EMS Architectures for the 21 st Century

1. EMS Architectures for the 21st Century Very Large Power Grid Operators (VLPGO) Working Group #2 Beijing, October 2005

2. Presentation outline • WG-2 Objectives for 2005 • Common Current State issues • Proposed characteristics of the Future State • Recommendations • Proposed 2006 Action Plan

3. WG-2 2005 Activities • Two face-to-face meetings: • Jan. 2005: Fort Worth (TX) • June 2005: Paris • The following individuals contributed to WG-2 activities in 2005 • Walter Johnson PhD (CAISO) • Giorgio Giannuzzi (GRTN)* • Jim Schinski (MISO) Co-Chair • Mike Gale (NGT) • Adel Mendonca Souza de Oliveira (ONS)* • Geraldo Pimentel (ONS)* • Alain Steven (PJM) Co-Chair • Tom O’Brien (PJM) Secretary • Thierry Lefebvre (RTE) • Tao Hongzhu (SGCC) • Xin Yaozhong (SGCC) • Masanobu Kaminaga (Tepco) * Part-time

4. WG-2 Objectives The objectives of the group are summarized as: • Develop the vision for the next generation of EMS/MMS architecture • Gain adoption of the vision by the industry • Facilitate its implementation as a de facto industry standard The work in 2005 focused on: • Identifying and prioritizing EMS/MMS issues common to VLPGOs, and developing an international consensus • Diagnosing present architecture problems • Developing a high level vision for EMS/MMS systems for 21st Century • Developing recommendations • Developing an actionable plan for 2006

5. Common General Issues The working group members were able to identify a number of common general issues with current EMS/MMS architectures: • Excessive dependence on limited number of viable EMS vendors • Inadequate protection against cyber attacks. • Lack of standards, usually limited to low level protocols. • Limited innovation, due to absence of standard requirements and small market size. Systems with a high Total Cost of Ownership

6. Common Technical Issues And similarly there was common agreement on key technical weaknesses • Lack of modularity and interoperability are obstacles to multi-vendor integration. • Inconsistent implementation of standard data models impacts interoperability. • System Design, driven by real-time performance requirements, prevents ease of expansion and reusability of software components • Multiplicity of User Interfaces among EMS/MMS functions and other control room systems limits operator effectiveness and increases error probability. Systems that are difficult to operate and maintain

7. Identified Root Causes Root causes for the identified problems can be traced to both Vendors and Utilities • Vendor products have evolved over time • High levels of investment required to make radical changes to architecture. • Limited market size • Constrains investment potential. • Lack of standardization in industry requirements • Divergence in business requirements • Lack of coordination between system operators • High levels of customization • High system performance requirements The business model needs to change

8. Future StateDriving Principles Any future state must support the following driving principles Standards based Performance 3rd Party Integration “Evergreen” Component Reusability Platform Independence Security built in Business Continuity

9. Future StateIT Reference Architecture The driving principles translate into the key requirements for an IT Reference Architecture: • Component based, Services Oriented Architecture for integration and reusability • Common Information Model and Market Extensions for data standards • Security layer • Built on industry standards • Enterprise Portal

10. Next Generation EMS/MMSArchitecture

11. Collaborative Business Models There is an opportunity for the International Working Group to leverage and expand on a limited number of initiatives, such as: • International technical cooperation agreements • Inter-regional coordination • Joint funding opportunities

12. Recommendations • Communicate the vision and rally industry support • Refine the vision and develop common requirements for the future EMS/MMS architecture • Perform Gap Analysis and identify highest priorities • Communicate development priorities to R&D organizations and coordinate initiatives (e.g. EPRI, Gridwise, EPRI China, Hsinghua University, ECC) • Identify and plan opportunities for joint development/funding

13. 2006 Action Plan • Communicate the vision and rally industry support • Joint meeting with IWG #3 – 1Q06 • Presentations at key conferences (e.g. Cigre, IEEE Summer Conference)– 2Q06 • Publish joint white paper – 4Q06 • Refine the vision and develop common requirements for the future EMS/MMS architecture • Develop an initial set of common requirements – 2Q06 • Establish Workshops with vendors and consultants to gain industry consensus and drive convergence – 2Q06 • Finalize common requirements to be included in future Requests For Proposals – 4Q06 • Perform Gap Analysis and identify highest priorities • IWG #2 Workshop – 3Q06 • Communicate development priorities to R&D organizations and coordinate initiatives (e.g. EPRI, Gridwise, EPRI China, Hsinghua University, ECC, CEPEL) • Regional Workshops with R&D organizations – 3Q06/4Q06 • Identify and plan opportunities for joint development/funding • IWG #2 Workshop – 3Q06/4Q06