Interconnection Practice, Policies, Procedures ComEd Illinois 9/17/2018

Challenge PROMOTE THE DEVELOPMENT OF A COMPETITIVE GENERATION MARKETPLACE where the market determines Generation amount, type and timing

To Implement a Practice, You Need a Customer Send a Market Signal !

ComEd Preferred Generation Sites

ComEd’s Attachment K Procedures for Interconnecting New Generating Facilities... Initial Request Posted on OASIS 30 Days to Send 15 Days to Execute L.O.I. Interconnection Study and Diagram 45 Days Milestones Site Acquisition Permits Regulatory Certification Credit Support Decision Period 30 Days Right-of First Refusal 90 Days Execution Period 90 Days

Major Considerations of the Wires Company System Reliability System Stability Financial Responsibility

Major Considerations of the Merchant Power Company System Reliability System Capability Available Transmission Capacity Project Feasibility

Blue Book Table of Contents Chapter 1 - Purpose of the Document and Customers’ Responsibilities Chapter 2 - General Information on Rates, Tariffs, Studies, Protection, and other ComEd Requirements Chapter 3 - QF/ Non Merchant Plant Process Chapter 4 - IPP/ Merchant Plant Process Chapter 5 - Typical Interconnection Configurations

Blue Book Table of Contents (Appendices) Contact List Generator Data Sheet Metering Requirements Telemetry Standards Relay Functional Requirements/ Specifications Substation Design Standards Transmission Standards Pre- Parallel Inspection Standards Interconnection Agreement Microwave Communication Equipment

Installation Tapped into 138kV Line G

Typical 345 kV Connection New Substation G CE IPP Substation A Substation B CE New Substation IPP G

Extension of an Existing Substation ComEd New Circuit Breaker IPP

Lessons Learned Stay with your original design Once a design begins: 1 Good Engineer is worth 3 Lawyers Equipment Lead Time can be a Killer Start up/Electrical Relay Testing, Expect Problems Metering: Know Your Business Model Interconnection Delivery

Link to the IPP Web Page http://www.comedtransmission.com/

Is the Policy Working ? Wall Street Journal Article Dated May 11, 2000 In the U.S. - 162,000 MW’s on the drawing board ComEd Interconnection Queue as of May 11, 2000 39 Requests 18,724 MW’s As of June, 2000 1,836 MW’s of New IPP’s connected to the ComEd System