Common use of Model Development Clause in Contracts

Model Development. The contingencies shown in Table 5-3 were simulated for the cases without and with the SPS. 1. Case without SPS (Benchmark) with Athens dispatched at 700 MW 2. Case with SPS with Athens dispatched at 1080 MW and a 240 MVAr capacitor bank installed at Millwood In preparing the above cases, Siemens PTI used a power flow base case provided by the NYISO, which differed somewhat from the case used in the steady state analysis. In the power flow case provided for stability analysis, Athens was dispatched at 800 MW on three combined cycle trains. For consistency with the case used in steady-state analysis, Siemens PTI reduced Athens dispatch from 800 MW to 700 MW on two combined cycle trains. The MW reduction was balanced by units in Ontario. This case is referred to as the Benchmark Case without SPS. Then, Siemens PTI developed a stability power flow case with the SPS. In this case, Athens was increased to its full capacity i.e., 1080 MW, to increase flow on the Athens-Pleasant Valley and Leeds-Pleasant Valley (Lines 91 and 92) path. The additional Athens generation was dispatched against existing units in Con Ed. For consistency with the case used in steady-state analysis, a 240 MVAR capacitor was added at Millwood.