❓ A parliamentary question scrutinising the WA Residential Battery Scheme, focusing on the costs and requirements for AC-coupled battery installations in households with existing solar panels connected to the SWIS. The answer refers to previous questions.
AnsweredQoN 1260Legislative Council
QuestionView source ↗
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 (SWIS) under the Government’s floundering WA Residential
Battery Scheme, and I ask: (a) what proportion of residential
households serviced by Synergy in the SWIS receive AC electricity supply; (b) 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; (c) 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; (d) what percentage of residential
AC supply recipients in the SWIS who want to install a new solar panel and
battery system are installing a hybrid inverter; and (e) what is the average cost of an
inverter for a battery installed on an AC residential system and the cost of a
hybrid converter?
requirements and compliance costs for the connection of alternating current
(AC) coupled households proposing to install batteries to the South West
Interconnected System (SWIS) under the Government’s floundering WA Residential
Battery Scheme, and I ask: (a) what proportion of residential
households serviced by Synergy in the SWIS receive AC electricity supply; (b) 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; (c) 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; (d) what percentage of residential
AC supply recipients in the SWIS who want to install a new solar panel and
battery system are installing a hybrid inverter; and (e) what is the average cost of an
inverter for a battery installed on an AC residential system and the cost of a
hybrid converter?
AnswerView source ↗
Answered
14 April 2026
Responded by
Leader of the House representing the Minister for Energy and Decarbonisation
Response time
7 days
(a) – (c)
Refer to the answer provided in Legislative Council Question Without Notice 1043.
(d) – (e)
Refer to the answer provided in Legislative Council Question Without Notice 1063.
Refer to the answer provided in Legislative Council Question Without Notice 1043.
(d) – (e)
Refer to the answer provided in Legislative Council Question Without Notice 1063.
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