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  • Page 1 of 33

    District Council of Coober Pedy

    ANNUAL COMPLIANCE REPORT

    ELECTRICITY OPERATIONS

    1st July 2016 to 30th June 2017

  • Page 2 of 33

    ANNUAL REPORT OF ELECTRICITY OPERATIONS

    FROM 1st JULY 2016 - to - 30th JUNE 2017

    INDEX LISTING

    Page 2 Index

    Page 3 Licence Information:

    Name of the Officer of the Licensee Name of Licensee GENERATION OPERATIONS

    Page 4 Description of Generating Plant including Installed Capacity (MW) Wind Turbine Information Diesel Litres Usage Page 5 Outages planned and unplanned

    Page 6 Energy Produced Plant Availability

    DISTRIBUTION OPERATIONS Page 7 Length of Network Lines & Cables by voltage category

    Distribution Assets: Page 8 Street lighting Page 8 - 9 Transformers SWER & Town

    Page 9 - 10 Outages - Planned and Unplanned Power Quality Complaints Page 11 - 14 Work Completed by Power Line Personnel and Electricians Customers disconnected for non-payment of accounts Page 15 Quotations for New Supplies and Alterations

    Non-compliant installations

    Page 16 Removal and Installation of Electricity Meters

    RETAIL OPERATIONS

    Page 17 Number of customers by customer category Electricity Sales: Consumer Category, kWhs and Sales Revenue Page 18 Employees and Qualifications

    Page 19 - 30 Graphs showing Station Daily Loads for each month.

    Page 31 Additional Information Page 32 - 33 Statement regarding Licence Obligations

  • Page 3 of 33

    LICENCE - Information regarding the electricity operations in Coober Pedy Electricity Retail and Distribution Licence was issued on 10th August 2016. Officer: Ms Fiona Hogan, Chief Executive Officer District Council of Coober Pedy Licensee: This has been issued to the District Council of Coober Pedy

  • Page 4 of 33

    GENERATION OPERATIONS

    GENSETS Generating Plant OWNED BY ENERGY DEVELOPMENTS

    EIGHT (8) in total:

    DEUTZ DIESEL GENSETS TBD 616 V12 514 KW (site rating) Each in a separate container

    Control Room in a separate container adjacent to the gensets

    INSTALLED CAPACITY: 4.112 MW (Mega watts)

    WIND TURBINE OWNED BY COUNCIL AND LEASED BY ENERGY DEVELOPMENTS

    MAKER

    RATING kW H.P.

    R.P.M.

    ANNUAL PRODUCTION kW hours

    NORDEX WIND TURBINE

    150

    27 / 35

    30,000

    DIESEL LITRES USED

    YEAR

    LITRES

    From: 1st July 2016 to 30th June 2017

    3,142,106

    The District Council of Coober Pedy has a contractual relationship with Energy Developments with the details of that relationship documented in a Power Purchase Agreement.

    To date the District Council of Coober Pedy has been most satisfied with the performance of Energy Developments with all generation obligations being met.

  • Page 5 of 33

    GENERATION PLANNED OUTAGES

    1st July 2016 to 30th June 2017

    No planned outages during this financial year.

    GENERATION OUTAGES

    1st July 2016 - 30th June 2017

    Generation Outages

    Type of Outage

    Amount of

    Outages

    Minutes

    Seconds Customers Per

    Outage

    Total Customers Affected

    UNPLANNED High Voltage 5

    261

    148

    Hospital Feeder 750 750

    Town Feeder 750 750

    PLANNED High Voltage

    Nil Low Voltage

    TOTALS 5 261 148 1500 1500

    GENERATION UNPLANNED OUTAGES

    1st July 2016 - 30th June 2017

    Date Reason Hospital Feeder

    Customers Per Outage

    Town Feeder

    Customers Per

    Outage Total

    Duration Min Sec Min Sec Mins Secs

    28 Nov 2016 MPU fault on Gen # 6

    15 2 750 15 2

    2 Feb 2017 Gen # 4 tripped on fire fault

    42 13 1500 42 13

    12 Apr 2017

    Fault on Gen # 6 causing an overload condition on UFLS on both feeders

    134 38 750 137 52 750 137 52

    12 Apr 2017

    Loss of 24V supply to both feeder protection relays

    53 15 750 58 30 750 58 30

    30 June 2017

    Feeder Q1205 opened on UFLS following Gen # 1 and # 5 both tripping off-line on faults

