Circuit Reliability Review

Transcription

1 Circuit Reliability Review Newport Beach January 2018

2 Building a Smarter Grid for Southern California Southern California Edison is developing an electric grid to support California s transition to a clean and sustainable future that meets the needs and expectations of our customers. We are investing more than $13 billion in the power distribution grid over three years ( ). Our main investment goal is to increase power reliability through significant upgrades. The investments include: Upgrading cables, poles, switches and transformers Updating the grid so it can accommodate new technologies, such as smart inverters that will allow for the twoway flow of solar energy Adapting the power system to accommodate future California policy related to energy storage, electric transportation and renewable energy Providing enhanced automation and monitoring devices to allow us to better respond to changes on the grid Our investments in local communities will help ensure that customers receive safe, reliable, and affordable electricity now and in the future. Learn more at edison.com/innovation 2

3 Understanding Your Reliability Report As your electric utility, we want you to always have power when you need it. To get there, we constantly track and monitor electric outages across our service territory, and we measure our system reliability from this data. The two metrics we rely on are common in the electric utility industry: the System Average Interruption Duration Index (SAIDI) and the System Average Interruption Frequency Index (SAIFI). Both are described in more detail on the next page. Replacing and upgrading our infrastructure will help SCE maintain or improve SAIDI and SAIFI measurements. This report provides historical reliability data for the circuits that serve your jurisdiction and our proposed infrastructure upgrades for the current year. To view other reliability reports, visit sce.com>outage Center>Maintaining Reliable Service 3

4 Reliability Metrics MOMENTARY OUTAGES: OUTAGES LASTING 5 MINUTES OR LESS SUSTAINED OUTAGES: OUTAGES LASTING LONGER THAN 5 MINUTES MAIFI: o The number of times the average customer is interrupted by Momentary outages each year. SAIFI: o The number of times the average customer is interrupted by Sustained outages each year. SAIDI: o The cumulative amount of time the average customer is interrupted by Sustained outages each year. 4

5 Cities in the HUNTINGTON BEACH District COSTA MESA FOUNTAIN VALLEY HUNTINGTON BEACH NEWPORT BEACH SEAL BEACH WESTMINSTER CityList1 5

6 * Exclusions are days which utilities are allowed to remove from their metrics because the outages on those days were caused by a severe acts of nature. **In the columns showing Rank, lower numbers indicate poorer performance. 6

7 Overview of Newport Beach CircuitList1 There are 50 circuits that serve Newport Beach 1 Circuit Type Customers Circuit Type Customers Circuit Type Customers Circuit Type Customers JANUARY(12KV) 4,362 MANGRUM(12KV) ANNIKA(12KV) 1,542 MIDDLECOFF(12KV) 1, ARNOLD(12KV) 2,785 MINOSA(12KV) ATRIUM(12KV) 441 NORDINA(4.16KV) BALBOA(12KV) 714 OGLE(4.16KV) 1, BERTEA(12KV) 655 PENINSULA(12KV) 1, CAPE(4.16KV) 761 PERCH(12KV) 2, CHENUALT(12KV) 219 PIKE(12KV) 1, CHURCHILL(12KV) 36 RICHARDS(4.16KV) CLIFF(4.16KV) 654 ROMMEL(12KV) 1, COASTAL(12KV) 3,903 RUTGERS(12KV) 1, CORBINA(12KV) 1,893 SNEAD(12KV) 3, DOOLITTLE(12KV) 1,860 STILLWELL(12KV) DUPONT(12KV) 85 TINKER(12KV) 2, ELMIRA(4.16KV) 737 VARDON(12KV) ELPAC(12KV) 32 WAINWRIGHT(12KV) FARALLON(12KV) 516 WINGATE(12KV) 1, GEHRIG(12KV) 3,809 XEROX(12KV) GOLDWATER(12KV) 2,389 YELLOWTAIL(12KV) 3, GRUNION(12KV) 1,581 YACHT(4.16KV) 1, GUNTHER(12KV) 1, HALSEY(12KV) HOGAN(12KV) 2, INLET(4.16KV) JADE(12KV) 2, JAMBOREE(12KV) 2, KEWAMEE(12KV) 2, KRUEGER(12KV) 2, LA SALLE(12KV) LITTLER(12KV) Grand Total 70,470 7

