Solar panels in Bossley Park

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 2176 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. Around here the size is usually the real question rather than the extras: a full household, a second fridge or freezer in the garage, and often a granny flat out the back all add up, and a 6.6kW system that suits a couple will not carry that load.

Bossley Park 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 13.2kW system 91 certificates, roughly $3,458. 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 depends entirely on the meters, and that is the first thing to check. If the granny flat runs off the main house's switchboard and there is one meter for the property, then yes — one system feeds everything, and it is the simplest and cheapest arrangement. If the secondary dwelling has its own meter and its own retail account, it is a separate customer to the network: solar on the main roof cannot legally supply it, and you would need either a separate system for the flat or a change to how the property is metered. Neither is unusual, but they are very different quotes, so we establish which one you have before designing anything.

Usually, and this postcode is where that shows up most. A multi-generational home runs loads all day rather than only at the ends of it — cooking, laundry, air-conditioning in more than one room, two fridges, sometimes a second kitchen. That is a better match to solar than a house that is empty from eight until six, because more of what you generate is used on site instead of exported for a low feed-in rate. It is the argument for 10kW or 13.2kW rather than 6.6kW, and it is an argument from your own bill, which is why we ask for one.

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. If your property has two dwellings on separate meters, each connection is treated on its own.

Usually not. In NSW most rooftop solar on a house is exempt development, so it does not need a development application from Fairfield City Council. That applies to a granny flat roof as well as the main house. The exceptions are the usual ones — heritage items and heritage conservation areas — and we check that before we quote.

Yes. We cover the whole 2176 postcode, including Edensor Park, St Johns Park, Abbotsbury, Greenfield Park, Wakeley. The pricing, the process and the connection paperwork are the same right across it.