Meeting Connection. Customers unable to attend the meeting in person may participate by phone and webinar.

Transcription

1 Meeting Connection In compliance with Commission Decision D , PacifiCorp has scheduled a public inperson presentation to review the company s annual reliability report submitted to the Commission on July 13, The meeting will take place September 19 at 6 pm at the Mount Shasta Resort in the Siskiyou Room. The Mount Shasta Resort is located at: Mount Shasta Resort 1000 Siskiyou Lake Blvd. Mount Shasta, CA (530) (800) Customers unable to attend the meeting in person may participate by phone and webinar. Please click this URL to join the webinar: Or Telephone: Dial or Webinar ID:

2 Pacific Power s 2018 California Electric Reliability Report September 19,

3 Introduction & Welcome Monte Mendenhall: Pacific Power Business Manager for Southern Oregon & Northern California 3

4 Proudly Serving Northern California Number of employees About 60 employees Line Miles Transmission, all states: 16,500 Distribution, all states: 63,000 California grants and charitable donations in 2017 Corporate: $29,406 Pacific Power Foundation: $23,689 Service area Number of customers in the state: 45,078 California property taxes and fees paid in 2017 Franchise Tax: $1, 290, 959 Property Tax: $2,277,263 4

5 Proudly Serving Northern California California customer mix by percentage % BY NUMBER % BY USAGE 50% 31% 11% 8% 79% 16% 4% 0% 0% 20% 40% 60% 80% 100% Residential Commercial Irrigation Industrial 5

6 Promising Excellent Service Our Customer Service Guarantees help ensure we re delivering to the highest standards. Guarantees cover: Restoring power after outages Keeping appointments Switching on power Estimates for new power supply Billing questions Meter problems Planned interruptions If we fail to meet a guarantee, we ll credit your account $50. Some guarantees require a claim to be filed and there are certain circumstances in which the guarantees do not apply. 6

7 Planning for a Clean Energy Future PacifiCorp s Energy Vision 2020 project adds three new wind projects in Wyoming that will provide a total 1,150 MW of new wind energy capacity, add a new 140-mile high-voltage transmission line, also in Wyoming, and repower 900 MW of existing wind resources in Wyoming and Washington. The new wind projects will increase the amount of owned and contracted wind capacity on PacifiCorp s system by more than 60 percent and add enough new wind energy to power more than 400,000 average homes by 2020 upgrade the company s existing wind fleet with longer blades and newer technology that will boost output by more than 25 percent and extend the life of the wind turbines 7

8 US Energy Prices 8

9 Service Territory 9

10 Delivering Reliable Electric Service 10

11 Power Delivery System 11

12 Why are there Power Interruptions? Faults occur when unexpected objects contact the power lines or when equipment fails An outage is a designed response to a fault event. If the fuses or other protective devices didn t exist, the system would create bigger outages and pose safety risks When possible, we attempt to respond to certain faults by having equipment deenergize and then quickly re-energize, which may cause a short interruption in power, but avoids the time it takes for a crew to respond In other cases, a trouble-man or crew response will be required and the restoration time will vary depending on what work is required Normally, outages impact small numbers of customers, however sometimes these events can occur on the transmission system or in a substation and they will affect larger amounts of customers, as shown on the previous slide 12

13 Key Causes of Power Outages Weather and its effects: trees or branches knocked down by wind, snow or ice into power lines Lightning strikes a transformer or other electrical facilities Car accidents where utility poles are knocked over or sway enough to knock the lines together and trip off the circuit Equipment overload, especially on hot days when air conditioning is cranked up, or during extremely cold weather when electric heaters are turned on all over the system Animals that contact the lines Digging too close to lines or cutting into a line Sometimes the outage is a result of a circuit overload within your own home. Check your fuses and breakers first. If they continue to trip off, call a local electrician to handle the problem. 13

14 California Outages by Cause

15 Customer and Company Communication Processes 15

16 Typical Outage Restoration Process Customer experiences a service problem and notifies the utility Trouble ticket is created for the service problem Trouble or outage ticket arrives in Outage Management System (OMS) Outage information posted for the customer who can access via web, phone, app Work assigned to trouble man, responder or crew. Nature of problem is communicated. Dispatcher models outage and posts information in OMS Power is restored. Additional outage details are communicated as it becomes available. Dispatcher completes outage in OMS to ensure proper times are captured 16

17 Outage Map on Smart Devices 17

18 Outage Updates Your Way 18

19 Customer Reliability Communications Outage Power Quality Inquiry Customer calls about reliability Customer service representative attempts to address customer's concern (i.e. review OPQ history or outage event history) Or call Has the matter been resolved? Yes Document details of the call & resolution No Yes Employee creates Outage Power Quality Inquiry transaction Has the matter been resolved? Yes No Outage coordinator reviews outage history and attempts to resolve customer's concern Investment delivery or field operations employee reviews inquiry and relevant outage history, scheduled projects and other pertinent data Complaint Customer calls to file company complaint about reliability Employee records pertinent data; researches situation to resolve matter; responds to customer Has the matter been resolved? Yes No Employee investigates further No Employee records pertinent data and responds to customer Document resolution Yes Has the matter been resolved? Commission Complaint Customer calls commission to file complaint about reliability Commission staff communicates customer complaint details Employee records pertinent data; researches situation to resolve matter; responds to appropriate party Yes Has the matter been resolved? No Employee investigates further Document resolution Yes Has the matter been resolved? Employee records pertinent data and responds to appropriate party 19