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9 Causes of Repair Outages in Newport Beach 2017 SAIDIChart Equipment Failure e.g., in-service failure of transformer, switch, or conductors Vegetation/Animal e.g., tree branch, rodent, or bird causing a short circuit between conductors Other e.g., patrolled but no cause found Operations e.g., urgent maintenance w/o 3 day notice 3 rd Party e.g., balloon, car hit pole, dig in Weather /Fire /Earthquake 6.7% Vegetation /Animal 0.0% Operation 18.0% Other 4.1% Contributions to SAIDI by Outage Cause 3rd Party 5.1% Equipment Failure 66.1% 3rd Party Equipment Failure Operation Other Vegetation /Animal Weather /Fire /Earthquake SAIDI = the cumulative amount of time the average customer is interrupted by sustained outages each year. 9

10 Causes of Repair Outages in Newport Beach 2017 SAIFIChart Contributions to SAIFI by Outage Cause 3rd Party 2.4% Equipment Failure e.g., in-service failure of transformer, switch, or conductors Vegetation/Animal e.g., tree branch, rodent, or bird causing a short circuit between conductors Other e.g., patrolled but no cause found Operations e.g., urgent maintenance w/o 3 day notice 3 rd Party e.g., balloon, car hit pole, dig in Vegetation /Animal 0.0% Weather /Fire /Earthquake 10.3% Operation 16.2% Other 5.5% Equipment Failure 65.6% 3rd Party Equipment Failure Operation Other Vegetation /Animal Weather /Fire /Earthquake SAIFI = the number of times the average customer is interrupted by sustained outages each year 10

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13 Back-up Slides Reliability Histories of Circuits Serving Newport Beach Updated through Dec 2017

14 Average Reliability of 50 Circuits Serving Newport Beach CitySummary st Qtr nd Qtr rd Qtr th Qtr SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI 50 Circuits Serving Newport Beach -- Total Customers: 70, rd Party 8% 10% 22% 14% 20% 5% 3% 5% 3% % 8% 13% 2% 1% 36% 5% 1% 45% 5% 2% 23% Equipment Failure 71% 62% 54% 69% 54% 17% 81% 62% 27% 67% 60% 10% 71% 85% 81% 60% 65% 54% 64% 52% 18% 66% 66% 27% Operation 8% 11% 7% 10% 15% 2% 8% 10% 23% 13% 9% 8% 9% 6% 7% 37% 33% 2% 25% 32% 21% 18% 16% 10% Other 0% 2% 5% 2% 1% 44% % 5% 6% 22% % 1% - 7% 15% 15% 4% 5% 14% Vegetation/Animal 1% 3% 2% 0% 0% 24% 1% 15% 9% % % Weather/Fire/Earthquake 11% 11% 11% 6% 10% 8% 7% 7% 20% 15% 26% 32% % % 10% 15% SCE SYSTEMWIDE Notes: No outages are excluded from the metrics. Outage Causes: Other: e.g., patrolled but no cause could be found Operations: e.g., urgent maintenance w/o 3 day notice to customers 3 rd Party: e.g., balloons, car hit pole, dig in Vegetation/Animal: e.g., tree branch, rodent, or bird causing short circuit across conductors SAIDI (minutes) = the cumulative amount of time the average customer is interrupted by sustained (longer than 5 minutes) outages. SAIFI (interruptions) = the number of times the average customer is interrupted by sustained outages. MAIFI (interruptions) = the number of times the average customer is interrupted by momentary " (lasting 5 minutes or less) outages. 14

15 Reliability Histories for Individual Circuits Serving Newport Beach - 1 of st Qtr nd Qtr rd Qtr th Qtr SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI ANNIKA(12KV) - Customers: 1, CircuitHistory rd Party Equipment Failure % 99% - 89% 97% % 67% 100% % 65% 100% Operation % 1% - 11% 3% 100% 100% 100% % 33% % 35% - Other % Weather/Fire/Earthquake % ARNOLD(12KV) - Customers: 2, Equipment Failure 17% 7% % 3% - 100% 100% % 100% % 77% - Operation 83% 93% - 100% 100% % 100% % 23% - Other % Vegetation/Animal % 97% ATRIUM(12KV) - Customers: Equipment Failure Operation 100% 100% - 100% 100% - 100% 100% Other % Vegetation/Animal % BALBOA(12KV) - Customers: rd Party % 89% 46% Equipment Failure % 11% Operation % 100% % 100% - Other Vegetation/Animal %

