Smart Grid Smart Grid
Our Mission Our 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 Definition The Smart Grid Definition Smart 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) Motivating - Enable Active Participation by 1. Customers Accommodating - Accommodate All 2. Generation and Storage Options Opportunistic - Enable New Products, 3. Services, and Markets 4. Quality-focused - Provide Power Quality for the Digital Economy Efficient - Optimize Asset Utilization and 5. Operate Efficiently 6. Intelligent - Anticipate and Respond to System Disturbances Secure - Operate Resiliently Against Attacks 7. and Natural Disasters
Seattle City Light Smart Grid Vision Seattle City Light Smart Grid Vision Mobile Workforce Management System Geographic Information System Customer Information System IT Systems Energy Management System Distribution Management System Work and Asset Management System Meter Data Management System Outage Management System Data Integration Smart Grid Systems Distributed Demand Generation Response Advanced Home Energy Energy Delivery Smart Substation Distribution Management Optimization Energy Electric Automation Systems Storage Vehicles Generation Automation Advanced Meter Infrastructure Substation Modernization Distribution Automation AMI Fiber Optic Backbone Field Smart Grid Communications Electrical Power Systems Sensors Switches Capacitors Sensors Switches Capacitors Plug-In Electric Vehicle Distribution System Customer End Systems Generation Transmission / Substations
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 Breaker Old Transformer New and Old Relays New Transformer
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
O ur Current Metering Infrastructure 408,000 meters with an average age of 30 years Meter Age 90000 80000 70000 60000 50000 40000 Meters by Age in Years 30000 20000 10000 0 < 10 10 to 20 to 30 to 40 to 50 to 60 > 20 30 40 50 60
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 meters Adds a two-way communication system with immediate benefits Provides new power management capabilities
AMI Goals Improve Customer Experience Operate a safe and environmentally responsible metering system Provide “Real Time” usage information Enhance Outage Management System Support future Smart Grid capabilities
AMI Benefits Increased customer satisfaction Faster outage response Flexible billing/rate options Real time information to support conservation efforts Reduced carbon foot print Reduced labor and operational costs
AMI O ptions • 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 A MI Project Costs Meter Replacement ($86.4M) Other AMI ($14.6M)
AMI – Better Return O n Investment Initial higher costs Long term higher benefits AMI vs Meter Replacement 10,000,000 5,000,000 0 Net Benefit/Cost 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 (5,000,000) AMI Project (10,000,000) Meter Replacement (15,000,000) (20,000,000) (25,000,000) (30,000,000) Project Year
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 other technology projects
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