20 Measuring and Improving Reliability 20

21 Outage Classifications The company classifies outages according to industry definitions, in Institute of Electrical and Electronics Engineers (IEEE) standards. Momentary Outage An outage less than 5 minutes in duration. Sustained Outage An outage equal to or greater than 5 minutes in duration. Planned Outage Outages which are customer or public official-requested or where the company has provided notice to the customer. Major Event A set of outages which occurred during a specific time and location and which combined, exceeds historically expected outage duration (SAIDI) for at least one day (as defined in IEEE ) 21

22 Standard Reliability Measures SAIDI - (system average interruption duration index) The average duration summed for all sustained outages a customer experiences in a given time-frame. SAIFI - (system average interruption frequency index) The frequency of all sustained outages that the average customer experiences during a given time-frame. CAIDI - (customer average interruption duration index) The result of dividing the duration of the average customer s sustained outages by frequency of outages for that average customer. It represents the average duration of an outage. MAIFIe - (momentary average interruption event frequency index) The frequency of all momentary interruption events (< 5 minutes) that the average customer experiences during a given time-frame. 22

23 Major Events Major Event Summary Date District Cause Customers out for a duration of: 5 min - 3 hrs hrs hrs hrs hrs hrs. January 3-7, 2017 January 8-12, 2017 January 18-20, 2017 January 21-23, 2017 April 7-8, 2017 California (State) California (State) California (State) California (State) California (State) Winter Storm 12,195 7,390 4, Winter Storm 10,474 9, Winter Storm 12,523 4,503 6,568 1, Winter Storm 6,995 3,197 3, Wind Storm 34,911 10,512 24, August 2, 2017 Tulelake/ Alturas Loss of Transmission/ Wind Storm 2, , November 15, 2017 California (State) Loss of Transmission/ Damaged Equipment 9,854 5,971 3,

24 Major Event Example April 7-8, 2017: Windstorm Outage Cause Outage Cause Impact During the Major Event Total Customer minutes lost Total Customers Impacted B/O EQUIPMENT 0% 0% DETERIORATION OR ROTTING 1% 3% EMERGENCY DAMAGE REPAIR 0% 1% LOSS OF TRANSMISSION LINE 33% 49% TREE - NON-PREVENTABLE 31% 15% WIND 34% 32% Grand Total 100% 100% 24

25 Reliability Work Includes: Improving Reliability 1) Installation or replacement of devices, such as fuses, recloser or breaker, that can limit how much of the circuit may be involved when a fault event occurs 2) Replacement of equipment which may no longer be functioning in a reliable manner, as an example, replacing deteriorated underground cable 3) Hardening the circuit so that it is more resilient to events which could result in a fault, such as targeted tree trimming or animal guarding Cost Effective Improvements 1) evaluates performance across the system, and 2) determines for historic outages what actions could be taken to either eliminate them or minimize the effect for the specific cause, then 3) it calculates a cost per avoided customer minute interrupted, and 4) rank orders the most impactful and lowest cost projects, then 5) constructs the work and evaluates the effectiveness of the project. 25

26 History of Improving Reliability in California Annually the company evaluates the system s performance and looks for opportunities to improve reliability based upon outage events; this assessment has led to these projects below. Year California Circuit Projects

27 Reliability Current Efforts Worst Performing Circuits We calculate a performance indicator value for each circuit that considers how long the customers were without power (SAIDI), how many times they have been interrupted for both sustained (SAIFI) and short outages (MAIFI). This metric excludes outages which are Planned, Transmission or Major Events. Targeted Reliability Projects In addition, the company also selects other projects that are targeted to improve reliability, building on the success we ve had with our reliability program 27

28 Improving Reliability Three Selected Worst Performing Circuits Top 3 Worst Performing Circuits Calendar Year 2018 Circuit Name Town (5G16) South (5G99) Patrick s Creek (6R3) District Yreka/Mt. Shasta Yreka/Mt. Shasta Crescent City Customer Count Substation Name Happy Camp Shotgun Creek Patrick s Creek Circuit-Miles 39.6 miles 16.5 miles 7 miles % UG 7% 6% 0% % OH 93% 94% 100% Work proposed # Breaker/Recloser Operations Transmission system improvements, circuit hardening Transmission system improvements, circuit hardening including enhanced vegetation Circuit hardening including enhanced vegetation CPI99 Baseline Preferred Baseline Reliability Performance Measure Target Performance Measure 28

29 State & District Performance 29

30 10 Year State Reliability Results Combined - Transmission and Distribution Including Major Events Excluding Major Events 30

31 10 Year Crescent City Reliability Results Combined - Transmission and Distribution Including Major Events Excluding Major Events 31

32 10 Year Yreka/Mt. Shasta Reliability Results Combined - Transmission and Distribution Including Major Events Excluding Major Events 32

33 10 Year Tulelake/Alturas Reliability Results Combined - Transmission and Distribution Including Major Events Excluding Major Events 33

34 Summary The company has made cost effective improvements in order to deliver higher reliability while minimizing cost impacts to customers We have shown demonstrated improvements as measured by industry indices We intend to continue to improve the service reliability you receive We welcome the opportunity to talk with customers about reliability Thank you for your attention! 34

35 Website Information Information on reliability and this presentation Real-time outage viewer Outage information Annual report fety/reliability/2017_pacificorp_ca_annual_electric_reliability_report.pdf Contact us at 35