❓ WA parliamentary question regarding the proportion of energy generated by privately owned assets and distributed solar in Western Australia from 2014-15 to 2024-25, with a breakdown for the South West Interconnected System and statewide figures.
AnsweredQoN 1940Legislative Assembly
QuestionView source ↗
What proportion of energy in Western Australia was generated by privately owned generation assets in: (a) 2024-25; (b) 2014-15; and (c) each year between 2014-15 and 2024-25?
AnswerView source ↗
Answered
5 May 2026
Responded by
Minister for Energy and Decarbonisation
Response time
6 days
(a)-(c)
The table below shows the proportion of electricity generated by privately-owned generation assets in WA’s main electricity grid, the South West Interconnected System, in each financial year from 2014-15 to 2024-25.
14-15
15-16
16-17
17-18
18-19
19-20
20-21
21-22
22-23
23-24
24-25
Privately-owned generation
47%
47%
48%
51%
53%
55%
52%
47%
44%
49%
52%
Distributed solar
3%
4%
5%
6%
8%
9%
11%
13%
15%
16%
20%
The table below shows the proportion of electricity generated by privately-owned generation assets in Western Australia in each financial year from 2014-15 to 2023-24.
14-15
15-16
16-17
17-18
18-19
19-20
20-21
21-22
22-23
23-24
Privately-owned generation
73%
73%
74%
77%
79%
80%
79%
75%
75%
76%
Distributed solar
2%
2%
2%
3%
4%
4%
5%
6%
7%
8%
Note that statewide electricity generation data for 2024-25 is expected to be released by the Federal Department of Climate Change, Energy, the Environment and Water later in 2026.
The table below shows the proportion of electricity generated by privately-owned generation assets in WA’s main electricity grid, the South West Interconnected System, in each financial year from 2014-15 to 2024-25.
14-15
15-16
16-17
17-18
18-19
19-20
20-21
21-22
22-23
23-24
24-25
Privately-owned generation
47%
47%
48%
51%
53%
55%
52%
47%
44%
49%
52%
Distributed solar
3%
4%
5%
6%
8%
9%
11%
13%
15%
16%
20%
The table below shows the proportion of electricity generated by privately-owned generation assets in Western Australia in each financial year from 2014-15 to 2023-24.
14-15
15-16
16-17
17-18
18-19
19-20
20-21
21-22
22-23
23-24
Privately-owned generation
73%
73%
74%
77%
79%
80%
79%
75%
75%
76%
Distributed solar
2%
2%
2%
3%
4%
4%
5%
6%
7%
8%
Note that statewide electricity generation data for 2024-25 is expected to be released by the Federal Department of Climate Change, Energy, the Environment and Water later in 2026.
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