Territory Stories

Annual power system review : December 2007

Details:

Title

Annual power system review : December 2007

Collection

Power system review; Reports; PublicationNT

Date

2007

Notes

Cover title.; Made available via the Publications (Legal Deposit) Act 2004 (NT).

Language

English

Subject

Electric utilities -- Northern Territory -- Periodicals; Power resources -- Northern Territory -- Periodicals

Publisher name

Northern Territory. Utilities Commission

Place of publication

Darwin

Copyright owner

Northern Territory. Utilities Commission

Parent handle

https://hdl.handle.net/10070/230641

Citation address

https://hdl.handle.net/10070/670850

Page content

2007 Power System Review Page 5 Utilities Commission December 2007 2.17 At N-1, reserve conditions are adequate over the medium term period. However, based on the Commissions demand forecasts, additional capacity is required in this financial year in order to satisfy the N-2 reserve standard. Tennant Creek regulated system 2.18 At both the N-1 and N-2 reserve standards, capacity in Tennant Creek remains adequate but tight over the medium term period. Generation capacity in the longer term 2.19 For the period 2011-12 to 2016-17, the Commission has assessed the requirement for new capacity by comparing its baseline capacity projection with high and low growth demand scenarios. 2.20 The high demand growth scenario assumes demand growth of 4% per annum in Darwin-Katherine, 3.5% in Alice Springs and 3% in Tennant Creek. The comparable rates in the low demand growth scenario are 2%, 1.5% and 0% respectively. 2.21 For each scenario, the additional capacity required to satisfy the N-1 and N-2 reserve standard has been calculated. Darwin-Katherine regulated system 2.22 Under the high demand growth scenario, the N-1 standard is met for most of the period. However, the reserve margin is almost fully eroded by 2015-16, indicating that additional capacity is required prior to 2015-16 in order to satisfy the N-1 reserve standard. Approximately 60MW of additional capacity is required to satisfy the N-2 standard over the period 2.23 Under the low demand growth scenario, the N-1 standard is comfortably met for the entire period, and the additional capacity required to meet the N-2 standard falls to 19MW. Alice Springs regulated system 2.24 In the Alice Springs system, under the high demand growth scenario, capacity is adequate but tight at the N-1 reserve standard for the period. At the N-2 reserve standard, capacity is adequate for the beginning of the period. However, the margin is fully eroded by 2014-15, indicating that additional capacity is required prior to 2014-15 in order to satisfy the N-2 reserve standard. By 2016-17, the shortfall totals 6MW. 2.25 Under the low demand growth scenario, reserve conditions are adequate at N-1 for the period. At N-2, reserve conditions are adequate but tight for the period. Tennant Creek regulated system 2.26 In the Tennant Creek system, under the high demand growth scenario, the projected capacity is sufficient to meet both the N-1 and N-2 reserve standards for the period. 2.27 Under the low demand growth scenario, capacity is also adequate at both the N-1 and N-2 reserve standards for the period.


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