Application of Probability Methods to the Determination of Spinning Reserve Requirements for the Pennsylvania-New Jersey-Maryland Interconnection

A procedure is presented for the determination of spinning reserve requirements such that the reliability of service remains constant from hour to hour, day to day, and season to season. The effect of such factors as changes in load level, changes in short-time load forecasting error probabilities and changes in the size of units scheduled to operate are taken into account. The procedure described has been adopted by the Pennsylvania?New Jersey?Maryland Interconnection.