Over 24,000 solar systems are registered across the Shire’s postcodes, and more than 4,500 home batteries have gone in since July 2025. We design and install both, with our own licensed team, from Menai and Engadine to Cronulla and Kurnell.
Based in Peakhurst, just over the Georges River from the Shire.
Free site assessment and written quote. Just your address and a recent electricity bill to start. No obligation.
Sydney Air & Solar handles solar panel installation and battery installation in every Sutherland Shire suburb, including Sutherland, Miranda, Caringbah, Gymea and Jannali. We work on houses and townhouses, add batteries to existing solar, and plan for coastal salt air and tree shade. Our own SAA accredited crew does every job, Monday to Friday.
The Sutherland Shire is one of the most solar-dense parts of Sydney. For every 100 houses across its postcodes there are about 40 registered solar systems, and in Menai, Illawong and Barden Ridge the figure passes 50. If you are thinking about solar or a battery, a fair share of your street has already done it.
As solar installers we use our own crew, not subcontractors, and every system is tailored to your roof, your electricity bill and your energy needs. The business is family-owned and has run since 2000. Founder Alex Arnautovic is a licensed electrician and SAA designer who spent 16 years maintaining Qantas aircraft.
Solar systems registered in Shire postcodes
Home batteries installed since July 2025
Average new solar system in the last 12 months
Figures from the Clean Energy Regulator’s postcode data, set against the number of houses and townhouses in each postcode at the 2021 Census. Solar counts every system registered since 2001, so a home that upgraded counts twice; read it as how common solar is, not as an exact share of homes.
| Postcode | Suburbs | Solar systems | Per 100 houses | Batteries since Jul 2025 | Average battery |
|---|---|---|---|---|---|
| 2234 | Menai, Illawong, Bangor, Alfords Point, Barden Ridge | 4,893 | 51 | 959 | 30.5 kWh |
| 2233 | Engadine, Heathcote, Yarrawarrah | 3,940 | 44 | 686 | 28.3 kWh |
| 2232 | Sutherland, Kirrawee, Kareela, Loftus, Grays Point | 3,261 | 38 | 639 | 29.3 kWh |
| 2229 | Caringbah, Taren Point, Lilli Pilli | 2,902 | 33 | 510 | 29.1 kWh |
| 2230 | Cronulla, Woolooware, Burraneer, Bundeena | 2,509 | 43 | 420 | 28.7 kWh |
| 2228 | Miranda, Yowie Bay | 1,655 | 33 | 292 | 30.9 kWh |
| 2226 | Jannali, Como, Bonnet Bay | 1,606 | 41 | 315 | 29.1 kWh |
| 2227 | Gymea, Gymea Bay | 1,432 | 32 | 294 | 29.4 kWh |
| 2224 | Sylvania, Sylvania Waters | 1,410 | 31 | 296 | 32.5 kWh |
| 2225 | Oyster Bay | 692 | 41 | 141 | 33.1 kWh |
| 2231 | Kurnell | 358 | 46 | 36 | 31.8 kWh |
Source: Clean Energy Regulator, small-scale installation postcode data to August 2026; Australian Bureau of Statistics (ABS) Census 2021. Updated quarterly.
Postcode 2234 has the most solar systems and the most batteries in the Shire, around 10 batteries for every 100 houses. Only 2% of homes there are units, so nearly every household has a roof of its own.
More than half the homes in 2230 are units, yet the postcode still has 43 solar systems for every 100 houses. The houses there use solar as much as anywhere in the Shire.
A new system in the Shire over the last year averaged 11.2 kW. Across all years the average is under 8 kW. If your system is ten or more years old, it is often much smaller than a new one, which matters if you plan to add a battery.
The federal Cheaper Home Batteries discount started in July 2025. From 1 May 2026 it pays less for each kilowatt-hour above 14 kWh, and the Shire’s numbers show the change clearly.
average battery, 3,765 installed
average battery, 823 installed
People rushed to install large batteries before the rate dropped, then sizes came back down. The most recent months will still grow as late registrations come in, but the drop in size is already clear.
So size a battery to your evening use, not to the rebate. A 13.5 kWh battery still gets the full rate on every kilowatt-hour. A 40 kWh battery bought for the rebate now earns much less on the top half, and many households would rarely fill it.
The timing matters. The battery rebate is fixed on the day the battery is installed. From 1 January 2027 the same battery earns about 16% less. If a battery is already in your plans, it is worth having the assessment done this year.
