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The Interior Lighting Campaign: Successful Strategies + New Opportunities Wednesday, May 17 2017 11:15 – 12:30
Today’s Presenters
Doyle Trankel, PE, CELP
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Kevin Powell Michael Myer
Interior Lighting
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Between 2003 and 2012: • 14% increase in total buildings • 22% increase in total floorspace • Energy use in the 5.6 million buildings increased ONLY 7% • Space heating and lighting down by 11% in share of energy use
2012 CBECS - EIA
2003
2012
2017
All of this is before the wide-scale use of LEDs & advance controls
The Government’s Landlord
8,792 assets • Owned: 1,621 assets
374M square feet • Owned: 183M square feet
1.1 million federal employees $365M annual energy bill • $ 229 M for owned assets • $ 47 M = lighting (owned assets)
TARGET
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• >1,800 Stores in the United States • 38 Distribution Centers • Target.com • 323,000 Team Members
Interior Lighting
Interior Lighting Campaign – Overview
Launched May 2015 by:
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Why Troffers?
Current focus High-efficiency troffers and controls applications Now including other fixture types as well
Goal: 1M high-efficiency troffers -- surpassed, currently 1.2 million
troffers Retrofit and new construction Includes TLEDs, LED retrofit kits, high-efficiency luminaires Encourages use of controls for added energy savings
Interior Lighting Campaign
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Resources Incentive lists Technology reports Case studies Calculation tools Webinars
Technical Assistance Site identification Technology option evaluation Application of specification Award entry content
Be Recognized Listed/linked on Campaign website Case studies of recognized projects Newsletter articles and tweets
Join as a Participant Building owners Building managers Others end users including
federal, state, and municipal buildings
Join as a Supporter Energy efficiency groups Manufacturers Utilities ESCOs Lighting designers Others who influence but don’t
directly manage buildings
Interior Lighting Campaign – Learn More
Free resources Free to join Free technical
assistance
http://www.interiorlightingcampaign.org #IntLtgCampaign
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Interior Lighting Campaign – Resources
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Specifications
Reports Fact Sheets
M&V guidance
Energy Estimator to compare against code
List of utility incentives
Technical Assistance
(limited)
ILC Recognition
• 26 million kWh saved annually at sites submitted
• ≈ Energy usage of 2366 homes • ≈ $2.7 M in electricity savings
• 14,400 kWh saved at a medium-sized new construction
• 217,000 kWh saved at a large-sized new construction
• 40% saved in new construction stores
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ILC 2016 RECOGNITION
Recognition:
Highest Absolute Annual Savings for Troffer Lighting New Construction - Medium Project
Highest Absolute Annual Savings for Troffer Lighting New Construction - Large Project
Highest Percentage of Annual Savings for Troffer Lighting New Construction - Medium Project
Highest Percentage of Annual Savings for Troffer Lighting New Construction - Large Project
Special Recognition Categories - Largest Portfolio-wide Annual Absolute Energy Savings
2016 ILC Recognition: GSA New Carrollton Federal Building
Awards Large project
Highest Absolute Annual Savings for Troffer Lighting Retrofits
Highest Percentage of Annual Savings for Troffer Lighting Retrofits
82% energy reduction
2,700,000 kWh/yr energy use = 200 homes
77% from new equipment 5% from controls
Award
Best Use of Lighting Controls in a Single Building
2016 ILC Recognition: GSA Byron Rodgers Federal Building & Courthouse
59% energy reduction
477,000 kWh/yr modeled, not measured
44% from new equipment 15% from controls
More about U.S. GSA
REPLACE 1.53 MILLION LINEAR FLUORESCENT LAMPS (LFLS)
Savings if GSA Converts LFLs to LEDs
$
16,500,000 ANNUAL SAVINGS at a national average utility rate of $0.105/kWh
=
70% GSA indoor lighting energy is T8 troffer @ GPG minimum 50% LED+Controls savings
GSA Lighting Energy Use Intensity (EUI)
21% more efficient
Average lighting baseline kWh/ft2/yr
4.1 National (typical U.S. commercial buildings)
3.25 GSA {
GPG enables GSA to make sound investment decisions on next
generation building technologies based on their real world
performance.
How Does GPG Work?