16 Reliability Histories for Individual Circuits Serving Newport Beach - 2 of 13 CircuitHistory st Qtr nd Qtr rd Qtr th Qtr SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI BERTEA(12KV) - Customers: Equipment Failure 100% 100% 100% % 100% Operation Other Vegetation/Animal % CAPE(4.16KV) - Customers: rd Party % Equipment Failure 100% 100% % 28% % 28% - Operation % 72% % 72% - Other % CHENUALT(12KV) - Customers: Equipment Failure % 50% - 100% 100% % 100% - Operation % 1% Other % Vegetation/Animal % 100% 50% 8% 49% CHURCHILL(12KV) - Customers: Equipment Failure % Operation Other % Vegetation/Animal % 100%

17 Reliability Histories for Individual Circuits Serving Newport Beach - 3 of 13 CircuitHistory st Qtr nd Qtr rd Qtr th Qtr SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI CLIFF(4.16KV) - Customers: rd Party % Equipment Failure 12% 50% - 23% 2% - 96% 69% % 65% - 8% 5% - Operation % 98% - 4% 31% - 23% 2% % 2% - Other 3% 3% 50% % % 98% % 35% - 73% 93% - Weather/Fire/Earthquake 85% 47% 50% COASTAL(12KV) - Customers: 3, rd Party 75% 94% Equipment Failure 24% 6% - 91% 64% - 7% 9% 0% Operation 2% 0% - 9% 36% - 93% 91% % 100% - 100% 100% - Other % Vegetation/Animal % CORBINA(12KV) - Customers: 1, rd Party 35% 4% 32% % 100% 100% 93% 64% 100% % 40% 100% Equipment Failure 36% 52% 68% 33% 14% 34% 80% 89% - 41% 7% % 3% % 4% - Operation 1% 1% - 67% 86% 32% % 33% % 1% - Other % Weather/Fire/Earthquake 28% 44% % 11% - 59% 93% % 56% - DOOLITTLE(12KV) - Customers: 1, Equipment Failure 91% 37% 100% 82% 49% 3% 55% 7% - 100% 100% 100% % 92% 64% Operation 9% 63% - 18% 51% - 31% 13% % 100% 100% 100% 100% % 8% 36% Other % Vegetation/Animal % 80%

18 Reliability Histories for Individual Circuits Serving Newport Beach - 4 of 13 CircuitHistory st Qtr nd Qtr rd Qtr th Qtr SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI DUPONT(12KV) - Customers: Equipment Failure 100% 100% % 100% Operation % 100% % 100% % 100% - Other Vegetation/Animal % ELMIRA(4.16KV) - Customers: rd Party % Equipment Failure 25% 1% 100% % 50% 100% % 50% % 47% 100% Operation 5% 2% - 100% 100% - 100% 100% % 50% - 100% 100% - 9% 8% - Other % % 50% % 45% - Vegetation/Animal 9% 49% Weather/Fire/Earthquake 60% 48% ELPAC(12KV) - Customers: Equipment Failure 100% 100% 100% Operation Other Vegetation/Animal % FARALLON(12KV) - Customers: Equipment Failure 100% 100% - 100% 100% - 100% 99% % 100% % 100% - Operation % 1% Other % Vegetation/Animal %

19 Reliability Histories for Individual Circuits Serving Newport Beach - 5 of 13 CircuitHistory st Qtr nd Qtr rd Qtr th Qtr SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI GEHRIG(12KV) - Customers: 3, rd Party % Equipment Failure % 4% 1% - 88% 68% 57% 93% 48% % 63% - 88% 47% - Operation % 16% 29% 7% 53% - 100% 100% % 37% - 11% 48% - Other 100% 100% 50% % 100% % 6% - Vegetation/Animal % 1% Weather/Fire/Earthquake % 99% - 9% 15% 14% GOLDWATER(12KV) - Customers: 2, Equipment Failure 100% 100% - 97% 76% 2% 94% 75% - 87% 63% - 100% 100% - 99% 92% % 93% - Operation % 24% - 4% 1% % 8% - 100% 100% - 14% 6% - Other % % 38% % 1% - Vegetation/Animal % 24% GRUNION(12KV) - Customers: 1, rd Party % 98% % % Equipment Failure % 0% 50% % 100% % 100% % 69% - Operation 5% 3% - 17% 1% - 100% 100% % 100% - 4% 31% - Other % Vegetation/Animal 95% 97% 100% GUNTHER(12KV) - Customers: 1, rd Party % Equipment Failure 100% 100% - 70% 43% Operation % 57% - 100% 100% - 100% 100% % 100% - 100% 100% - Other Vegetation/Animal %

