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Smart Grid - Seattle › Documents › Departments...The Smart Grid Definition Smart Grid is a...
Transcript of Smart Grid - Seattle › Documents › Departments...The Smart Grid Definition Smart Grid is a...
Smart GridSmart Grid
Our MissionOur Mission
Seattle City Light is dedicated to exceeding our customers’ expectations in producing and delivering environmentally responsible, safe, low cost and reliable power.
The Smart Grid DefinitionThe Smart Grid DefinitionSmart Grid is a portfolio of systems and technologies designed to provide operational, financial and environmental benefits by integrating modern energy, communications and information technologies with electrical generation, power delivery and consumer electrical systems.
Smart Grid does not emerge from a single rollout of a revolutionary technology, but from strategic planning and initiatives all aimed at a long-term vision supported by a technology and customer focused organization.
Smart Grid Functions (DOE)Smart Grid Functions (DOE)1. Motivating - Enable Active Participation by
Customers 2. Accommodating - Accommodate All
Generation and Storage Options 3. Opportunistic - Enable New Products,
Services, and Markets 4. Quality-focused - Provide Power Quality for
the Digital Economy 5. Efficient - Optimize Asset Utilization and
Operate Efficiently 6. Intelligent - Anticipate and Respond to System
Disturbances 7. Secure - Operate Resiliently Against Attacks
and Natural Disasters
Generation Transmission / Substations Distribution System Customer End Systems
Seattle City Light Smart Grid VisionSeattle City Light Smart Grid Vision
Sensors CapacitorsSwitches
Sensors CapacitorsSwitches
Substation Modernization Distribution Automation Advanced Meter Infrastructure AMI
Smart Substation Energy Delivery Optimization
Advanced Distribution Automation
Distributed Generation
Outage Management System
Work and Asset Management SystemMeter Data Management System
Energy Management System
Distribution Management System
Customer Information System
Energy Storage
Home Energy Management
Systems Electric Vehicles
Demand Response
IT S
yste
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Fiber Optic Backbone Field Smart Grid Communications
Smar
t Grid
Sys
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sEl
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Pow
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yste
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Data Integration
Mobile Workforce Management System
Generation Automation
Plug-In Electric Vehicle
Geographic Information System
Why Automation?• Improve System Reliability
• Maximum Use of Assets
• Improve Efficiency of Operations
• Provide a Safer Operation Environment
• Visibility
Substation Modernization
Standard practice is to implement automation for new major substations
Substation Modernization (cont.)
Inventory:
• ~ 422 Breakers
• ~ 54 Transformers
• ~ 5000 Relays
Old Transformer
Breaker
New Transformer
New and Old Relays
Distribution Automation Plan
• Monitor Equipment– Line switches– Transformers– Line Loading– etc
• Automate the most critical circuits for enhance reliability
• Automate equipment for critical loads
Benefits• Reduces time to troubleshoot and isolate problem
• Getting real-time information to make quicker decisions
• Remote Control for faster restoration
• Avoid the system collapse or cascade
• Remote switching versus manual switching
• Optimize asset utilization and efficiency
Substation Modernization is a foundation to Smart Grid
Our Current Metering Infrastructure408,000 meters with an average age of 30 years
0100002000030000400005000060000700008000090000
< 10 10 to20
20 to30
30 to40
40 to50
50 to60
60 >
Meter Age
Meters by Age in Years
Why We Need New Meters• The current electro-mechanical
meters are obsolete and out of production
• As meters age, we lose revenue by under-measuring usage
• On site meter reading has high labor costs
• The old meters are not “Smart Grid capable”
The Solution: Advanced Metering Infrastructure (AMI)
Replaces 408,000 aging meters with new digital metersAdds a two-way communication
system with immediate benefitsProvides new powermanagement capabilities
AMI Goals Improve Customer ExperienceOperate a safe and environmentally
responsible metering systemProvide “Real Time” usage informationEnhance Outage Management SystemSupport future Smart Grid
capabilities
AMI BenefitsIncreased customer satisfactionFaster outage responseFlexible billing/rate optionsReal time information to support
conservation effortsReduced carbon foot printReduced labor and
operational costs
AMI Options• Ideal: Full Deployment commencing
in 2011 over a 5 year period.• Delayed Deployment with a small
ramp up in 2011-2012 with full implementation complete within 7 years.
• Accelerated Meter Replacement Only without communication system for AMI
• Status Quo: Replace obsolete meters with digital meters at current level of capital spending
AMI – Worth the Cost•We will have to replace all of our meters•For an additional 15%, we gain the benefits of AMI•The project has long term benefits
Overall AMI Project Costs
Meter Replacement ($86.4M)Other AMI ($14.6M)
AMI – Better Return On Investment
AMI vs Meter Replacement
(30,000,000)
(25,000,000)
(20,000,000)
(15,000,000)
(10,000,000)
(5,000,000)
0
5,000,000
10,000,000
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
Project Year
Net
Ben
efit/
Cos
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AMI ProjectMeter Replacement
Initial higher costs
Long term higher benefits
AMI Project Plan
Two year ramp up (2011-2012) for pre- project preparation
Five year project implementation (2013 – 2017)
Use in-house labor as much as possible Integrate with othertechnology projects