per kWh saved (calculated first year savings) up to a maximum of $100,000 per project (not to exceed 70% of the total project cost)
– Projects will follow the traditional custom incentive program application process and procedures
– Staff will use an updated version of the ALC Savings Calculation Spreadsheet to calculate incentives and savings
– Technical and project requirements will remain the same as the 2013 program.
• Energy Research & Development and Energy & Technology Center Staff will maintain the list of qualified products
Winners and Losers Final Thoughts (cont.)