Occupancy

Report
Case Studies in Lighting Efficiency
James L. Welch Hall Intelligent Lighting Control
Kenneth Seeton and Bruce Pelton
Tuesday, June 18th, 2014
Lighting is the Largest Controllable Load
http://www.eiu.edu/sustainability/you_energy.php
© 2012 Enlighted, Inc. All Rights Reserved.
2
Enlighted at a Glance
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
© 2012 Enlighted, Inc. All Rights Reserved.
3
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 reprovisioned
© 2012 Enlighted, Inc. All Rights Reserved.
4
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
© 2012 Enlighted, Inc. All Rights Reserved.
5
Zonal vs Granular
Feature 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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6
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
© 2012 Enlighted, Inc. All Rights Reserved.
7
Zonal
Responsive Lighting Solutions
General Services Administration, Joy Wei, Abby Enscoe, & Francis Rubinstein
Lawrence Berkeley National Laboratory Principal Investigator: Francis Rubinstein
.© 2012 Enlighted, Inc. All Rights Reserved.
Energy saving lighting control systems for open-plan offices: a field study
Galasiu, A. D., Newsham, G. R., Suvagau, C., & Sander, D. M. (2007).
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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
© 2012 Enlighted, Inc. All Rights Reserved.
•
Local Microprocessor
• Eliminates Network
Dependency
• Hardwired to Fixture
• Dependability
• Transceiver Capability
• Range Extension
• Dry, Damp and IP65
• Multiple Optics
•
High Bay, Pole, Office,
Garage
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
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Network Components
Control Unit
Normally Closed Relay
Gateway
250+ Sensors
300ft(100m)Range
POE Powered
• Lights on with any problem
Power Metering
0-10V Control Line
• LED, Fluorescent, HID,
Plasma, OLED
Wireless Switch
Dim
Brighten
Scenes
Automatic
Energy Manager
1000+ Sensors
Continuous Local Backup
Backup to network share
Future Cloud Connections
© 2012 Enlighted, Inc. All Rights Reserved.
10
Real World Examples
© 2012 Enlighted, Inc. All Rights Reserved.
11
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
© 2012 Enlighted, Inc. All Rights Reserved.
Computer Lab, Geo Lab, Classroom, Corridor
© 2012 Enlighted, Inc. All Rights Reserved.
13
Actually Savings
213-12-0500290287
kWh
area
Sensors savings
1st Floor WH Hallways
34
12,336
3rd Floor WH Hallways
50
10,392
4th Floor WH Hallways
47
10,896
Server Room
24
25,213
l.T. Offices
49
34,592
Admin Offices
35
19,750
SAC-2 Hallways
20
8,177
SAC-2 Classrooms
84
13,356
Totals
343 134,712
Project Cost
Incentive
Final Cost
Savings/yr
R.O.I.
$
$
$
$
57,490
28,745
28,745
20,227
1.42 yrs
Interactive Effects ~ Los Angeles
134,712 x 1.155 = 155,592 kWh/yr
© 2012 Enlighted, Inc. All Rights Reserved.
14
Realtime Status of Each Fixture
© 2012 Enlighted, Inc. All Rights Reserved.
15
Profile Management
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16
Hallway Profile
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17
Reporting
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18
Energy Usage and Savings by Measure
Reduction Through
Task Tuning
Occupancy
Reduction
Daylight
Harvesting
Net
Consumption
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19
Carbon Reduction
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20
Energy Consumption Report
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21
Consumption by Space Type
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22
Fixture Outage Reporting
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23
Time of Use Pricing Model for ADR
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24
Commissioning
X
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25
Fixtures Discovered and Tested Pending Strobing and Placement
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26
Occupancy and Utilization
© 2012 Enlighted, Inc. All Rights Reserved.
27
Motion & Occupancy Data Analysis
© 2012 Enlighted, Inc. All Rights Reserved.
28
Space Utilization: Occupancy Maps
0-20%
Areas
Stations/Rms
Private Offices
11
Open Areas
6
Sm. Conference Rooms
6
Lg. Conference Rooms
3
Social
1
Utility
6
Total
Stations/Rms
SF
33
139 11,939
24%
20-40%
SF Stations/Rms
990
12
384
520
850
128
630
3,502
12
29%
9%
40-60%
SF Stations/Rms
1,080
10
8
1,080
18
9%
13%
60-80%
SF Stations/Rms
900
5
512
38
1
1
1,412
45
12%
32%
80-100%
SF Stations/Rms
600
2,432
30
225
384
1
3,641
31
30%
22%
SF
1,920
384
2,304
19%
Occupancy heat map by area highlights specific areas that are underutilized and areas that
heavily
©are
2012 Enlighted,
Inc. Allutilized.
Rights Reserved.
29
Optimizing HVAC with New Data
Pervasive temperature
sensors describe hot and
cold zones in the
building
Pervasive occupancy
sensors indicate setback zones for active
duty cycling
© 2012 Enlighted, Inc. All Rights Reserved.
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