28 JANUARY 2008

NEW ZEALAND GAZETTE, No. 11

MATTERS RELATING TO THE PUBLICATION OF THE AUDITED PERFORMANCE MEASURES
IN THE NEW ZEALAND GAZETTE

This audit report relates to the performance measures of Northpower Limited for the year ended 31 March 2007 that have
been published in the New Zealand Gazette. The New Zealand Gazette is required to publish hard copies of audited
performance measures and the related audit report of Northpower Limited for the year ended 31 March 2007, and to include
an electronic version of the published New Zealand Gazette on the New Zealand Gazette’s website.

We have not been engaged to report on the integrity of the performance information of Northpower Limited that have been
published on the New Zealand Gazette’s website. We accept no responsibility for any changes that may have occurred to the
performance information since they were initially signed and published.

This audit report refers only to the performance information named above. If readers of this audit report are concerned with
the inherent risks arising from electronic data communication, they should refer to the original signed and published hard copy
of the audited performance information and related audit report dated 20 December 2007 to confirm the information included
in the audited performance information published in the New Zealand Gazette or on the New Zealand Gazette’s website.

Legislation in New Zealand governing the preparation and dissemination of financial information may differ from legislation in
other jurisdictions.

281

AUDIT NEW ZEALAND

AUDITOR-GENERAL’S OPINION ON THE
PERFORMANCE MEASURES OF NORTHPOWER LIMITED

We have examined the information on pages 10, 17 and 18, being –

(a) the derivation table in requirement 15;

(b) the annual ODV reconciliation report in requirement 16;

(c) the financial performance measures in clause 1 of Part 3 of Schedule 1; and

(d) the financial components of the efficiency performance measures in clause 2 of Part 3 of Schedule 1, –

that were prepared by Northpower Limited and dated 20 December 2007 for the purposes of the Commerce Commission’s Electricity Information Disclosure Requirements 2004.

In our opinion, having made all reasonable enquiry, and to the best of our knowledge, that information has been prepared in accordance with those Electricity Information Disclosure Requirements 2004.

F Caetano
Audit New Zealand
On behalf of the Auditor-General
Auckland, New Zealand
20 December 2007

MATTERS RELATING TO THE PUBLICATION OF THE AUDITED PERFORMANCE MEASURES
IN THE NEW ZEALAND GAZETTE

This audit report relates to the performance measures of Northpower Limited for the year ended 31 March 2007 that have been published in the New Zealand Gazette. The New Zealand Gazette is required to publish hard copies of audited performance measures and the related audit report of Northpower Limited for the year ended 31 March 2007, and to include an electronic version of the published New Zealand Gazette on the New Zealand Gazette’s website.

We have not been engaged to report on the integrity of the performance information of Northpower Limited that have been published on the New Zealand Gazette’s website. We accept no responsibility for any changes that may have occurred to the performance information since they were initially signed and published.

This audit report refers only to the performance information named above. If readers of this audit report are concerned with the inherent risks arising from electronic data communication, they should refer to the original signed and published hard copy of the audited performance information and related audit report dated 20 December 2007 to confirm the information included in the audited performance information published in the New Zealand Gazette or on the New Zealand Gazette’s website.

Legislation in New Zealand governing the preparation and dissemination of financial information may differ from legislation in other jurisdictions.