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Transcript of Affordable Retrofit Technology to Reduce Costs and Enhance the Flexibility of Your Office Building...
October 26, 2011 ULI Fall Conference
Affordable Retrofit Technology to Reduce Energy Costs and Enhance the Flexibility of Your Office
Building
Tom Myers, Director - Commercial Real Estate Solutions,Lutron Electronics Co., Inc.
Dana Schneider, Vice President, Energy and Sustainability ServicesJones Lang LaSalle
October 26, 2011 ULI Fall Conference
Agenda
• Why focus on lighting control retrofits?• How to reduce lighting energy use.• Common control retrofit opportunities
– how new technology makes it possible
• Total installed costs:– old “wired” technology vs. new wireless solutions
• Expanding control to HVAC and plug-loads• Retrofit of the Empire State Building:
– advancements in lighting design and control solutions– cost comparisons and return-on-investment
• Questions, comments
October 26, 2011 ULI Fall Conference
Why focus on lighting?
Light controls can save 60% or more of the lighting energy used in Commercial buildings
October 26, 2011 ULI Fall Conference
Three fundamentals:
1. Reduce light power density (watts)– adopt efficient lamps and fixtures
2. Minimize the amount of time lights are “on” (hours)– Lights “on” only when they need to be “on”
3. Optimize the light levels when lights need to be “on” (watts)– “active” optimization of light output
Reducing lighting energy use (watt-hours)
October 26, 2011 ULI Fall Conference
Reducing lighting energy use (watt-hours)
1. Reduce light power density (watts)• adopt efficient lamps and fixtures
October 26, 2011 ULI Fall Conference
Reducing lighting energy use (watt-hours)
2. Minimize the amount of time lights are “on” (hours)• control the hours your lights are “on”
Central Time Clock
Occupancy / Vacancy Sensors
October 26, 2011 ULI Fall Conference
Reducing lighting energy use (watt-hours)
3. Optimize the light levels when lights need to be “on” (watts)• “active” optimization of light output
- High-end tuning
- Daylight Harvesting
- Personal control
October 26, 2011 ULI Fall Conference
Reducing lighting energy use (watt-hours)
3. Optimize the light levels when lights need to be “on” (watts)• “active” optimization of light output
00
10
10
20 30 40 50 60 70 80 90
90
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70
60
50
40
30
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Light (%)
Ene
rgy
Usa
g e (
%)
October 26, 2011 ULI Fall Conference
Common control retrofit opportunity
• Goal:– Add an effective occupancy sensor
to an existing space
• Situation:– existing light switch at entrance
– no occupancy sensor installed
– wrong sensor installed in the wrong location
October 26, 2011 ULI Fall Conference
Common control retrofit opportunity
• Solution:– ceiling mounted motion sensor
October 26, 2011 ULI Fall Conference
Ceiling mounted motion sensor; the cost
• Total installed costs = $565.00
Installation labor = $425.00Materials = $140
October 26, 2011 ULI Fall Conference
Control retrofit solution – wireless technology
• Goal:– reduce installed costs by
reducing installation labor
• Solution:– wireless sensors and controls
October 26, 2011 ULI Fall Conference
Control retrofit solution – wireless technology
• Solution:– wireless sensors and controls
October 26, 2011 ULI Fall Conference
Control retrofit solution – wireless technology
• Solution:– wireless sensors and controls
October 26, 2011 ULI Fall Conference
Wireless Ceiling mounted motion sensor, cost
• Total installed costs = $160 to $350
Installation labor < $190.00Materials = $160.00
or
October 26, 2011 ULI Fall Conference
Ceiling mounted motion sensor, costs
$300
$600
wirelesswired
material
labor
installed costs
October 26, 2011 ULI Fall Conference
Control retrofit solution – wireless technology
• Solution:– adding daylighting control
October 26, 2011 ULI Fall Conference
Control retrofit solution – wireless technology
• Solution: adding daylighting control
October 26, 2011 ULI Fall Conference
Control retrofit solution – wireless technology
• Solution: adding “phantom load” control
October 26, 2011 ULI Fall Conference
Control retrofit solution – wireless technology
• Solution: adding “phantom load” control
October 26, 2011 ULI Fall Conference
Control retrofit solution – wireless technology
• Solution: adding “phantom load” control
