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What is Smart Grid? A Utility Perspective

What is Smart Grid? A Utility Perspective. Progress Energy. Progress Energy Florida. 1.6 million customers 20,033 Square Miles 35 Counties 18,400 miles of overhead primary 12,800 miles of underground primary 277 T/D substations 1,248 feeders 1.035 million poles

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What is Smart Grid? A Utility Perspective

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  1. What is Smart Grid?A Utility Perspective

  2. Progress Energy Progress Energy Florida • 1.6 million customers • 20,033 Square Miles • 35 Counties • 18,400 miles of overhead primary • 12,800 miles of underground primary • 277 T/D substations • 1,248 feeders • 1.035 million poles • 216,000 overhead transformers • 124,300 padmounted transformers

  3. Typical Utility System

  4. How did we get started on Smart Grid? Energy Policy Act of 2005 • Requires the U.S. Department of Energy to study and report on national benefits of demand response and make a recommendation on achieving specific levels of benefits and encourages time-based pricing and other forms of demand response as a policy decision; • Requires all public electric utilities to offer net metering on request to their customers; Energy Independence and Security Act of 2007 • Smart grid - modernization of the electricity grid to improve reliability and efficiency.

  5. What is a car?

  6. Current Rate and Grid Status Flat Rate—no customer price signals • 1,400,000 residential customers • 50 residential customers on Time of Use (TOU) • 7,500 WMW & 6,000 SMW of demand Grid Status • Minimal grid automation • Beyond feeder level no positive outage notification • Limited fault identification • Manual control of distribution feeders • Reactive system maintenance • Mobile Meter Reading (MMR) provides only one way communication • Demand Response (DR) has limited monitoring and verification

  7. Benefits of a Smart Grid • Grid Efficiency • Grid Optimization • Distributed Generation • Technical & Non-Technical Losses • Resource Economy • Demand Management • Renewable Integration • Direct Load Control (DLC) • Reliability • Positive outage notification • Fault location, Isolation & Restoration (FLIR) • Substation Automation (Intelligent Buss Tie) • Condition-based Maintenance • Customer Involvement in Energy Management • Knowledge of usage • Incentives for using power at different times • More control

  8. Compare & Contrast Today vs. Future Today Future • Manual fault location & isolation • Partial var management • Independent voltage regulation • No optimization of power flow • Real time fault values & remote control of switches • Real time volt/var management • Simulation models & dynamic reconfiguration to minimize losses

  9. Restoration Process Today Subsation A Recloser Subsation B Feeder level outage, breaker locks out

  10. Restoration Process Today Subsation A Recloser Subsation B Crew manually locates fault and radios back to Dispatch for isolation process

  11. Restoration Process Today Subsation A Recloser Subsation B Crew manually opens switch, radios back to Dispatch to reclose breaker

  12. Fault Location, Isolation & Restoration (FLIR) Subsation A Recloser Subsation B Feeder level outage, breaker locks out

  13. Fault Location, Isolation & Restoration (FLIR) Subsation A Indicates fault Indicates no fault Recloser Subsation B

  14. Fault Location, Isolation & Restoration (FLIR) Subsation A Recloser Subsation B Signal to switch to open

  15. Fault Location, Isolation & Restoration (FLIR) Subsation A Breaker remotely closed Recloser Subsation B

  16. Fault Location, Isolation & Restoration (FLIR) Subsation A Recloser Subsation B Signal to switch to close Signal to switch to open

  17. Fault Location, Isolation & Restoration (FLIR) Fault Location Isolation and Restoration (FLIR) Subsation A Recloser Subsation B

  18. Traditional Var Management Off Peak Power Flow

  19. Real Time Var Management Off Peak Power Flow

  20. Traditional Var Management Peak Power Flow

  21. Real Time Var Management Peak Power Flow

  22. Load Shaping Customer Awareness (2-4% reduction) Optimal flat load profile

  23. DSM Smart Grid Vision Next Generation LM - Schematic EnergyWise System Signal Receiver Current Future DMS (DSE) Distribution Automation WAN (Cloud) MDMS Gateway (Edge) HAN Zigbee AMI Internet Integrated Bus CIS System

  24. Load Shaping Customer Awareness (2-4% reduction) Tiered Pricing (Shift Usage) Optimal flat load profile

  25. Plant Fuel Costs

  26. Price Signals (+-100 hrs)

  27. Carbon Rates

  28. Load Shaping Customer Awareness Tiered Pricing (Shift Usage) Optimal flat load profile Energy Storage (Shift Demand)

  29. Annual Load Curve

  30. Impact of Load Shaping on Generation

  31. Stimulus Package • $787 billion total package • $179 billion in engineering related areas • $20 billion Renewable Energy tax incentives • $30 billion in “Smart Grid” • $11 billion for “reliable, efficient electricity grid” • $ 6 billion for renewable energy projects • $ 4.5 billion in energy efficiency of federal buildings • $ 6.3 billion in local government grants for energy efficiency • $ 4 billion green-retrofitting of low-income housing • $ 2.5 billion for “energy efficiency and renewable energy research, development, demonstration and deployment activities to foster energy independence, reduce carbon emissions and cut utility bills.” • Source: The Florida Engineer, Spring 2009

  32. Challenges of Implementation • Cyber/Telecommunication Security • Partner with telecommunication companies? • System operations potentially exposed • No longer “security by obscurity” • IT Requirements/Systems Integration • Integration of legacy systems into new technology • Volume of data increasing 1000 fold • Complexity of field equipment & personnel training • Is the more complex field equipment worth it? • Current Lineman classification not exposed to telecommunication issues • Plug-in Hybrids • V2G (Vehicle to Grid): Benefit or liability?

  33. Smart Grid Brings Strategic Benefits Customer • Ability to offer value added service options • Controls energy management • Mass customization of customer experience • Flexible billing dates • Provides savings opportunity • Operational Efficiency • More effective use of base load generation (PHEV) • Reduced peaker fuel & O&M • Remote connect/disconnect • T&D benefits of lower peaks • Improved Theft detection Balanced Solution • Energy Efficiency • Alternative Energy • State-of-the-Art Plants • Regulatory • O&M Savings • Reduced carbon intensity • Reduced overall generation • GHG levels • Reliability improvements • Transition to 2-way energy mgmt. • Enables Measurement and • Verification • Revenue • Revenue protection • Provision for Distributed Generation • Pricing signal rates shift sales • that lower peaks • PHEV energy sales & management • Renewable, and energy storage options 32

  34. Questions?

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