Cronulla, Kurnell, Sylvania Waters, Bundeena and the Port Hacking foreshore get salt spray. We use Schletter rails and stainless fixings, and we check the panel and inverter installation manuals for coastal limits before we specify.
Parts of Engadine, Heathcote, Jannali and Bonnet Bay have big gums over the roof. Where shade moves across the array, we use Enphase microinverters so one shaded panel does not pull down the rest.
Menai, Illawong and Barden Ridge are almost all detached Sutherland Shire homes. Homes with a pool, ducted air conditioning or an EV are where a 10 kW system and a battery usually earn their keep.
If you live in a unit in Cronulla, Miranda or Sutherland, solar depends on the strata. Talk to us before the strata meeting and we can tell you what is practical for your building.
We keep a short list and know it well.
Running a business or adding an EV? We also handle commercial solar and EV charger installation.
Shire homes get the same rebates as the rest of Sydney. We claim them for you and take them off the invoice.
Written workmanship warranty of up to 10 years, on top of the manufacturer warranties.
Accreditation: our designers and installers hold Solar Accreditation Australia (SAA) accreditation, which replaced Clean Energy Council (CEC) installer accreditation in May 2024, and we are a NETCC approved solar retailer.
Paperwork we handle: the STC and battery rebate claims, the grid connection application and network approval, and the electrical compliance certificate. What you see in your quote is the price after the rebate.
And your address for a solar quote. We look at your usage and your roof from the satellite view.
Panel layout, battery size, rebates already deducted, one price.
Our own crew, usually one day for solar, half a day for an add-on battery.
We connect the app, show you what everything does and lodge the grid connection with Ausgrid.
Reviews from our solar, battery and air conditioning customers across southern and eastern Sydney.
We’ve used Aleks and team at two different homes and have referred him to many friends, family and neighbours. Prompt, efficient, safe and tidy. The team are lovely and Aleks goes above and beyond to help clients. Great company!
We engaged Alex and the team to replace a failed ducted aircon, and took the opportunity to install solar at the same time.
The process from inspection and advice, through to specification and quoting…
If you are considering a Solar System , do yourself a favour and talk to Sydney Air and Solar.
From the first part of the process it was made extremely easy to understand all of the options available and what would occur…
Yes. We are local solar installers for Sutherland Shire homeowners across the Shire, in every suburb, from Menai, Illawong and Engadine in the west to Cronulla, Kurnell and Bundeena in the east. We work Monday to Friday from our base in Peakhurst.
About 24,700 solar systems are registered in the Shire’s postcodes, roughly 40 for every 100 houses. Menai and Illawong (2234) have the highest rate, above 50.
New systems in the last 12 months averaged 11.2 kW. Most family homes land between 6.6 and 10 kW; the right system size depends on your electricity bill, not your roof area.
For most homes with solar and high evening use, yes. A battery stores excess solar energy from the day for the evening. Around 4,600 Shire homes added a battery between July 2025 and August 2026. Since 1 May 2026 the rebate pays less above 14 kWh, so size the battery to your evening use.
Yes. We use Schletter rails with stainless fixings and choose equipment rated for coastal sites. Salt spray is a reason to choose parts carefully, not a reason to skip solar.
Sometimes. It depends on the strata and the roof. Send us your building details and we will tell you whether it is practical before you go to the strata committee.
On most homes, no. Rooftop solar is exempt development under the NSW Transport and Infrastructure SEPP 2021. If your home is a heritage item or sits in a heritage conservation area, panels on the roof facing the street need sign-off from Sutherland Shire Council first. We check this before we quote.
Menai · Illawong · Bangor · Alfords Point · Barden Ridge · Engadine · Heathcote · Yarrawarrah · Sutherland · Kirrawee · Kareela · Loftus · Grays Point · Gymea · Gymea Bay · Miranda · Yowie Bay · Caringbah · Taren Point · Lilli Pilli · Cronulla · Woolooware · Burraneer · Bundeena · Sylvania · Sylvania Waters · Jannali · Como · Bonnet Bay · Oyster Bay · Kurnell
Tell us your address and send a recent power bill if you have one. We look at your roof, your switchboard and your usage, then send a written proposal. No obligation. We reply within one to two business days.
Prefer to talk? Call 1300 725 426, Monday to Friday.
