February 9, 2007 Mr. Raymond Palmieri Vice President and Director, Compliance ReliabilityFirst Corporation 220 Market Ave South Suite 501 Canton, OH 44702 Dear Mr. Palmieri, PJM, in its role as a registered Balancing Authority, Planning Authority, Reliability Coordinator, Transmission Operator and Transmission Planner, is responsible to submit data to NERC, RFC and SERC under Modeling Standards MOD-017 through MOD-021. Attachment 1 lists the requirements contained in these standards. The data provided by PJM under these standards includes the load for all PJM member companies that serve load including distribution companies, power marketers and retail energy suppliers. PJM understands that these entities will not be required to report duplicate information to RFC under these standards. Attached is a list of PJM Member companies registered with ReliabilityFirst as Load Serving Entities, Transmission Planners, Planning Authorities and Resource Planners whose requirements are covered by the PJM data submittal. Please contact me at (610)666-4597 or Mark Kuras at (610)666-8924 if you have any questions. Sincerely, Alicia E. Daugherty Manager, NERC and Regional Coordination Cc: 401019 Gary Campbell, RFC Paul Kure, RFC Jim Uhrin, RFC Tom Bowe, PJM Mark Kuras, PJM Susan McGill, PJM Page 1 of 4 Attachment 1 – Requirements of MOD-017 through MOD-021 MOD-017-0 Aggregated Actual and Forecast Demands and Net Energy for Load R1. The Load-Serving Entity, Planning Authority and Resource Planner shall each provide the following information annually on an aggregated Regional, subregional, Power Pool, individual system, or Load-Serving Entity basis to NERC, the Regional Reliability Organizations, and any other entities specified by the documentation in Standard MOD-016-0_R1. R1.1. Integrated hourly demands in megawatts (MW) for the prior year. R1.2. Monthly and annual peak hour actual demands in MW and Net Energy for Load in gigawatthours (GWh) for the prior year. R1.3. Monthly peak hour forecast demands in MW and Net Energy for Load in GWh for the next two years. R1.4. Annual Peak hour forecast demands (summer and winter) in MW and annual Net Energy for load in GWh for at least five years and up to ten years into the future, as requested. MOD-018-0 Reports of Actual and Forecast Demand Data R1. The Load-Serving Entity, Planning Authority, Transmission Planner and Resource Planner’s report of actual and forecast demand data (reported on either an aggregated or dispersed basis) shall: R1.1. Indicate whether the demand data of nonmember entities within an area or Regional Reliability Organization are included, and R1.2. Address assumptions, methods, and the manner in which uncertainties are treated in the forecasts of aggregated peak demands and Net Energy for Load. R1.3. Items (MOD-018-0_R1.1) and (MOD-018-0_R1.2) shall be addressed as described in the reporting procedures developed for Standard MOD-016-0_R1. R2. The Load-Serving Entity, Planning Authority, Transmission Planner and Resource Planner shall each report data associated with Reliability Standard MOD-018-0_R1 to NERC, the Regional Reliability Organization, Load-Serving Entity, Planning Authority, and Resource Planner on request (within 30 calendar days). MOD-019-0 Forecasts of Interruptible Demands and DCLM Data R1. The Load-Serving Entity, Planning Authority, Transmission Planner, and Resource Planner shall each provide annually its forecasts of interruptible demands and Direct Control Load Management (DCLM) data for at least five years and up to ten years into the future, as requested, for summer and winter peak system conditions to NERC, the Regional Reliability Organizations, and other entities (Load-Serving Entities, Planning Authorities, and Resource Planners) as specified by the documentation in Reliability Standard MOD-016-0_R1. MOD-020-0 Providing Interruptible Demands and DCLM Data R1. The Load-Serving Entity, Transmission Planner, and Resource Planner shall each make known its amount of interruptible demands and Direct Control Load Management (DCLM) to Transmission Operators, Balancing Authorities, and Reliability Coordinators on request within 30 calendar days. MOD-021-0 Accounting Methodology for Effects of Controllable DSM in Forecasts R1. The Load-Serving Entity Transmission Planner and Resource Planner’s forecasts shall each clearly document how the Demand and energy effects of DSM programs (such as conservation, time-of-use rates, interruptible Demands, and Direct Control Load Management) are addressed. R2. The Load-Serving Entity, Transmission Planner and Resource Planner shall each include information detailing how Demand-Side Management measures are addressed in the forecasts of its Peak Demand and annual Net Energy for Load in the data reporting procedures of Standard MOD-016-0_R1. R3. The Load-Serving Entity, Transmission Planner and Resource Planner shall each make documentation on the treatment of its DSM programs available to NERC on request (within 30 calendar days). 401019 Page 2 of 4 Attachment 2 – PJM Member Companies Registered as LSE/PA/RP/TP Member Name AEP Agent for Appalachian Power Company, Columbus Southern Power Company, Indiana Michigan Power, Kentucky Power, Kingsport Power, Ohio Power, Wheeling Power Allegheny Electric Cooperative, Inc. Allegheny Power American Municipal Power-Ohio, Inc. American PowerNet Management, L.P. Atlantic City Electric Company Baltimore Gas and Electric Company Blue Ridge Power Agency, Inc. Blue Star Energy Services, Inc. BOC Energy Services, Inc. Borough of Chambersburg Borough of Ephrata BP Energy Company Buckeye Power, Inc. City of Dowagiac CMS Energy Resource Management Company Commonwealth Edison Company ConEdison Energy, Inc. Consolidated Edison Solutions, Inc. Constellation Energy Commodities Group, Inc. Constellation NewEnergy, Inc. Consumers Energy Company Dayton Power & Light Company Delmarva Power & Light Company Detroit Edison Company Direct Energy Services, LLC Dominion Retail, Inc. DTE Energy Trading, Inc. Duquesne Light Company Duquesne Light Energy, LLC Eagle Energy Partners I, L.P. Easton Utilities Commission Energy Cooperative Association of Pennsylvania Exelon Energy Company FirstEnergy Solutions Corp. Hoosier Energy REC, Inc. Illinois Municipal Electric Agency Indiana Municipal Power Agency Jack Rich, Inc. d/b/a Anthracite Power & Light Company Jersey Central Power & Light Company MidAmerican Energy Company Northern Indiana Public Service Company 401019 Registered Function(s) LSE PA RP TP X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X Page 3 of 4 Member Name Ohms Energy Company Old Dominion Electric Cooperative PECO Energy Company Pepco Energy Services, Inc. Potomac Electric Power Company PPL Electric Utilities Corporation d/b/a PPL Utilities PPL EnergyPlus, LLC PSEG Energy Resources and Trade, LLC Public Service Electric and Gas Company Reliant Energy Electric Solutions, LLC Rockland Electric Company (Registered with RFC as Orange & Rockland Utilities) Select Energy, Inc. Sempra Energy Solutions South Jersey Energy Company Southern Maryland Electric Cooperative, Inc. Strategic Energy, LLC UGI Energy Services, Inc. UGI Utilities, Inc. Vineland Municipal Electric Utility (Registered with RFC as City of Vineland, New Jersey) Wabash Valley Power Association, Inc. Wisconsin Electric Power Company Wolverine Power Supply Cooperative, Inc. WPS Energy Services, Inc. 401019 Registered Function(s) LSE PA RP TP X X X X X X X X X X X X X X X X X X X X X X X X X X X Page 4 of 4