Solar Panels Lake Grace
Lake Grace sits in STC Zone 4 (standard) with 5.4 peak sun hours per day. Around 29% of homes in the area have rooftop solar, with 22 CER-registered installations across 1 postcode.
Western Australia. 3 suburbs across 1 postcode.
One Why Solar Approved installer, one free written quote, and fifteen minutes with a solar expert before you sign.

- Peak sun hours
- 5.4 hrs/day
- STC zone
- Zone 4
- Solar homes
- ~29%
- STC rebate (6.6kW)
- $1,482
Solar in Lake Grace
5.4 peak sun hours daily
A 6.6kW system in Lake Grace generates around 35.6 kWh on a clear day and approximately 11,022 kWh per year, enough to cover most of an average household's electricity use.
Zone 4 (standard) STC rebate
A 6.6kW system in Lake Grace qualifies for an estimated $1,482 in federal Small-scale Technology Certificates. A 13.2kW system qualifies for around $2,964.
Network operators: Western Power, Horizon Power
Lake Grace is served by Western Power and Horizon Power, who manage grid connection approvals, solar export limits, and smart meter upgrades for the area.
Lake Grace solar rebates
Federal STC rebate
Lake Grace is in STC Zone 4 (standard). The federal Small-scale Technology Certificate scheme reduces the upfront cost of every eligible solar installation automatically through your installer.
- 6.6kW system
- $1,482
- 13.2kW system
- $2,964
Western Australia rebates
Western Australia offers state-level solar and battery incentives for eligible homeowners across Lake Grace and the wider state.
- Solar rebate
- None
- Battery rebate
- $1,300
Suburbs in Lake Grace
- Hatter Hill
- Lake King
- Mount Madden
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