    9 51 750 9 51

    TOTALS 196 104 3000 237 237 3000 261 148

  • Page 6 of 33

    ENERGY PRODUCED - KwHS

    From: 1st July 2016 to 30th June 2017

    MONTH GENERATION

    PRODUCED AUXILIARIES

    NET PRODUCED

    WIND TURBINE

    TOWN CONSUMPTION

    JULY 2016 1,045,756 1164 1,044,592 30,000 1,074,592

    AUG 1,013,568 1374 1,012,194 1,012,194

    SEPT 923,656 1669 921,987 921,987

    OCT 880,384 3099 877,285 877,285

    NOV 942,976 6009 936,967 936,967

    DEC 1,079,296 7224 1,072,072 1,072,072

    JAN 2017 1,202,160 0 1,202,160 1,202,160

    FEB 1,068,121 0 1,068,121 1,068,121

    MAR 1,121,479

    0 1,121,479 1,121,479

    APR 864,576

    0 864,576 864,576

    MAY 900,644 0 900,644 900,644

    JUNE 2017 1,016,937 0 1,016,937 1,016,937

    TOTALS

    12,059,553 20,539 12,039,014 30,000 12,069,014

    Note: 1. All hours are kilowatt hours

    2. Units as indicated from Energy Developments 3. Total produced = 12.08 MWhs

    Please Note: These were the only figures supplied at time of compiling this report.

    PLANT AVAILABILITY: With eight gensets available to come on-line to suit load requirements, each individual genset is taken off-line for a minimal amount of time when scheduled servicing is due and when the electrical checks and maintenance have to be carried out. The Wind Turbine has been disconnected from the distribution network and two, 2 Mega Watt Turbines will be commissioned during the next financial year along with one Mega Watt of solar panels.

  • Page 7 of 33

    DISTRIBUTION OPERATIONS

    LENGTH OF NETWORK LINES & CABLES

    OVERHEAD LINES

    VOLTAGE

    BETWEEN PHASES

    LENGTH (KM) TOWN & DISTRICT SUPPLIED

    19 kV SWER

    38

    COOBER PEDY - LOCAL AREA

    L.V.

    59

    COOBER PEDY - TOWNSHIP

    6.6 kV

    18.5

    COOBER PEDY - TOWNSHIP

    UNDERGROUND CABLES

    VOLTAGE

    BETWEEN PHASES

    LENGTH (KM) TOWN & DISTRICT SUPPLIED

    6.6 KV Includes PLEC Scheme

    4

    TOWN AREA

    415 V Includes PLEC Scheme

    8.6

    TOWN AREA

    Note: Undergrounding of cables is carried out on a needs basis. Cables crossing major roadways are gradually being placed underground

    to allow passage for the over-height mining machinery prevalent in the township.

  • Page 8 of 33

    STREET LIGHTING

    SIZE DESCRIPTION TOTAL

    22W SOLAR 15

    28W LED 5

    55W LED 5

    80W MERCURY 324

    90W SODIUM 1

    100W SODIUM 120

    250W SODIUM 3

    400W MERCURY 17

    1000W METAL HALIDE 12

    2000W METAL HALIDE 42

    TOTAL 544

    Note: All streetlights are assets of the District Council of Coober Pedy; with repairs and maintenance being completed as soon as possible.

    TRANSFORMERS

    SWER

    Potch Gully 5kVA = 1

    10kVA = 55

    20kVA = 16

    25kVA = 8

    50kVA = 2

    Hopeful Hills 5kVA = 2

    10kVA = 43

    20kVA = 10

    25kVA = 3

    50kVA = 2

    TOTAL 142

  • Page 9 of 33

    TOWN 3

    DESCRIPTION AMOUNT

    25 kVA 1

    50 kVA 3

    100 kVA 3

    150 kVA 3

    200 kVA 29

    150 kVA Pad Mount 1

    300 kVA Pad Mount 1

    315 kVA 4

    450 kVA 1

    500 kVA 3

    TOTAL 49

    DISTRIBUTION NETWORK OUTAGES

    1st July 2016 - 30th June 2017

    Distribution Outages

    Type of Outage

    Amount of Outages

    Days

    Minutes

    Seconds Total

    Customers Affected

    UNPLANNED High Voltage 6

    1027 2652

    Low Voltage 24

    8 3951 38 2345

    PLANNED High Voltage 67

    2509 354

    Low Voltage 9

    953 22

    TOTALS 106

    8 8440 38 5373

  • Page 10 of 33

    Unplanned power outages - below outlines some of the causes:

    High Voltage Replaced Fuse at Transformer # 76 Due to incorrect protection setting selected Fault on CP03 recloser damaged by Eagle Network overcurrent fault Birds caused fuse to blow Replaced fuse due to bird strike

    Low Voltage Property disconnected due to damaged meter box Bird damage to service Blown service fuses Re-terminated damaged cable in service box Neutral fault Installation of new O/U service Network over current fault Circuit breaker tripped in customers switch board

    Planned power outages below outlines some of the causes:

    High Voltage 49 were for testing SWER earth system on transformers Repairs to several SWER earthing transformers Removed transformer from Hutchison Street Isolate transformer # 59 for repairs to consumer mains Removed transformer # 42 out of service Removed redundant conductors Replaced damaged insulator Corrected phase rotation Installation of HV arm Low Voltage Meter change Isolate transformer for tap change Upgraded LV services Meter test required Removed one span of open wire Relocated services Replaced faulty 3 phase meter Carried-out work on consumer mains switchboard Meter relocation

    Note: All customers were notified with a hand delivered notice a f