KEPCO s Smart Grid August 2011 Smart Grid Office

KEPCO’s Smart Grid August, 2011 Smart Grid Office 1 / 28

1 Backgrounds 2 Jeju Smart Grid Test-bed 3 AMI & DAS Solution 2 / 28

1. Backgrounds 3 / 28

138 KEPCO’s Performance 78 17 16 System Average Interruption Duration Index Korea Japan U. S. A U. K (min) 308 ’ 03 Direct Hot-line ’ 92 . 300 Distribution Information System 233 200 ’ 95 Distributed Automation System ’ 89 Bypass Cable ’ 06 Maintenance Technology without Power Interruption 100 40 20. 5 85 90 00 95 4 / 28 18. 6 05 15. 47 10

7% KEPCO’s Performance 8% 5% 4% Transmission & Distribution Loss Korea Japan U. S. A U. K (%) 30 29. 4 20 ’ 85 ~ 89 ’ 62 22. 9 k. V Voltage Step-up Project 220 V Voltage Step-Up initiated Low loss Transformer introduced Power Loss Prevention Council established ’ 01 Low loss facilities : G 6, Amorphous core Transformer and ACSR/AWOC 11. 31 10 6. 69 ’ 76 ~ 79 Theft Prevention Program Voltage Level simplification (345 k. V, 154/22. 9 k. V) 70 80 90 5 / 28 4. 3 00 3. 99% 10

Green Growth & Smart Grid Leading Country Korea New Vision Low Carbon, Green Growth Major Economic Forum designated 10 low carbon and climate friendly technologies including Smart Grid : Apr 2009 : Aug 2008 G 8 Summit selected Korea & Italy as a Smart Grid Leading Country : Jul 2009 Korea & Italy created and released Smart Grid Technology Action Plan in MEF : Oct 2009 6 / 28

Why do we need Smart Grid? Future Present Storage Devices Distributed Energy Resources Smart Home Smart Building Smart Appliance Smart In-home Display Heating & Cooling EVs CO 2 Reduction to Prevent Global Warming • Centralized Generation (Massive use of fossil fuel) (Renewable) • One way flow of Electric Power and Information Distributed Generation Real time Two-way flow Peak Shaving from DR, V 2 G, Battery etc. • Supplier-oriented network Customer participation 7 / 28

2. Jeju Smart Grid Test-bed 8 / 28

Outline of Jeju Test-bed Target Business model development and export Period Dec, 2009 ∼ May, 2013 (42 months) Budget Scale About 240 million dollars (70 million from Gov. ) 2 S/S, 4 D/L, 3, 000 customers, 168 companies Consortium Info China Jeju Korea Japan Leader / No of Participants / Budget Smart Power Grid only 32. 8 M$ Smart Customer 38 12. 6 M$ 28 30 M$ 14 34. 8 M$ Smart Transportation 22 19 M$ 13 17. 5 M$ 7 10. 8 M$ Smart Renewable 16 19. 5 M$ 6 11. 7 M$ 10 10. 8 M$ Smart Elec. Service With KPX 18. 1 M$ KEPCO total : 102 M$ 9 / 28 15 22. 4 M$

Power Network of Test-bed Smart Renewable SG Information Center Kimnyung D/L Smart Elec. Service Manjang D/L Jochun S/S Intelligent Distribution Smart Customer Songdang D/L Jongdal D/L Smart Transportation Smart Power Grid Intelligent Transmission Seongsan S/S Digital Substation 154 k. V J-S T/L 10 / 28

Smart Grid Concept An intelligent power network which is providing high quality services with maximized energy efficiency using power electronics, information and communication technologies Smart Customer Smart Power Grid Intelligent monitoring, fault prediction and fast restoration from upgraded T&D grid Smart Transportation 5 Key Components of Smart Grid 전력피크, CO 2 감축 신재생에너지 수용 전력손실, 정전시간 감축 Smart Renewable Spread of EV and its infrastructure Stabilization of output and compensation of quality 11 / 28 Efficient energy use with two-way communication such as real time pricing Smart Electric Service New tariff, test data verification and power exchange

Smart Power Grid(1) Smart Power Grid Target Testing Facilities Increase transmission capacity with real-time calculation using various sensors and reduce transmission line fault Monitoring sensors of solar radiation, wind direction/ velocity, ambient temperature, current, line temperature, transmission line dip Current, Dip, Line temperature Solar radiation Wind direction / Velocity CCTV Data collection unit Ambient Temperature 12 / 28 SPG operation center

Smart Power Grid(2) Intelligent Distribution System Target Testing Facilities Bi-directional fault detection and optimized load balancing due to distributed generation Intelligent R/C, S/W, Lightning & Arrester Monitoring unit , DG interface device Intelligent Dist. system Intelligent Recloser Lightning/Arrester Monitoring AVR Intelligent S/W S/S CB SCADA Distributed generation Interface device 13 / 28 Transformer Monitoring

