Household
Private owner
Suburb
Scarborough
System
13.2 kW + 13.5 kWh
Type
Three-phase
Year
2026
The Challenge
Two storeys, coastal salt and an east-west split roof that loses about 8% of output compared with north.
Our Approach
Thirty panels split across both faces on a 10 kW three-phase inverter, marine-grade rails, and a 13.5 kWh battery for the evening charge.
Outcome
The car now charges almost entirely from the roof and the household exports less than a third of its generation.
The system at a glance
13.2 kW
Solar on the roof
13.5 kWh
Battery
21,900 kWh
Generated in the first year
$3,410
Saved per year
Gallery
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