Residential Battery Scheme—Hybrid converter 1043. Hon Dr Steve Thomas to the Leader of the House representing the Minister for Energy and Decarbonisation: I refer to the government's requirements and

AnsweredQoN 1043Legislative Council
Asked
13 November 2025
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Energy and Decarbonisation

QuestionView source ↗

Residential Battery Scheme—Hybrid converter
1043. Hon Dr Steve Thomas to the Leader of the House
representing the Minister for Energy and Decarbonisation:
I refer to the
government's requirements and compliance costs for the connection of
alternating current (AC) coupled households proposing to install batteries to
the South West Interconnected System under the government's floundering WA Residential
Battery Scheme.
(1)
What proportion of residential households serviced by Synergy in the SWIS
receive AC electricity supply?
(2)
What percentage of residential AC supply recipients in the SWIS who want to
install a battery in a system that already has solar panels installed will be
required to also install a separate inverter to that battery in addition to the
existing inverter for the solar panels?
(3)
What percentage of residential houses connected to the SWIS have existing
hybrid inverters connected to solar panels that comply with the government's
requirements and will not need upgrading when a battery is installed?

AnswerView source ↗

I thank the
honourable member for some notice of the question.
(1)
It is 100%.
(2)
It is 0%.
(3)
It is not possible to provide a specific percentage as all inverters, both
hybrid and non-hybrid, are highly variable.

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