Dr. Steve Thomas questions the Minister for Water regarding the energy sources used by the Perth Seawater Desalination Plant (PSDP) from 2017-18 to 2022-23, specifically the proportions from gas, coal, and liquid fuels. The answer provides a breakdown of the SWIS energy mix, deferring to the Minister for Energy for specifics on PSDP's direct energy purchases.

AnsweredQoN 933Legislative Council
Asked
20 August 2024
Portfolio
Water

QuestionView source ↗

PERTH SEAWATER DESALINATION PLANT
933. Hon Dr STEVE THOMAS to the parliamentary secretary
representing the Minister for Water:
I refer to my questions without
notice 663, 457 and 616 of May and June 2024 for which the answers admitted
that, in the six years from 2017–18 to 2022–23 inclusive, no
renewable energy had been used in the Perth seawater desalination plant and
only 47 178 carbon credits had been purchased. For each of the years above,
what percentage of energy purchased for the PSDP was purchased from gas
generation, coal generation and liquid fuels?

AnswerView source ↗

I thank the honourable member for
some notice of the question, which was redirected to the Minister for Water. I answer
on the minister's behalf. The Minister for Water has provided the
following response.
Electricity
for the PSDP was supplied from the south west interconnected system, SWIS.
While the proportion of the supply from gas, coal and liquid fuels is a question
for the Minister for Energy, the table below provides a breakdown of the SWIS in the years 2017–18 to 2022–23
as per the member's question. Although renewable energy is not
directly purchased, renewable energy makes up the rest of the grid supply
through the SWIS.
The rest of the
answer is in tabular form and I seek leave to have the response incorporated
into Hansard .
[Leave granted for the following
material to be incorporated.]
� Financial
Year
Proportion of WEM electricity from coal
Proportion of WEM electricity from gas
Proportion of WEM electricity from liquid fuels
FY18
47%
39%
0.01%
FY19
42%
39%
0.02%
FY20
39%
39%
0.02%
FY21
36%
33%
0.03%
FY22
37%
28%
0.03%
FY23
27%
38%
0.03%

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