Identify promising technologies at the edge of commercialization
Pilot technology installations within GSA’s real estate portfolio
Partner with Department of Energy national laboratories to objectively evaluate real-world performance
Recommend technologies with broad deployment potential
GPG Lighting Investments, 2011-2016
Completed
GPG-002 Occupant Responsive Lighting, September 2012
GPG-015 Integrated Daylighting, July 2014
GPG-022 Wireless Lighting Controls, May 2015
GPG-024 LEDs w Integrated Controls, August 2015
GPG-026 LED Downlight Lamps for CFL Fixtures, April 2016
GPG-030 Linear LED Lighting Retrofits, September 2016
Ongoing
LED Troffer Replacement with Advanced Lighting Controls
Networked Lighting
• Technology: LED replacement lamp that uses the same four-pin socket and electronic ballast as an incumbent CFL.
• Energy Savings: 40-50% energy savings, $6.37 annual savings over typical CFL lamp at average utility rate of $0.11/kWh.
• Occupant Satisfaction: LEDs approximated CFL light output and occupants noticed little difference.
• Cost-Effectiveness: < 3 year payback at average utility rate.
• Deployment: Broad deployment where advanced lighting controls are not desired or useful.
GPG-026. LED Downlight Lamps for CFLs
GPG-026. LED Downlight Lamps for CFL Fixtures
LED Replacement Options for CFL Downlights Consider compatibility and controls when selecting an LED replacement
• Technology: LED fixtures with integrated onboard photo and occupancy sensors
• Energy Savings: 69% energy savings over GSA average: 41% from LED, 28% from advanced lighting controls.
• Cost-Effectiveness: 40% return on investment for GSA retrofits—1.4 SIR at current estimated cost and utility rate of $.10 kWh. 25% of cost savings is due to reduced maintenance @ LEDs last twice as long as fluorescent lamps.
• Deployment: Recommended for all renovations. Consider for retrofits; prioritize facilities with minimal lighting controls, lighting energy use > 3.25 kWh/ft2/yr and utility rates > $.10/kWh (national average).
GPG-024. LED Fixtures with Controls
GPG-024. LED Fixtures with Controls
Positive Return on Investment for Both Retrofits and Renovations
Best Practices for Retrofitting Fluorescent Troffers with LEDs
Lessons Learned from Testbed Assessments: • “Plug and Play” ALC is LCC effective in renovations
and retrofits. “Digital Ceiling” evaluation underway
• Because LEDs are directional, LED replacement lumens can be 30% less than existing fluorescent.
• Rated light output differed from measured light levels. At one testbed, retrofits with similar rated lumens showed a difference of 30% in light output.
• It is critical to test LEDs in place, assessing such things as fit, light levels, color, and glare.
More about Target
AGENDA
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• Target • Sales Floor Lighting • LED Upgrade Basics • Hurdles • Take-aways
SALES FLOOR LIGHTING
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•2 Million+ 2x4 lights •Typical store ~ 1100 lights •Fluorescent Wattage – 59-99 Watts
•2, 3 and 4 lamp fixtures •Energy profile – Lighting is 25-30% of overall energy usage
LED SPECIFICATIONS
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•38 Watts •3500K •Wireless Dimming •LED + Driver •Ability to retrofit existing 2x4 lights
HURDLES
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•Existing Inventory •Logistics – how to install without impacting store operations? •Warranty
TAKE-AWAYS
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•Test and Pilot
•Not all LEDs equal, unknown results without testing
•Understand what you want or need •Be prepared to capture Rebates /Incentives
Tubular LEDs (TLEDs)
TLEDs
TLEDs
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TLEDs:
• Per BriteSwtich, in 2017 rebates for LED tubes dropped by 17% to $6.84
BriteSwitch
Question
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What is your organizations experience with TLEDs?
• Technology: Two LED retrofit kids compatible with ALCs that replace the lamp and driver using the existing lens and fixture. No need to alter the ceiling grid.
• Energy Savings: 27-29% energy savings, additional savings possible with ALC.
• Light Output: LED retrofit kits had similar illuminance levels but different light output.
• Installation: Easy installation, similar to LFL lamp & ballast replacement.
• Cost-Effectiveness: 6 yr payback at avg. utility rate and $50 fixture cost.
• Deployment: Fixtures with lenses and sockets in good condition and where ALC is desired and useful. To assess fit, light levels, color temperature and glare, test a small number of lights before committing to purchase.