October 26, 2011 ULI Fall Conference
Control retrofit solution – wireless technology
• Solution: adding control of HVAC equipment
HVAC
October 26, 2011 ULI Fall Conference
Scalable Expandable Solutions – Tenant Space
Lighting Control Panel
October 26, 2011 ULI Fall Conference
Scalable Expandable Solutions – Tenant Space
October 26, 2011 ULI Fall Conference
Scalable Expandable Solutions – Stairwells
October 26, 2011 ULI Fall Conference
Scalable Expandable Solutions – Stairwells
October 26, 2011 ULI Fall Conference
Scalable Expandable Solutions – Stairwells
October 26, 2011 ULI Fall Conference
Retrofit of the Empire State Building
Design and Construction of Tenant Pre-Built Spaces
October 26, 2011 ULI Fall Conference
44
Reduce energy use by 38 percent
Annual savings of $4.4M
3.1 year payback
Reduce carbon emissions 105,000 metric tons
Energy Star 90
LEED EBOM Gold
Energy Performance Contract
Quantifiable transparent results
Serve as a model for owners of existing buildings
The Empire State Building: A groundbreaking energy and sustainability program
October 26, 2011 ULI Fall Conference
Retrofit of the Empire State Building
• Goals for tenant pre-built projects:
– enhance performance while reducing renovation costs
– reduce the cost and time required for future tenant improvements
October 26, 2011 ULI Fall Conference
Retrofit of the Empire State Building
• Goals:
– enhance performance while reducing renovation costs
– reduce the cost and time required for future tenant improvements
– no compromise on tenant service and comfort
October 26, 2011 ULI Fall Conference
Retrofit of the Empire State Building
• Goals:
– enhance performance while reducing renovation costs
– reduce the cost and time required for future tenant improvements
– no compromise on tenant service and comfort
– adopt solutions that integrate & interoperate with other building systems.
October 26, 2011 ULI Fall Conference
Advancements in design and performance
October 26, 2011 ULI Fall Conference
Advancements in design and performance
October 26, 2011 ULI Fall Conference
Advancements in design and performance
October 26, 2011 ULI Fall Conference
Installed Costs & Return on Investment
2Light Fixtures & Controls
Labor
installed costs
($ / sf)
1.0 w/sf
wired
4
6
8
10
October 26, 2011 ULI Fall Conference
Installed Costs & Return on Investment
2Light Fixtures & Controls
Labor
installed costs
($ / sf)
.7 w/sf1.0 w/sf
wired wired
4
6
8
10
October 26, 2011 ULI Fall Conference
Installed Costs & Return on Investment
2
wireless
Light Fixtures & Controls
Labor
installed costs
($ / sf)
.7 w/sf .7 w/sf1.0 w/sf
wired wired
4
6
8
10
October 26, 2011 ULI Fall Conference
Installed Costs & Return on Investment
2
wireless
Light Fixtures & Controls
Labor
installed costs
($ / sf)
.7 w/sf .7 w/sf1.0 w/sf
wired wired
2.75 yrs
6 yrs
4
6
8
10
payback period
October 26, 2011 ULI Fall Conference
Reduced costs of tenant improvements
Controls and light fixtures are reconfigured with iPod or PC
October 26, 2011 ULI Fall Conference
1. Reduced design light power density by 30%• from 1.0 watts/sf to 0.7 watts/sf• adopted T5HO fluorescent lamps vs. T8 lamps• LED fixtures adopted in entrance areas
2. Minimized the amount of time lights are “on”• occupancy and vacancy sensors in all spaces
3. Reduced average lighting power by 50%• daylighting control: automatically dim lights in
response to available daylight.• average lighting power reduced from 0.7 to
0.35 watts per sq. ft. of tenant space.
4. Reduced the payback period by 55%• from 6 years to 2.75 years
Advancements in design and performance
October 26, 2011 ULI Fall Conference
1. HVAC• VAV• Demand Controlled Ventilation• Right-size equipment
2. BMS• Controllability for comfort and efficiency
3. Plug Loads• Desk Loads• Equipment – Energy Star• IT – IDF Closets, Data Centers
4. Tenant Engagement
5. Submetering
Advancements in design and performance
October 26, 2011 ULI Fall Conference
• Engage you design team and contractors
– assure accurate, clear design– train contractors:
• prior to bid-day
• assure proper installation
• Select established vendors– factory commissioning and service
What we’ve learned
October 26, 2011 ULI Fall Conference
Affordable Retrofit Technology to Reduce Energy Costs and Enhance the Flexibility of Your Office
Building
Questions&
Comments
October 26, 2011 ULI Fall Conference
Higher performance, increased profits