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SA Banker’s Briefing on the MDB
Prof. Mike Young
Research Chair, Water Economics and ManagementThe University of AdelaideSA Banker’s Briefing,
Friday 15th June 2007
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Caveat
This is presentation is offered by an independent observer who is not fully informed, who does not have access to all the information necessary to make reliable predictions about the future and who has no training in the provision of financial advice.
Before making any decisions associated with investments reliant upon the health or otherwise of the River Murray, independent advice as to the State of the River Murray and likely nature of government policy decisions pertaining to this resource should be obtained.
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Total Murray-Darling Basin inflows Annual flows (year ending June) showing forecast for 2006/07
Source: Craik, MDBC
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Impacts of drought on average seasonal irrigation allocations
Entitlement 2006 2001-2005 Long term
NSW HS ~ 60% ~ 97% 97%
NSW GS 0% ~ 63% 85%
Vic WR
Murray
95% ~ 96% 100%
Vic Sales 0% ~ 45% 76%
SA ~ 60% ~ 70% >99%
Source: Craik, MDBC
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River Murray inflowsAverage and Selected Years
Source: Craik, MDBC
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River Murray System Cumulative Inflows
2007 to date compared to 2006
Source: Craik, MDBC
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Murray System Total Storage June 2000 to May 2007
with indicative outlook to end September 2007
0
1000
2000
3000
4000
5000
6000
7000
8000
9000
10000
Jun-
00
Dec
-00
Jun-
01
Dec
-01
Jun-
02
Dec
-02
Jun-
03
Dec
-03
Jun-
04
Dec
-04
Jun-
05
Dec
-05
Jun-
06
Dec
-06
Jun-
07
En
d o
f M
on
th S
tora
ge
(GL
)
Total Storage
Long Term Average Total Storage
Maximum Possible Total Storage
Source: Craik, MDBC
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Modelled outlookTotal MDBC storage
0
1000
2000
3000
4000
5000
6000
7000
8000
9000
10000
100% 95% 90% 85% 80% 75% 70% 65% 60% 55% 50% 45% 40% 35% 30% 25% 20% 15% 10% 5% 0%
Probability of Exceedance
To
tal
Sto
rag
e (
GL
)Current June 2007 Forecast
Current November 2007 Forecast
Current May 2008 Forecast
Modelled Current Conditions Values : Long Term Average Values are marked with
Minimum Values are marked with
Total Capacity
Source: Craik, MDBC
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Rainfall outlook3 months June – August 2007
Source: Craik, MDBC
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Temperature Outlook3 months June – August 2007
Source: Craik, MDBC
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BOM Outlook
•Current ENSO conditions neutral
•All 6 international models predict a La Nina in 2007
=> Higher than average rainfall over winter/spring
Source: Craik, MDBC
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Indicative Water
Availability
in 07/08
Current estimate of
water availability
Low Reserves Remain- 'Normal' Sharing Arrangements- Reserves may remain depleted- Consider building strategic reserve for 2008/09- Effective markets
Transition Zone- transition back to normal water sharing arrangements- limited 2007/08 allocations
Special Arrangements- Normal Agreement sharing suspended- Don’t get 1850 GL to SA- Contingency Measures Required- Carryover able to be progressively allocated- Markets limited
Contingency Arrangements- Repeat 2006/07 inflows - Normal Agreement sharing suspended- Contingency Measures Required- Markets inoperableSource: Craik, MDBC
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Water accounting bottom lines
At 1850 GL, SA is nearly over-allocated!
Evaporative losses ~1100 - 1300 GL
Urban and industrial allocation 650/5 = 130 GL
Irrigation ~ 500 GLA bit for the Coorong and to flush salt ~ 120 GL
Total ~1850 - 2050 GL
Options under worse case scenario
1. Close parts of the system (Lower Lakes, Bonney & wetlands)
2. Lower the River (but salinity)
3. Empty Snowy (very expensive)
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Policy recommendations
1. Any announcement made must be bankable
2. Speedy, unrestricted basin-wide trading
3. Put Adelaide on tougher restrictions
4. Unrestricted carry-forward
5. Govt. buy-up and lease back for two years to resolve over-allocation
6. Don’t invest in subsidised infrastructure upgrades until we see how the system responds to less water
7. New agreement and new governance system
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Contact:
Prof Mike YoungWater Economics and ManagementEmail: [email protected]: +61-8-8303.5279Mobile: +61-408-488.538 www.myoung.net.au
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Lake Alexandrina Level: Forecasting from 12 June 2007
-2.2-2.1
-2-1.9-1.8-1.7-1.6-1.5-1.4-1.3-1.2-1.1
-1-0.9-0.8-0.7-0.6-0.5-0.4-0.3-0.2-0.1
00.10.20.30.40.50.60.70.80.9
1
08/06 09/06 10/06 11/06 12/06 01/07 02/07 03/07 04/07 05/07 06/07 07/07 08/07 09/07 10/07 11/07 12/07 01/08 02/08 03/08 04/08 05/08 06/08 07/08 08/08 09/08 10/08 11/08 12/08
Date (month/year)
Wat
er L
evel
(m A
HD
)
_
Level w ith Mean Evaporation/Rainfall Conditions
Level w ith Maximum Net Evaporation (1982) Conditions
Level w ith 90th Perc. Evaporation / 10th Perc. Rainfall Conditions
Observed Low er Lakes Levels
Minimum Level for Metro Adelaide pumping after pumps are low ered (-1.5m AHD)
PROJECTION ONLY
Prepared by DWLBC
Forecasting Assumptions (MDBC w ater year - June to May)Flow : Flow to SA at 1470 GL 2006/07, 487 GL 2007/08, 537GL 2008/09
Diversions:Metro Adelaide (210 GL/yr 2006/07, 95 GL 2007/08, 145GL 2008/09)Country Tow ns / Other S&D (43 GL/yr 2006/07, 50 GL/yr 2007/08, 2008/09)AOP + LMS at 60% for 2006/07 (372GL), 0% for 2007/08, 2008/09
Wetlands: Area of connected w etlands d/s Lock 1 reduced by 50%30GL of reduced loss from w etlands u/s Lock 1