Shari Ishikawa from HECO describes what the term Smart Grid means, and the Smart Grid-related projects HECO is working on. Slides from the REIS seminar series at the University of Hawaii at Manoa on 2009-10-15.

1. Smart Grid Overview Shari Ishikawa UH REIS Seminar Series October 15, 2009

4. Electric System Overview 1. Generation 2. Transmission 138,000V 3. Subtransmission 46,000V Secondary 120/240V 4. Distribution 25kV – 4kV One Way Flow

5. Smart Grid Build Out Example DMS Remote Switches OMS GIS Plant Control Systems EMS SCADA Relays CIS AMI MDMS Smart Home

9. Smart Grid Technologies Integration – biggest gap in today’s science & technology development Integration Science & Technology

12. Smart Grid Key Technology Areas Next generation FACTS/PQ devices Advanced distributed generation and energy storage PHEV - V2G mode Fault current limiters Superconducting transmission cable & rotating machines Micro-grids Advanced switches and conductors

13. Smart Grid Key Technology Areas Data reduction Data to information to action Visualization Speed of comprehension System operator training

14. Smart Grid Key Technology Areas Smart meters Smart sensors Demand Response DG dispatch Distribution automation Micro-grids Markets Work force management Mobile premises (PHEV’s)

15. Smart Grid Examples Transmission System - Synchrophasors

16. Antenna Array – Ability to locate partial discharge in the substation Waveform 1 Waveform 2

17. Backscatter Sensors for low cost monitoring and problem identification

18. Standard Circuit Protection Aqua 12KV Blue 12KV RCS RCS Substation RCS Blue 12KV 1. Fault between Circuit Breaker and Midpoint RCS (time = 0s) 2. Circuit Breaker Opens (time = <1s) 3. Circuit Breaker Tests circuit; test fails (time = 15s) Process 4. Midpoint Switch Opens (t = 30s) 8. Fault is cleared/fixed 9. CB is closed to restore power to front half of circuit 10. Circuit is restored to normal Circuit Breaker 5. Circuit Breaker tests circuit again; test fails; CB locks out (t = 55s) 6. Tie RCS is remotely closed to pick up back half of circuit. 7. Circuit is patrolled by Troubleman Legend Copper Connection Single-mode fiber-optic Multi-mode fiber-optic Distribution Circuit Substation Fence RCS N LD

19. Avanti 12KV Circuit Protection Northpark 12KV Sweetwater 12KV RCS 1088 RCI 1449 RCI 1453 Shandin Substation RCI 1450 RCS 1365 Sweetwater 12KV 1. Fault between RCI 1449 and RCI 1453 (time = 0s) 2. Logic Processor Instructs RCI 1449 to Trip (time = <0.1s) 3. Logic Processor Instructs RCI 1453 to Isolate fault (time = .5s) Process 4. Tie Switch to Sweetwater closes to restore back half of circuit (t = 1 min) 5. Fault is cleared/fixed 6. RCI 1449 is closed to restore power to front half of circuit 7. Avanti is restored to normal Circuit Breaker Logic Processor Legend Copper Connection Single-mode fiber-optic Multi-mode fiber-optic Distribution Circuit Substation Fence RCS 0769 N LD RAR 0989

20. Scenario Analysis HECO Baseline Information HECO Model Development (GE MAPS/PSLF) Wind Forecasting NREL Oahu Transmission Studies Stead State Load Flow/ Transient Stability/ Short Circuit Steam Generator Improvements Load Control Standby/Quick Start Generation EMS/AGC Capability Analysis (KEMA) Oahu Routing Study and Engineering Design Submarine Cable Architecture and Specifications NREL Wind Resource Modeling NREL PPA Negotiations/ Interconnection Requirements Study Wind Capacity Calculation Steam Generator Projects EMS Upgrade Projects Load Control Projects Future Generating Resource Plan Oahu Transmission Projects Submarine Cable Procurement and Permitting (HECO/DBEDT) Integration of Variable Generation Follow-on Implementation

21. FOA 36 – Hawaii DREEM Demonstration

22. FOA 36 – Hawaii DREEM Demonstration (cont)

23. HECO Customer Microgrid EMS HECO EMS Advanced Metering Infrastructure (AMI) HECO Communication Microgrid Concepts Solar Wind Battery Storage Bio-Fueled Generator Smart Home Smart Building HECO Transformer

25. Example of HECO High Level Road Map Work in Progress For illustrative purposes only