Solar in Sydney: yields, networks and what's actually different here

The resource: what a Sydney roof actually yields

Sydney's solar resource is excellent by world standards - a well-oriented, unshaded system here typically produces around 3.8-4.2 kWh per kilowatt per day averaged across the year, which is the figure behind the indicative generation numbers on our packages page. For context, that's roughly a third more than the numbers German systems are built on, in the country that pioneered rooftop solar.

Seasonality is real but gentler than people expect: summer days produce substantially more than winter ones, but Sydney winters are sunny enough that systems keep working meaningfully year-round - which is why we size against shoulder seasons rather than January.

Orientation: north is best, west is underrated

North-facing roof is the textbook answer and still the yield king. But pure yield isn't the goal - matching generation to usage is. West-facing arrays produce later into the afternoon, exactly when households come home and time-of-use peak pricing begins, so a north-west split frequently beats an all-north design on actual bill savings. East catches the morning; south is the only orientation we'll genuinely talk you out of in most cases.

This is precisely the kind of trade a real design weighs and a brochure can't.

Your network: Ausgrid or Endeavour

Sydney splits between two Distribution Network Service Providers - broadly, Ausgrid across the eastern, northern and inner metro, Endeavour Energy through Western Sydney and beyond. Your network, not your retailer, approves your connection and sets your export limit (commonly around 5 kW per phase today), and both are progressively rolling out flexible-export connections under CSIP, where limits become dynamic.

Practical implication: the grid application comes first in a properly run project, and system design respects your specific network's current rules - one of the checks in our site check before anything is priced.

Sydney-specific design realities

Tile roofs dominate large parts of Sydney's housing stock, which changes installation method and makes spare tiles worth locating before install day. Two-storey homes are common and add access requirements. Older suburbs carry older switchboards - the upgrade question is a Sydney staple and should be answered at design time, not on the day. And coastal corridors warrant attention to salt-rated components and mounting.

None of these are problems; all of them are inputs. They're why two identical bills in different suburbs can deserve different systems.

Putting it together

Sydney combines strong yields, mature network processes and the full national incentive stack - it's genuinely one of the best big cities on earth to own a roof in. The design tool applies these local figures to your actual address and usage; the site check confirms the physical details. Between them, the Sydney-specific questions get answered before your quote, which is where they belong.