Smart Customer fo noitcurtsno. C empoleved dna tegra. T tcurtsarfn. I IMA ecnailppa tram. S gnitse. T seitilica. F HAN NAN WAN ren. E elbawene. R VPN agent SME negilletn. I W/S Data Collector DHI Building CLP eebgi. Z ro DCU Data Collector tnegilletn. I ygren. E secnailpp. A egarots VPN agent VE regrahc 14 / 28

Smart Transportation Target Testing Facilities Development of various EV charging infra, payment & operation system Quick charger, Charging stand, Meters, CIM system, Operation system 전력공급시스템 Power Grid Charging Infra CIM 시스템 CIM System Charging Station Charging Stand Smart Meter Power Supply & Network Protection Customer Management & Billing 전기자동차 EVs 인프라운영시스템 Operation Sys Monitoring & Controlling charging current • DC 450 V • 50 k. W • 20 min • AC 220 V • 7. 7 k. W • 6 Hours Remote Control Power Conversion, Metering & Vehicle recognition * CIM : Customer Information Management 15 / 28

Smart Renewable Target Testing Facilities Stabilization of output and compensation of power quality DG management system, EMS, STATCOM, PCS, BESS Active power Reactive power Grid Renewable sources STATCOM PQ compensation Transformer PCS TOC EMS SR operation center Power conditioning system BESS Energy storage system 16 / 28 Before After

Smart Electric Service Total Operation Center (TOC) Target Testing Facilities Tariff design of Real-time pricing, Power exchange between consortiums, data collection & verification Smart Board/ Smart Service Portal EV, Renewable 17 / 28 Power Network Test sites & Customers DR, CO 2 emission

3. AMI & DAS Solution 18 / 28

Ι. Advanced Metering Infra. Configuration of AMI 19 / 28

Ι. Advanced Metering Infra. Characteristics § Collect various automated metering data with high reliability § Provide various information service by the statistical data - Metering Information, Load Characteristics, Power Consumption § Monitor real-time power quality (Voltage, Current, VAR, outage) - Rapid and exact system operation by immediate inquiry - Various metering data inquiry (current/monthly/year, status) - Efficient demand side management with technical analysis § Confirm directly the metering data at house using Web easily § Offer variously customized report print 20 / 28

Ι. Advanced Metering Infra. Device of AMI • • Smart Meter support : TOU, RTP, CPP, Energy consumption Two-way communication with smart devices in household Power failure(Break down), Recovery and PQM information Remote load control and Anti-pilferage function • High performance of 200 houses metering • Voltage & Current measurement of 3 phase transformer • Easy maintenance scope • Control & setup based on the web • • Automatic metering data collection, database storage Customer metering data & state information inquiry Particular metering function about specific or total house Report storage & print function of the various form 21 / 28

Ι. Advanced Metering Infra. KEY Function for Loss Reduction Contract Violation Detect Program Anti-Pilferage Function § Detect pilferage by comparing each § Detect contract violation by comparing Tr. Load data with clients’ consumptions) client’s recent yearly consumption with previous three years § Automatic warning for meter § Built in Remote control function tampering (from operation sys to smart meter) (via Beeping and SMS) 22 / 28

Ⅱ. Distribution Automation System Configuration of DAS Overhead SW Substation Wireless Comm MV Customer LV Customer Optical Line RMU DCC 23 / 28

Ⅱ. Distribution Automation System Characteristic of DAS • Utility developed DAS solution by itself – User-friendly HMI – Easy to upgrade with field engineers • Superior Scalability using middleware – Easy to interface with other systems (AMI, CIS, etc. ) – Convenient application development • Automatically generate real-time single line diagram • Wide-Area Distribution IT Center – Control 3~9 DAS in one DCC – All required application integration such as CIS, DIS, AMI, etc. ※ CIS: Customer Information System ※ DIS: Distribution Information System base on GIS 24 / 28

Ⅱ. Distribution Automation System Hard Ware of DAS Monitor Raid Cluster Server 1 Server 2 History Server · · · FEP 1 COT · · Time Synchronizer · · FEP 2 HUB · · MCU T/ S · Gateway HMI 1 HMI 2 Communication Network OPT, Lease line, TRS, CDMA, GSM Overhead S/W U/G CB 25 / 28 RMU Recloser

Ⅱ. Distribution Automation System Distribution Control Center (DCC) n n DLP Cube 50 inch × 21 Control Server UPS, Air conditioner Intelligent Briefing System with Miracle screen n Call Center connection n Screen Configuration Ä Ä Ä 26 / 28 Network Diagram Control Panel DIS / CIS CCTV AMI / DTMS

Ⅱ. Distribution Automation System Fault Restoration Process ▪ Fault sensing & decision through FI (Fault Indicator) ▪ Disconnect both ends of fault section ▪ Transfer load (CB~R) to another adjacent feeder ▪ Hurry to the field for repairing / Restore to original system 27 / 28

Global Top 5 Energy & Engineering Company 감사합니다 -16/16 - Thank you ! - 28/45 -