IWG Update January 2015 ISAS Danielle Johnson

Review of the WECC PreSchedule Guidelines PreSchedule Calendar Guideline (Last updated in 2010). Per IWG discussion 08/26/2015 : Request for 2/3/2 for Thanksgiving to accommodate early out prior to Holiday, and elevate pressure on third day. – Used to be 2/3/2 but received a request to be closer to flow. Does it still apply in today world>. Take a look at gas schedule, does it still align? Participant (s) cautioned about changes to guideline. – Overall appears to be working

Con’t review of the WECC PreSchedule Guidelines Per IWG discussion : If Christmas falls on Thursday follow Thanksgiving schedule – Impacts with Christmas Eve – Concern on Scheduling with three holidays in a row – Occurs approx. every 5 years. – Friday after Christmas can be declared Federal Holiday. Next Steps: – Review the Gas Schedule and alignment with WECC PreSchedule Calendar, – Review impact of the 2 request. – Recommendations January ISAS

Impact of changes to the INT-003-WECC-CRT-2.1 – Changes in INT-021 WECC WIT Check out Confirmation WR2 WR2. Each Balancing Authority shall confirm its common NSI with each Adjacent Balancing Authority at the following time periods: – Prior to implementing the energy profile of the aggregated Confirmed Interchange (and) – After the operating hour. Heads up – This may transition to some BA’s not checking out in WIT for PreSchedule.

WIAB Desk Top Exercise Fall of 2015 Looking for volunteers – Need BA’s, – Intermediate TP’s – Marketer BPA Transmission willing to participate