SEPTEMBER 2016 | Lighting : Early Commercial
GPG-030. Linear LED Lighting Retrofits
SEPTEMBER 2016 | Lighting : Early Commercial
GPG-030. Linear LED Lighting Retrofits
LED Retrofit Kits Assessed During M&V
Consider compatibility and controls when selecting an LED replacement
LED Retrofit Kits
LED Retrofit Kits
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Overview: • Leave fixture shell in place replace
electrical and optical “guts” • Short installation time lower labor costs • Limited quantity of retrofit kits installed
LED Retrofit Kits
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Overview: • Better Buildings Alliance
is working on a performance challenge specification for retrofit kits
Question
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What is your organizations experience with retrofit kits?
Source: Lithonia Lighting RTLR LED for Parabolics
LED SPECIFICATIONS
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•38 Watts •3500K •Wireless Dimming •LED + Driver •Ability to retrofit existing 2x4 lights
Lighting Controls
Lighting Controls
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32%
28%
8% 7%
7%
8% 10%
25%
Multiple Types
Daylighting
Occupancy Sensors
Personal Tuning
Institutional Tuning Other
Daylighting and Occupancy
Occupancy and Personal Tuning
Question
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What is your organizations experience with lighting controls?
What is your organization’s experience with advanced lighting controls?
Digital Occ. Sensors? Visible Light
Communication Asset tracking
JULY 2014 | Building Envelope : Early Commercial
GPG-015. Integrated Daylighting
Lighting Energy Savings Control Strategies
Increased savings from Occupancy Control limits potential savings from Daylight Harvesting
• Technology: Occupant responsive lighting employed 3 control strategies: occupancy sensing, timer scheduling and dimming.
• Energy Savings: Energy savings for 7 locations ranged between 27% - 63%.
• Cost-Effectiveness: Largest savings at a call center where payback was < 7 years.
• Deployment: Deploy at sites with operating days > 14 hours, utility costs > $0.11/kWh and variable occupancy patterns.
SEPTEMBER 2012 | Lighting : Early Commercial
GPG-002. Occupant Responsive Lighting
SEPTEMBER 2012 | Lighting : Early Commercial
GPG-002. Occupant Responsive Lighting
Annual Energy Savings By Site
Energy savings ranged from 27% to 63%
• Technology: Available natural light offsets use of electric light in perimeter office spaces where perimeter depth is 2 times the maximum window height.
• Energy Savings: 27% average lighting energy savings across 6 buildings.
• Operations & Maintenance: Study focused on fluorescent-lamp-based lighting, the dominant technology at the time. Conclusions may not apply to daylight harvesting with LED-based systems.
• Deployment: Target buildings with LPD > 1.1 w/ft2 and EUI > 3.3 kWh/ft2.
JULY 2014 | Building Envelope : Early Commercial
GPG-015. Integrated Daylighting
• Technology: Enables advanced lighting control (ALC) functionality without the expense of installing dedicated control wiring.
• Energy Savings: 54% normalized energy savings for GSA when retrofitted on top of fluorescent lamps and dimmable ballasts, 78% when combined with LED upgrade.
• Cost-Effectiveness: $1/ft2 incremental cost of adding wireless ALC in renovations, with 3 - 6 year payback.
• Occupant Satisfaction: Increased flexibility in light levels to suit user preferences.
• Deployment: Recommended integrated with LED for new construction and renovations. Consider for retrofits, targeting facilities with minimal lighting controls, high lighting energy use (EUI > 3.25 kWh/ft2) and utility rates > $.10 kWh
MAY 2015 | Lighting : Pre-Commercial
GPG-022. Wireless ALC
Payback for Advanced Lighting Controls
Savings are heavily dependent on baseline conditions
MAY 2015 | Lighting : Pre-Commercial
GPG-022. Wireless ALC
Power over Ethernet (PoE)
Power over Ethernet (PoE)
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Overview: • Combine power and data
communications within the same wiring
• Allows for distributed power and networks
• Cat 5/6 cables used instead of more expensive conduits and traditional wiring
Power over Ethernet (PoE)
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Question
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• What is your organizations experience with PoE?
Other questions
Question
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• What is your organization’s experience with combining lighting & other building systems (e.g., HVAC + plugs)?
Question
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• As equipment gets smarter, how does your organization address security?
Q & A
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Kevin Powell [email protected] 510-423-3384
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Linda Sandahl [email protected] 509-375-2609
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Discussion
Michael Myer [email protected] 509-375-7292
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Doyle Trankel [email protected] 612-761-1626
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