2716 NEW ZEALAND GAZETTE, No. 112 28 JULY 2005

(v) new requirement for system operator to
correctly apply constraints to SPD model; and
(vi) system operator required to advise participants
if it identifies new techniques to address
conflicts of interest.

(b) Requirement that the system operator maintains
voltage stability during and following a contingent
event or extended contingent event.

(c) Changes to the system operator’s requirements to
schedule sufficient reserve where there is insufficient
generation offers and/or reserve offers. Under these
circumstances, instead of reducing the reserve
requirements, the system operator will:

(i) zero the reserve requirement for a contingent
event; and
(ii) reduce demand for an extended contingent
event.

(d) Removal of the explicit margins added by the
system operator to reserve requirements. These
provisions have been replaced by an open provision
for the system operator to add an adjustment factor
based on its knowledge of the power system.

(e) New requirement for system operator to notify
an asset owner if it has provided incomplete or
unreliable asset capability information.

(f) Changes to demand step-change limits by purchasers.
Limits are now expressed as ramping limits (40 MW
per minute with no more than 75 MW in any
five-minute period). The system operator must
now advise the process by which a purchaser can
agree a greater limit and publish existing and new
agreements. The provision for the system operator to
change the step-change demand limits during the
term of the policy statement has been removed.

(g) Allowance for the system operator to use any other
measures that may mitigate the need to shed demand
to manage events greater than those provided for by
risk management policies.

(h) Rationalisation and clarification of the demand
shedding policy.

(i) Provision for dynamic load distribution factors to
be used in the dispatch schedule once the system
operator has implemented the software changes
required.

(j) Removal of system operator reporting requirements
to market administrator and the Electricity
Commission, which restate requirements set out
elsewhere in the Rules.

(k) Removal of provisions for the system operator to
investigate or support an investigation into an asset
owner’s non-compliance with the Rules, which
restate requirements set out elsewhere in the Rules.

(l) Requirement that anyone connecting local networks
in parallel with the grid to provide information
requested by the system operator including evidence
the grid owner has agreed to the parallel connection.

(m) Removal of specific future policy directions by
the system operator, which are the Electricity
Commission’s business.

(n) Requirement that the system operator produce a
business performance charter that describes the
manner in which the system operator intends to
deliver the system operator services under the Rules.

(o) Removal of part B explanatory notes from Schedule
C4, which are instead to be published on the system
operator’s web site.

4. Pursuant to section 172Z (4) of the Electricity Act 1992,
   the reasons for my decision to amend the Rules are that:

● the changes contained in the new Schedule C4
improve the policies and means by which the system
operator can comply with the principal performance
obligations and provide greater transparency and
clarity to participants as to the policies the system
operator intends to follow to meet the principal
performance obligations; and

● the new policy statement complies with the Rules.

5. These rules come into force on 25 August 2005.

6. Copies of the Rules may be inspected free of charge or
   purchased from the Electricity Commission, Level Seven,
   ASB Bank Tower, 2 Hunter Street, Wellington. The Rules
   can also be viewed on the Electricity Commission web site:
   http://www.electricitycommission.govt.nz/rulesandregs/rules

Dated at Wellington this 8th day of July 2005.

TREVOR MALLARD, Minister of Energy.
au4804

Land Transport New Zealand

Land Transport Rule: Traffic Control Devices 2004

Land Transport Rule: Traffic Control Devices 2004

– "Lane closed – centre lane, three lane, one way road" Traffic Sign

Pursuant to subclause 4.4 (4) of Land Transport Rule:
Traffic Control Devices 2004, and under authority delegated
to me, I, Peter Graeme Croft, Manager Networks, authorise
the installation and maintenance of the warning sign
described in the Schedule to this notice.

Schedule

W4-1.4 Lane closed – centre lane, three lane, one way road

Centre lane of three lanes stops ahead, traffic in centre lane
move to left or right lane (as appropriate)

Shape and Size:

Rectangle 750 x 750mm

Background:

White (R)

Border:

Black 25mm

Legend:

Note: The dimensions, descriptions and terms contained
in this notice conform to the opening notes of Schedule
I, Land Transport Rule: Traffic Control Devices 2004.

Dated at Wellington this 20th day of July 2005.

PETER GRAEME CROFT, Manager Networks.
au4766