Solar panels in Windsor

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 2756 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. Two things move the number around here more than elsewhere: an older switchboard, and the cable run on a larger block where the house, the shed and the meter are not close together.

Windsor 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. It is a discount applied at the point of sale, not a grant you apply for afterwards. Being on flood-prone land does not change it — the certificates depend on system capacity and postcode, nothing else.

No. Rooftop solar on a house is normally straightforward work that does not need council approval, and that does not change because the block floods. What flooding changes is the part of the job at ground and wall level: where the inverter sits, where a battery sits, and how quickly the system can be isolated. Those are design decisions made at the assessment, not reasons to go without a system. If you want the specifics for your own address, your council can issue a flood advice certificate that states the flood planning level for the property — worth having before anyone mounts equipment on a wall.

As high as the installation sensibly allows, and out of the western sun. An inverter is wall-mounted equipment, so the height it goes at is a choice someone makes on the day — and the difference between mounting it at waist height and mounting it well above the flood planning level is a few hundred millimetres of wall and no extra cost. Batteries are the same argument with more money attached. If you are on land that has been through 2021 and 2022, tell us at the assessment and we will design to it rather than leaving it to the installer's habit.

The panels and rails are usually the part you keep — they sit above anything the river has reached. Inverters and batteries are different: water inside one is a replacement, not a dry-it-out repair, and anything that has been submerged stays off until a licensed electrician has tested the installation and signed it off. Do not re-energise a system yourself because the sun is out and the display looks normal. If you are an existing customer in this situation, call us and we will come and test it, including systems we did not install.

We are not insurers, so treat this as the question to ask rather than the answer. Two things are worth confirming in writing with yours: whether your policy includes flood at all, since it is often a separate inclusion rather than automatic, and whether a rooftop system is insured as part of the building rather than as contents — because if it is, the number that matters is your building sum insured, and it may not have moved since before you had a system. Ring them with the system size and what it cost.

Yes — the whole 2756 postcode, including the acreage. On a larger property the thing that changes the quote is distance: a system on the house is ordinary work, while powering a shed, a pump or a second dwelling means a cable run that has to be sized properly and priced honestly. Ground-mounted arrays are also treated differently from roof panels, so if that is what you have in mind say so early. Our Glenmore Park page goes into the acreage and cable-run side in more detail.

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. An export limit caps what you send back, not what you generate or use in the house, which is why self-consumption is worth more than it looks.