Zilkha Availability

Kurt,
Per our phone conversation, Mark Fisher and myself have been discussing
availability with Gary from Zilkha. A question arose regarding the many
operations of our breaker in the pad mounted transformer that took place
December through March. Gary's thought is that when we recalculate the
availability, we need to count these times as down time and not Line Out
Hours as they have currently been counted. I suggested that according to
Exhibit GG in the TSIA, LOH is defined in short as any time the grid does not
meet "(i) the specifications required by the WTG as set forth in the
Technical Specifications", and Gary agrees with this. The problem is that an
engineering change on the breaker settings was implemented some time in March
to reduce the number of breaker operations on site. We are still seeing many
grid faults in the turbine but not in the PMT breaker. The question that Gary
brought up is were the original settings of the breaker set to the WTG
Technical Specifications and operating due to the on going grid conditions OR
were the settings improper to start with causing the breaker to operate while
the grid was within Technical Specifications.