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Parliamentary Questions


Question On Notice No. 1303 asked in the Legislative Council on 10 May 2018 by Hon Peter Collier

Question Directed to the: Minister for Regional Development representing the Minister for Water
Parliament: 40 Session: 1


Question

(1) What is the average cost, per kilolitre, for the Perth Seawater Desalination Plant for the following years:
(a) 2017-2018;
(b) 2018-2019;
(c) 2019-2020; and
(d) 2020-2021?
(2) What is the average cost, per kilolitre, for the Southern Seawater Desalination Plant for the following years:
(a) 2017-2018;
(b) 2018-2019;
(c) 2019-2020; and
(d) 2020-2021?
(3) What is the forecasted output of the Southern Seawater Desalination Plant for the following years:
(a) 2017-2018;
(b) 2018-2019;
(c) 2019-2020; and
(d) 2020-2021?

Answered on 28 June 2018

(1)(a)-(d) The operating cost is estimated to be $0.62/kL. The total unit cost, taking into consideration construction costs and conveyance infrastructure, makes the total cost of desalinated water to be approximately $2 - $3/kL.

(2)(a)-(d) The operating cost is estimated to be $1.01/kL The total unit cost, taking into consideration construction costs and conveyance infrastructure, makes the total cost of desalinated water to be approximately $2 - $3/kL.

(3)(a) 103 GL.
(b)-(d) Production is reviewed annually based on inflows to dams and expected customer demand.