Securing your future water needs: Harnessing carryover and other water products

By John Paulet & Rob O'Connor | Published On: 4 May 2021

30 April 2021

Key messages:

  • Last summer’s La Nina reduced irrigation demand
  • The MDBA active storage is at 45% (this time last year active storage was at 27%)
    • Other storages are generally at or above average
  • The Bureau of Meteorology climate forecast is currently neutral for the next 3 months (anything could happen in terms of rainfall and inflows)
  • Major Victorian High Reliability water shares are expected to reach 100% in 2021-22 under average or wetter inflow scenarios
  • Currently, around 500 GL is held in privately owned allocation accounts in the Victorian Murray system and about 500GL in the Goulburn system
  • Approximately 650 GL likely to be carried over in the NSW Murray system and 565 GL in the Murrumbidgee system
  • A Carryover Calculator is available for Victorian water systems to explore your unique on-farm carryover scenarios

A table that summarises carryover rules for major entitlement types in the sMDB is below:

Entitlement type Carryover highlights
Vic High Reliability up to 100%, 5% loss, subject to spill risk, returned after declaration
Vic Low Reliability up to 100%, 5% loss, not subject to spill risk*
NSW Murray General Security up to 50%, no loss, forfeit future allocation above 110%
NSW M’bidgee General Security up to 30%, no loss, forfeit future allocation above 100%

*unless there is water allocated onto this entitlement

  • When looking to secure water for the future, consider:
    • Goals for the water secured – such as providing a low-cost input for annual crops versus security for perennial plantations
    • Access to capital
    • Exposure to risk such as the volume that could be allocated to you in a season, the market spot price and the potential for disputes
  • Options to secure water include:
    • Permanent entitlement or water shares
    • Entitlement lease
    • Forward allocation contracts (including options)
    • Temporary allocation market
    • Carryover (“parking” or using your own space)
    • Other options that can be negotiated between a buyer and a seller
  • Each option has its own benefits and risks
  • Generally, using a combination of the above options is the best strategy.

For more information, watch the webinar recording above or view the webinar slides (PDF, 2MB).