New Zealand Gazette – 2011 – No. 187

Page 5436

✨ Gas Performance Measures



NEW ZEALAND GAZETTE, No. 187

5 DECEMBER 2011

Statement of Performance Measures

For the Year ended 30 June 2011
For the purposes of the Gas (Information Disclosure) Regulations 1997
Regulations 15, 17 & 18

1. Financial Performance Measures

Reference 2011 2010 2009 2008 2007 2006 2007*
Accounting Return on Total Assets Sch 1 Pt 2.1(a) 10.54% 11.74% 10.13% 7.58% 1.10% 4.27%
Accounting Return on Equity Sch 1 Pt 2.1(b) 10.86% 12.69% 11.31% 11.37% -0.02% 5.42%
Accounting Rate of Profit Including Network Revaluation Sch 1 Pt 2.1(c) 10.00% 10.96% 9.28% 11.12% -0.20% 7.74%
Accounting Rate of Profit Excluding Network Revaluation 10.00% 10.99% 9.28% 8.12% 0.07%

Note: The Accounting Rate of Profit Excluding Network Revaluation is not required by the Gas (Information Disclosure) Regulations 1997. The figures in italics have been adjusted to exclude the subvention payment to WIDC and the resulting profit/lossed at 3xx% (2007: 33%). These have been provided for ease of comparison to previous financial years.

2. Efficiency Performance Measures

Reference 2011 2010 2009 2008 2007
Direct Line Costs per Kilometre Sch 1 Pt 2.2(a) $1,759 $1,711 $2,337 $2,016 $2,416
Indirect Line Costs per Gas Customer Sch 1 Pt 2.2(b) $95 $60 $82 $84 $73

3. Energy Delivery Efficiency Performance Measures

Reference 2011 2010 2009 2008 2007
Load Factor Sch 1 Pt 3.1(a) 86.93% 79.90% 60.70% 80.10% 79.50%
Unaccounted for Gas Ratio Sch 1 Pt 3.1(b) 1.25% 0.46% 1.18% 1.80% 1.60%

4. Statistics

Reference 2011 2010 2009 2008 2007
System Length (km) Sch 1 Pt 3.2(a) 387 386 384 366 365
Maximum Monthly Amount of Gas Entering System (GJ) Sch 1 Pt 3.2(b) 112,630 103,117 114,969 107,645 110,651
Total Annual Amount of Gas Conveyed through System (GJ) Sch 1 Pt 3.2(c) 1,174,868 1,094,641 961,694 1,034,057 1,055,279
Total Amount of Gas Conveyed through System for Persons not in a Prescribed Business Relationship (GJ/p.a) Sch 1 Pt 3.2(d) 952,193 742,414 514,632 542,065 534,798
Total Number of Customers Sch 1 Pt 3.2(e) 10,353 10,309 10,287 10,331 10,326

5. Reliability Performance Measures

Reference 2011 2010 2009 2008 2007
Unplanned Transmission System Interruptions (hours) Sch 1 Pt 4.1 nil nil nil nil nil
Unplanned Distribution System Interruptions not related to Transmission System Interruptions (hours/customer) Sch 1 Pt 4.2(a) 0.0127 0.2842 0.0253 0.018 0.0152
Unplanned Distribution System Interruptions related to Transmission System Interruptions (hours/customer) Sch 1 Pt 4.2(b) nil nil nil nil nil
Unplanned Distribution System Interruptions as a result of third party damage (hours/customer) 0.0076 0.0121 0.02 0.0116 0.0067
Unplanned Distribution System Interruptions not as a result of third party damage (hours/customer) 0.0051 0.0069 0.0058 0.0064 0.0085

Note: The last two performance measures are not required by the Gas (Information Disclosure) Regulations 1997.

  1. The increase in percentage is due to the revaluation carried out during the year.
  2. The increase in percentage is due to the revaluation carried out during the year and the reversal of the subvention payment.
  3. The increase in Unplanned Distribution System Interruptions not related to Transmission System Interruptions was due to water inundation outage in St Johns/Hill Wanganuui in late June 2010. This single significant event was caused by a leaking water pipe and contributed 0.225 hours/customer. Without that event the measure would have been 0.0295.
  4. The decrease is due to there being no significant interruptions to the network during 2010/2011.


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Online Sources for this page:

Gazette.govt.nz — PDF NZ Gazette 2011, No 187




✨ LLM interpretation of page content

💰 Statement of Performance Measures for the Year ended 30 June 2011 (continued from previous page)

💰 Finance & Revenue
Financial Performance, Efficiency Performance, Energy Delivery, Statistics, Reliability Performance, Gas (Information Disclosure) Regulations 1997