2021 Investor Day Presentation
513.0
516.0
wet-T
uel-6
17-Jan
25-Jan
519.0
level (masi]
2-Feb
10 Feb
18-Feb
26-Feb
522.0
6-Mar
14-Mar
22-Mar
Meridian.
525.0
528.0
531.0
534.0
Pukaki Lake Level
1999-2021
Lake Pūkaki low range operation
◉
Since April 2020, the full Lake Pūkaki storage range has been included in our modelling and forecasting
Including the contingent storage allows a greater use of flexibility in the main range which can be seen in
the forecast distribution
Contingent storage is also included in the Electricity Risk Curves, increasing the margin
Storage maintained above 518m historically
WOE
7-Apr
15-Apr
23-Apr
NEWT
News
17-May
25-May
un-2
10-Jun
18-Jun
26-Jun
4-Jul
12-Jul
n-02
int-sz
ny-5
13-Aug
21-Aug
29-Aug
6-Sep
14-Sep
22-Sep
30-Sep
8-Oct
120-9T
24-Oct
AON-T
9-Nov
17-Nov
25-Nov
3-Dec
11-Dec
19-Dec
27-Dec
MG
20121
LPC Forecast Pūkaki Storage Spaghetti
historical mean without 2,200
contingent storage
2,000
1,800
2001
2003
forecast mean with
2001
1,600
2004
contingent storage
200036
200
2001
2014
2011
3012
2013
3014
Pukaki Storage (GWh)
1,400
1,200
1,000
800
600
stoc
A 518.2m
2018
2017
400
AA 516.4m A
200
3019
0
Source: Meridian
08-Feb-211
Operational Storage
08-Apr-21
08-Jun-21
11 MAY 2021
08-Aug-21-
08-Oct-21-
08-Dec-21-
08-Feb-22-
08-Apr-22-
08-Jun-22-
08-Aug-22-
08-Oct-22
Discretionary Storage
Individual Hyd Sequence
Forecast Mean
History
<---8-Mar-21
08-Dec-22-
08-Feb-23-
2021 INVESTOR DAY PRESENTATION
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