Staff/Pas-13

(a)  With respect to your response to Staff/Pas-2(a), does Pasadena immediately acknowledge  an instruction to change the output of one of its units? (b) If Pasadena discovers that it is unable to change the output of a unit as instructed by the ISO does Pasadena immediately notify the ISO?

Staff/Pas-14

Please answer the following questions with respect to Exhibit X attached to your response to Staff-PAS-3.
a)  Are the fourth order polynomial equations on the charts average heat rate equations?  If so, shouldn't there be a constant/x term?  Please explain.

b)  If you were to develop an equation for the MW output/BTU input curve, would it be a fifth order polynomial equation?  Please explain.

c)  If you were to develop an equation for the incremental heat rate curve, would it be a fourth order polynomial equation?  Please explain.

d)  Was the measured heat rate data adjusted for standard ambient temperature conditions?  Please explain.

e)  Are these equations valid for summer or winter?  If both, please explain why the same heat rate data can be valid for all months of the year.

Staff/Pas-15

In its note to Table PAS-3 (Response to Staff/PAS-3), Pasadena states, "The ISO dispatching software does not recognize minimum run times, and the ISO has at times given dispatch instructions that result in run times or down times as short as a single interval."  Is Pasadena's assertion consistent with the ISO's claim in section 3.5 of ISO Operating Procedure M-403 that the ISO dispatcher can account for units with a minimum run time and will include the unit's minimum run time in successive BEEP intervals.  Please explain.