1.5 STOCKTON

TYPE OF CONSTRAINTS

_ Reliability Must Run (RMR).

¬ There is not an overall RMR reliability constraint. However, there are four sub-area problems.

¬ Problem:

· Tesla-Bellota-Stanislaus 115 kV Area-Tesla 230/115 kV Bank #3 loaded 113.3 % of it's 4 hour emergency thermal limit.

· Valley Springs 60 kV Area- With a 230/60 kV transformer bank outage at Valley Springs there is a 73 MW deficiency in generation.

· Lockeford-Lodi 60 kV Area-Three 60 kV lines have normal thermal limit overload. With the Lodi 25 MW combine cycle turbine out, the Lockeford-Lodi Jct. 60 kV has a normal thermal overload with a T-1 outage.

· Stagg 230, 60 and 21 kV Area-Without the LODI STIG generator (36 MW and 24 MVAR) and an N-1 outage (Tesla-Stagg 230 kV line) there are low voltage problems.