20 Reliability Histories for Individual Circuits Serving Newport Beach - 6 of 13 CircuitHistory st Qtr nd Qtr rd Qtr th Qtr SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI HALSEY(12KV) - Customers: Equipment Failure 43% 66% % 91% % 69% - Operation 57% 34% % 100% 66% % 100% - 0% 24% - Other % Vegetation/Animal % Weather/Fire/Earthquake % 9% % 7% - HOGAN(12KV) - Customers: 2, rd Party % 6% 100% 27% 3% 39% Equipment Failure % 68% - 96% 74% 100% Operation 3% 1% - 9% 16% 1% 4% 26% % 100% - 3% 1% - 37% 50% - Other % 16% 99% % % 93% - 35% 47% 40% Vegetation/Animal 4% 1% Weather/Fire/Earthquake 93% 98% 100% % % INLET(4.16KV) - Customers: Equipment Failure 93% 78% 100% 84% 37% 100% % 6% - 43% 2% - Operation 7% 22% - 16% 63% % 11% % 94% - 33% 43% - Other Weather/Fire/Earthquake % 100% - 57% 89% 100% % 55% 100% JADE(12KV) - Customers: 2, rd Party % 27% % 1% - Equipment Failure 63% 53% % 46% - 2% 1% - 85% 86% 100% % 74% - 77% 74% 50% Operation 37% 47% 100% - - 7% 54% 54% 50% 69% 80% - 15% 14% % 26% - 17% 21% - Other % 29% 19% % 73% % 4% - Vegetation/Animal % % % Weather/Fire/Earthquake % 0%

21 Reliability Histories for Individual Circuits Serving Newport Beach - 7 of 13 CircuitHistory st Qtr nd Qtr rd Qtr th Qtr SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI JAMBOREE(12KV) - Customers: 2, Equipment Failure 36% 47% 100% 100% 100% - 99% 93% 100% % 100% % 56% - Operation 64% 53% % 7% % 100% - 46% 44% - Other % % Vegetation/Animal % JANUARY(12KV) - Customers: 4, Equipment Failure 66% 95% 100% 94% 91% 44% 98% 98% 2% 100% 100% - 55% 89% - 100% 100% - 100% 100% 100% 91% 95% 100% Operation 34% 5% - 6% 9% - 2% 2% % 11% % 5% - Other % Weather/Fire/Earthquake % KEWAMEE(12KV) - Customers: 2, Equipment Failure 100% 100% 100% 100% 100% - 92% 85% Operation % 15% - 100% 100% % 100% - 100% 100% - 100% 100% - Other Vegetation/Animal % KRUEGER(12KV) - Customers: 2, Equipment Failure % 100% % 100% % 100% - Operation % 100% % 0% % 0% - Other % Vegetation/Animal %

22 Reliability Histories for Individual Circuits Serving Newport Beach - 8 of 13 CircuitHistory st Qtr nd Qtr rd Qtr th Qtr SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI LA SALLE(12KV) - Customers: rd Party % 89% Equipment Failure % 100% Operation % 11% Other Vegetation/Animal % LITTLER(12KV) - Customers: Equipment Failure % Operation 100% 100% - 100% 100% - 100% 100% % 100% - 100% 100% - Other % % % MANGRUM(12KV) - Customers: Equipment Failure Operation % 100% Other % Weather/Fire/Earthquake % 100% 100% MIDDLECOFF(12KV) - Customers: 1, Equipment Failure 100% 100% 100% 88% 90% 75% 0% 6% - 100% 100% % 99% 100% 98% 98% 100% 98% 98% 100% Operation % 10% - 100% 94% % 1% - 2% 2% - 2% 2% - Other %

23 Reliability Histories for Individual Circuits Serving Newport Beach - 9 of 13 CircuitHistory st Qtr nd Qtr rd Qtr th Qtr SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI MINOSA(12KV) - Customers: Equipment Failure % 60% - 37% 26% Operation % 12% 40% - 63% 74% % 100% - 100% 100% - 100% 100% - Other % Vegetation/Animal % NORDINA(4.16KV) - Customers: rd Party % Equipment Failure 100% 100% - 19% 27% 50% % % 100% - 100% 100% - Operation % 73% - 100% 100% Other % OGLE(4.16KV) - Customers: 1, rd Party % % % Equipment Failure 100% 100% - 2% 2% - 32% 7% % 100% % 100% - Operation % 93% Other % Weather/Fire/Earthquake % 98% % % PENINSULA(12KV) - Customers: 1, Equipment Failure Operation Other % 100% % Vegetation/Animal %

