The document discusses the vision for a smart grid and the need to develop a holistic power supply and delivery chain. It identifies several key capabilities that require further research, including hierarchical integration of the entire supply and delivery chain, optimal end-to-end dispatch under uncertainties, dynamic models of generators and loads, online alarm diagnostics, prevention of cascading outages through safety nets, and fast system restoration after blackouts. The document advocates using new technologies and approaches to improve situational awareness, reliability, and coordination across the entire electric grid.

1. Smart Grid Vision: Vision for a Holistic Power Supply and Delivery Chain Stephen Lee Senior Technical Executive Power Delivery & Utilization November 2008

2. Smart Grid Two Way Communications….Sensors…….Intelligence Smart Grid Need an Objective Assessment of the Potential for Smart Transmission and the Path to Achieve it Hype

3. Smart Grid Two Way Communications….Sensors…….Intelligence Information & Communication Enabled Power Infrastructure Distribution Consumer Transmission Substation Markets Transmission Applications Maximize Asset Utilization Real Time State Estimation & Measurement Automate Asset Condition Assessment Enable Wide Area Monitoring & Control Automate Fault Location Integrate Demand Responsive Resources

4. Current State – System Operations 2-4 Sec scan rates Limited to info from lines and transformers at substations MW, MVAR, KV breaker status Limited Grid Visibility

5. Smart Transmission State – System Operations Higher speed scan rates Allows more frequent analysis of system state Enhanced Grid Visibility 750 +282j 250 +84j 100 +62j 20 + 8j 276 + 120j 130 + 8j 300 + 100j 750 + 262j 440 + 200j 120 + 11j 350 + 150j 227 + 420j 704 + 308j 2 3 4 5 7 6 1 8 9 10 11 12 13 14 15 16 17 176 +88j

6. Grid Enabled Technology Pathway Renewables Integration and T&D Efficiency Improvement CAES: compressed air energy storage FACTS: flexible AC transmission system HVDC: high voltage direct current RPS: renewable portfolio standards

7. End-to-End Power Delivery Chain Operation & Planning Data Communication Wide Area Control Sensors Monitoring, Modeling, Analysis, Coordination & Control End-uses & DR Distribution System Transmission System Energy Storage Fuel Supply System Fuel Source/Storage Power Plants Renewable Plants Controllers ZIP M Dynamic Load Models Dynamic Power Plant Models

9. Layers For A Holistic Power Supply And Delivery Chain

10. Wide Area Coordination at the Control Center

11. Hierarchical Monitoring And Analysis

14. Potential Role of the Virtual Service Aggregator

19. EPRI’s Grid Operations and Planning Research Understanding, Predicting, and Preventing Cascaded Outages (Black Out) Situational Awareness Reliability Assessment Modeling & Standardization Online Stability & Control System Restoration System Studies

22. Thank you