Transmission Customer Meeting May 28, :00 – 10:00 Lake Natoma Inn 1

Agenda Kevin Howard, Vice President of Operations Welcome/General Updates Update on Western SNR’s implementation plan for meeting new TOP Reliability Standard requiring Real Time Contingency Analysis Update on Planning Authority/Planning Coordinator Discussions with Customers Jennifer Henn, Public Utilities Specialist Tra nsmission Rates Update Art Diaz-Gonzalez, Outage Coordinator Posted outages and accessing transmission information through Western’s OASIS site 2

SNR Real-Time Contingency Analysis (RTCA) and Planning Authority/Planning Coordinator (PA/PC) Discussions Update, May 2015 Kevin Howard Vice President of Operations, SNR 3

Real-Time Contingency Analysis (RTCA) Requirements 4 Updated NERC Standard – TOP High priority – being pushed by FERC Adopted by NERC Board of Trustees, February 12, 2015 Filed at FERC for approval, March 18, 2015 Enforcement Originally expected – April 1, Now????

Real-Time Contingency Analysis (RTCA) Requirements 5 Real-time Assessment - An evaluation of system conditions using Real-time data to assess existing (pre-Contingency) and potential (post-Contingency) operating conditions. R13. Each Transmission Operator shall ensure that a Real-time Assessment is performed at least once every 30 minutes. [Violation Risk Factor: High] [Time Horizon: Real-time Operations]

Real-Time Contingency Analysis (RTCA) Requirements 6 Considered potential partnership opportunities with SMUD and Western’s other Regions o Not viable at this time, due to system model challenges and development of tools Continuing Development of Alstom tool to accomplish RTCA o State Estimator also supports Dispatch Training Simulator Interim – utilize Peak RC Hosted Application for next 3 years along with SNR Alstom RTCA SNR’s Actions:

Real-Time Contingency Analysis (RTCA) Requirements 7 A number of TOP’s/BA’s are planning to staff 24x7 Operations Engineering (OE) Desks to cover this need SNR requested 6 FTE’s to staff a 24x7 OE Desk in 2016/2017 Currently considering coverage by staffing second TSO Dispatcher on 5x12 hr shift, Monday – Friday (2 additional TSO positions) o These positions would also help with critical workload issues during peak loading and peak field work timeframes during the week o Additional Operations Engineering position and SCADA Engineer Potentially reduce new staff requirement to 4 instead of 6 FTE SNR’s Actions:

Planning Authority/Planning Coordinator Requirements 8 Plan to claim COTP within Western’s Planning Coordinator footprint o Implementation – Fall 2015 Plan to provide Planning Coordinator services to SBA LSEs o Implementation – January 2016 Continuing to work through Reliability Standards Requirements o Identify roles and responsibilities o Identify resource needs and funding requirements New staff will be required to cover these services o To be funded by TANC and SBA LSEs SNR’s Actions:

RTCA and PA/PC Requirements ? Thank You 9

Transmission Customer Meeting Rates Group Jennifer Henn, Public Utilities Specialist 10

Transmission & Regulation 11

CVP Transmission Rate (Current and Forecasted) 12 Central Valley Project Transmission Rates Forecast (as of May 2015) Rate or Revenue Requirement Current Non-Binding Forecast Rate generally effective April 1 each year TRR (in millions)$43.7$45.9$47.9$50.0$50.9 Plant Additions (in millions) $36.1$7.9$20.4$12$0 Transmission Plant Ratio 66.55%66.96%68.61%69.51% NITS (in millions)$31.1$32.0$33.4$34.8$35.5 Capacity (kW-Month)2,405,7012,301,612 Point-to-Point Rate ($/kW Mo.) $1.51$1.66$1.73$1.81$1.84

Rates Group ? Thank You Rates and forecasts are posted at: Regina Rieger, Manager (916) Barbara Lynch(916) Daniel Flores (Student) (916) Jennifer Henn (916) Steve Richardson(916)

WASN OATI OASIS Art Diaz-Gonzalez, Outage Coordinator 14

WASN OATI OASIS No special log in is required to access the WASN OATI OASIS WASN OATI OASIS 15

WASN OATI OASIS Select Westtrans.net 16

WASN OATI OASIS Select Western WASN 17

WASN OATI OASIS Select WASN Scheduled Outages Select Outages next day + 30 days 18

The rolling 30 day outage outlook pdf that is posted daily, this is not a real-time tool. Posted once a day by the Outage Coordinator. WASN OATI OASIS 19

Select OASIS Notices Select Outage WASN OATI OASIS 20

This is the Real-Time tool and is kept up to date by the WASN TSS dispatcher. Click on the text in the Message to see the details WASN OATI OASIS 21

WASN OATI OASIS 22

2 flavors of WASN OASIS postings: Outages that affect the CVP ATC: – These outages are currently posted and managed in OASIS by the TSS desk, this will remain unchanged. The expectation is that the outage is posted as soon as practical. Outages that do not affect CVP ATC: – These outages impact the WASN merchant are posted to OASIS by the TSS desk who will manage these additional scheduling points (lines or CB). No CVP ATC will be assigned. The expectation is that the outage is posted as soon as practical. 2 Timelines for WASN OASIS postings: Scheduled outages – These outages comply with the approved lead-time as outlined in WASN Operating Procedure OP-053 Planned Outage Coordination and the TSS desk will be notified by the OASIS tool via an . Real-time outages – These outages do not comply with the approved lead-time as outlined in WASN Operating Procedure OP-053 Planned Outage Coordination and the TSS desk will be notified by the TSO desk in real-time. WASN OATI OASIS 23

The WASN Transmission lines listed below will be posted on OASIS in the NOTICES section. This is a process to be performed by the Outage Coordinator and the TSS desk. Process: New outages: – The Outage Coordinator posts the outage in the OASIS notices section once a day, this posting is tomorrow plus 30 days (an is automatically sent to the distribution list in OASIS). – The TSS desk receives the from the OASIS tool and creates the necessary notice(s) in OASIS. Date/time changes to existing outages: – The outage coordinator will process the date/time change to an existing outage and post the update to the OASIS notices section. – The TSS desk receives the from the OASIS tool and updates the affected notice(s). WASN OATI OASIS 24

Cancelled outages: – The outage coordinator will process the cancellation of an existing outage and updates the OASIS notices section. – The TSS desk receives the from the OASIS tool and cancels or deletes the respective notice(s). At noon each day the TSS will use TOA outage tool to filter for OATI outages in the date range to be determined and compare them to the OASIS notices to verify correctness of the posted outages. WASN OATI OASIS 25

Lines or Paths that do not impact CVP ATC but need to be posted for the WASN merchant under notices section: Tracy-Livermore 230kv line (TRY-LLL) Livermore-U kv line (LLL-LLN) Tracy-Contra Costa 69kv line (TRY-CC) Elverta CB 1182, WASN Elverta to SMUD Elverta (ELV-ESE) Trinity-Weaverville 60kv line (TNI-WEA) Trinity-Carr 230kv line (TNI-CAR) Tracy-Westley #1 & #2 230kv lines (TRY-WES) (Added December 4, 2014 per an agreement by both WASN and MID, this agreement is posted on the WASN OASIS home page). WASN OATI OASIS 26

WASN OASIS Home Page Posted agreement between WASN and MID 27