24 Reliability Histories for Individual Circuits Serving Newport Beach - 10 of st Qtr nd Qtr rd Qtr 2017 CircuitHistory10 4th Qtr SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI PERCH(12KV) - Customers: 2, rd Party % Equipment Failure 53% 17% % 19% % 100% 100% % 54% 100% Operation 47% 83% 32% 25% 6% - 15% 38% - 100% 100% % 46% - Other % 19% Vegetation/Animal % 75% 100% Weather/Fire/Earthquake % 43% PIKE(12KV) - Customers: 1, Equipment Failure 100% 100% 100% % 75% 12% % 45% - 100% 100% - 46% 6% - Operation % 76% - 1% 1% % 55% % 1% - Other % 24% Weather/Fire/Earthquake % 87% - 100% 100% 100% % 93% 100% RICHARDS(4.16KV) - Customers: Equipment Failure 100% 100% % 100% % 100% % 15% - Operation % 100% 100% % 85% 100% Other % 100% 100% ROMMEL(12KV) - Customers: 1, Equipment Failure 97% 99% Operation 3% 1% % 100% 100% % 100% 100% Other % Vegetation/Animal % 100%

25 Reliability Histories for Individual Circuits Serving Newport Beach - 11 of st Qtr nd Qtr rd Qtr th Qtr SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI CircuitHistory11 SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI RUTGERS(12KV) - Customers: 1, Equipment Failure 100% 100% Operation % 100% 100% % 100% 100% Other Vegetation/Animal % 100% 100% 100% SNEAD(12KV) - Customers: 3, rd Party 88% 98% 37% 52% 81% Equipment Failure 2% 0% 63% 16% 4% - 96% 94% 52% 100% 100% - 97% 99% % 1% - 68% 65% - Operation 10% 2% - 33% 15% - 4% 6% 48% % 1% - 100% 100% - 93% 99% 100% 32% 35% 100% Other % STILLWELL(12KV) - Customers: Equipment Failure % 100% - 98% 50% - Operation Other % % 100% % 50% - Vegetation/Animal % TINKER(12KV) - Customers: 2, rd Party 9% 2% Equipment Failure 22% 7% 100% 100% 100% - 16% 53% % 99% - 100% 100% 100% 100% 100% - 64% 67% 100% Operation 70% 92% % 1% % 0% - Other Weather/Fire/Earthquake % 47% 100% 100% 100% % 33% - 25

26 Reliability Histories for Individual Circuits Serving Newport Beach - 12 of st Qtr nd Qtr rd Qtr th Qtr CircuitHistory12 SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI VARDON(12KV) - Customers: Equipment Failure 100% 100% - 98% 54% - 100% 100% 69% Operation % 46% - 0% 0% Other % % WAINWRIGHT(12KV) - Customers: Equipment Failure 49% 63% 100% % 3% - 100% 100% 100% % 83% 100% Operation 51% 37% % 1% % 100% - 16% 17% - Other % Vegetation/Animal % 96% WINGATE(12KV) - Customers: 1, Equipment Failure Operation % 100% Other % Vegetation/Animal % 100% XEROX(12KV) - Customers: Equipment Failure Operation % 100% - 100% 100% Other % 100% - 100% 100% - Vegetation/Animal %

27 Reliability Histories for Individual Circuits Serving Newport Beach - 13 of st Qtr nd Qtr rd Qtr th Qtr SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI SAIFI MAIFI SAIDI CircuitHistory13 SAIFI MAIFI SAIDI SAIFI MAIFI YACHT(4.16KV) - Customers: 1, Equipment Failure % 100% - 100% 100% Operation Other % % Weather/Fire/Earthquake % YELLOWTAIL(12KV) - Customers: 3, rd Party % 50% - 97% 99% Equipment Failure 88% 76% 50% 36% 50% % 100% % 21% - 100% 100% - 94% 96% - Operation 12% 24% 50% 0% 0% - 3% 1% % 100% - 67% 79% % 4% - Other Vegetation/Animal % % 27