Solar panels in Seven Hills

As an estimate, a 6.6kW system starts from $7,410, a 10kW system starts from $10,300 and a 13.2kW system starts from $11,250 (with battery prices starting from $4,290), with the STC discount for postcode 2147 already taken off (incl. GST for metro areas; regional areas subject to freight and travel costs). Those are starting estimates for a straightforward install, not a fixed price. Housing here is mostly single-storey brick and tile on regular blocks, which keeps installs simple; the usual addition is a switchboard upgrade on the older homes.

Seven Hills is in STC Zone 3, rating 1.382. In 2026 a 6.6kW system creates 45 certificates, worth roughly $1,710 off the price, and a 10kW system 69 certificates, roughly $2,622. The discount shrinks each January until the scheme ends in 2030, and the exact amount depends on the certificate market on your installation date.

It helps, and we would rather frame it carefully than quote you a percentage. A system on the roof is a genuine selling point — a lower running cost is easy for a buyer to understand, and it differentiates a house on a street of similar ones. What it is not is a dollar-for-dollar addition to the price the way a renovation might be, and any installer who tells you a specific uplift figure is guessing. The soundest way to think about it: solar pays you back through your own bills while you live there, and the residual value at sale is a bonus rather than the business case.

Keep the paperwork together from day one, because it is what makes the system look like an asset rather than an unknown. That means the installation and compliance documentation, the CEC-accredited installer details, the panel and inverter makes and models with their warranty terms, and the monitoring login. Warranties attach to the system and the property rather than to you personally, so they carry across — but a buyer can only value what they can see. We supply that pack at switch-on for exactly this reason.

Four things, in order. Whether there is documentation at all — no paperwork usually means no warranty you can rely on. The age of the inverter, because it is the part most likely to need replacing and it rarely lasts as long as the panels. Whether the monitoring still works and what it shows over a recent week, which tells you more than any statement from the vendor. And whether the system is actually connected and approved, which the retailer's bill will confirm through the feed-in credits. If any of that is missing we can inspect it before you commit.

The distribution network that owns the poles and wires in your street approves it — not your retailer — and we lodge the application for you. That network also decides how much your system may export: on a flexible export connection, eligible customers can send up to 10kW per phase back to the grid most of the time, while a fixed export limit caps exports at 1.5kW. When a property changes hands the system stays with the house, but the new owner sets up their own retail account and feed-in arrangement.

Yes. We cover the whole 2147 postcode — Seven Hills, Seven Hills West, Kings Langley and Lalor Park. The pricing, the process and the connection paperwork are the same right across it.