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Seattle City LightStreet Lighting Program
March 2, 2011
Presented By: Edward Smalley, SCL and Ahmed Darrat, SDOTStreet Lighting Program – New Technology 2011-03-02
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Seattle City Council
Energy & Technology Committee Meeting
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AGENDAProgram Update
– LED Streetlight Conversion
– Next Steps
New Technology
– Remote Monitoring and Outage Reporting
– Lumen Maintenance Control
– Adaptive Lighting Controls
Intelligent Transportation System Interaction
Seattle City Council
Energy & Technology Committee Meeting
3
LED SL Program Goals
• Reduce energy use by 40% - Actual 48%+!
• Lower maintenance costs (only cleaning during
fixture life)
• Improve Customer Service (no lamp change over
fixture life - 12+ years)
• Improve operation on Bridges
Seattle City Council
Energy & Technology Committee Meeting
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41,000 Total Residential LED
Streetlights to be Converted –
5000 Completed in 2010
Seattle City Council
Energy & Technology Committee Meeting
Arterial Cobra Head Lighting
31,447 (37%)
Residential Cobra Head Lighting40,783 (49%)
Pedestrian and Special Lighting11,705 (14%)
Pilot Evaluations in 2011
SCL Lighting Types by Use84,000 Total Fixtures
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Seattle City Council
Energy & Technology Committee Meeting
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Arterial Cobra Heads 52,827,180
kWh (59%)Residential Cobra Head 22,693,382
kWh (25%)
Pedestrian and Special 14,334,629
kWh (16%)
After 6000 LED Streetlights installed Energy Usage decreased 90,000 kWh
Current SL System Energy Use by Category
Seattle City Council
Energy & Technology Committee Meeting
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LED SL Program SavingsResidential Streets
Residentail LED Installations
Units
Converted
Savings
Per LED
Monthly
Savings
Annual Savings
at end of period
2010 Installations 5000 4.90$ 24,500.00$ 294,000.00$
All Residential Streets Installed: 41000 200,900.00$ 2,410,800.00$
Annual System Management & Cleaning Costs (520,000.00)$
Total Projected Savings at end of 2014: 1,890,800.00$
Seattle City Council
Energy & Technology Committee Meeting
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2010 LED Expenditures
DESCRIPTION COSTS
Labor $665,000
Materials – City Funded $800,000
Materials – ARRA Funded $1,000,000
Total Project Cost $2,465,000
Seattle City Council
Energy & Technology Committee Meeting
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Investment and Savings on Residential System - Updated
Total Residential Capital Costs = $20,500,000
$0
$6m$6m$6m
$2.5m
$-
$1,000,000.00
$2,000,000.00
$3,000,000.00
$4,000,000.00
$5,000,000.00
$6,000,000.00
$7,000,000.00
2010 2011 2012 2013 2014
Year
Ca
pit
al $
Project Capital
Costs
Seattle City Council
Energy & Technology Committee Meeting
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LED Next Steps• In 2011 – Residential LED Conversion will take
place north of N 65th to N 205th St
• Arterial Pilots
• West Seattle Bridge – I-5 to 35th Ave SW
(SCL|SDOT|US DOE Partnership)
• S Henderson St – MLK Jr Way S to Seward
Park Ave S
• Arterial Fixture Selection – Fall 2011
• Arterial Conversion Target year – 201X
Seattle City Council
Energy & Technology Committee Meeting
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New Technology• Remote Monitoring
– Ability to get real time/ metered power usage for each light
– Immediate notification of streetlight malfunctioning
– Quicker response time for repair
• Lumen Maintenance - Light loss management
• Adaptive Controls– Ability to dim or brighten streetlights
to meet vehicular and pedestrian demands
– Set scenes for events and time of day
– 20%+ Additional energy savings
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Adaptive Controls Next Steps
• 2011 - Consultant System Evaluation
• Pilots on Arterial and Residential Streets
• Economic Evaluation
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Variable Light Output Capabilities
• Unique Controls for different users
– SDOT
– SCL
– SPD and SFD
Seattle City Council
Energy & Technology Committee Meeting
65% 100%70%
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• SDOT’s Intelligent Transportation System
ITS-Controls Integration
Seattle City Council
Energy & Technology Committee Meeting
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Real-Time Data Output
• Collision Reports
• Outage Verifications
Seattle City Council
Energy & Technology Committee Meeting
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Challenges
• Policies
• Security
• Hardware and Software
Seattle City Council
Energy & Technology Committee Meeting
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Seattle City LightStreet Lighting Program
New Technology
March 2, 2011
Presented By: Edward Smalley, LC
Seattle City Light, Streetlight Engineering Manager
Ahmed Darrat, Seattle Department of Transportation, Associate Civil Engineer
Street Lighting Program – New Technology 2011-03/02
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Seattle City Council
Energy & Technology Committee Meeting
Questions?