Solar on a new build in Melbourne
The cheapest time to add solar is while the house is going up. Here's how it fits the 7-star rules, what happens at each build stage, and how to plan a battery from day one.
Updated November 2026 · Litmec Electrical, REC-10383
New Victorian homes have had to meet 7-star energy efficiency and a whole-of-home energy budget since 1 May 2024. Rooftop solar can count toward that budget, which is why many energy reports call for it.
Wiring for solar and a battery is best done at frame stage, before plaster. Panels go on once the roof is finished, and the system is switched on after the home's power is connected.
What happens at each stage
- Plans: we size the system from your plans and energy report, ready for an all-electric home.
- Frame stage: our electricians run the cables for the panels, inverter and battery inside the walls, so nothing is surface-mounted later.
- Lock-up and roof: panels go on once the roof is complete.
- Power connected: the system is commissioned and your meter set up for solar.
Working with your builder
We only need your builder's OK and site access. Your contract for the solar is with Litmec, separate from the build contract, and we coordinate timing with the site supervisor.
Plan the battery now, even if you buy it later
A hybrid inverter, a battery location that meets AS/NZS 5139, and the cabling and switchboard space for it cost little at frame stage and a lot afterwards.
Rebates
Homes under construction can be eligible for the Solar Victoria rebate if the owner meets its criteria, and certificates apply as usual. How the rebates work.
Related
Already in a home? Check your bill
Building? Send your plans with the new-build form instead. Already living in a home you want solar on? Check your bill here.
Building a new home? Skip the bill and send us your plans
Questions
Do new homes in Victoria need solar panels?
Solar is not mandatory, but since 1 May 2024 new homes must meet 7-star efficiency and a whole-of-home energy budget, and rooftop solar is a common way to meet it. Check your energy report.
When should solar be installed on a new build?
Wiring at frame stage, panels after the roof is finished, and switch-on once the home's power is connected.
Can I get the Solar Victoria rebate on a house under construction?
Possibly, if the owner meets Solar Victoria's eligibility criteria. Check the current rules at solar.vic.gov.au.
Check it on your roof
One minute online, then a free visit from a licensed electrician who checks your roof and switchboard.