Solar Panels in O B Flat
SA · STC Zone 3 · 5.1 sun hrs/day
A 6.6 kW solar system in O B Flat produces around 10,443 kWh/yr, costs about $5,700 after the STC rebate, and pays back in roughly 3.7 years. Compare quotes from accredited local installers.
Solar in O B Flat, SA
O B Flat (5291) sits in STC Zone 3 and averages 5.1 peak sun hours per day. Rooftop solar is connected via SA Power Networks and exports earn a feed-in tariff around 5 c/kWh. For a typical 6.6 kW install, that works out to ~10,443 kWh/yr of generation and roughly $1,546 in combined bill offset and export credits each year.
| Location | O B Flat, SA (5291) |
|---|---|
| Distributor (DNSP) | SA Power Networks |
| STC rebate zone | Zone 3 |
| Avg peak sun hours | 5.1 hours/day |
| Typical 6.6 kW output | ~10,443 kWh/yr |
| Installed cost (6.6 kW) | ~$5,700 after STC rebate |
| Federal STC rebate | ~$2,706 off install |
| Typical feed-in tariff | 3–8 c/kWh (≈ 5 c/kWh used) |
| Est. annual savings | ~$1,546/yr |
| Payback period | ~3.7 years |
Solar system sizes & prices for O B Flat
Output and savings are estimated using O B Flat's 5.1 peak sun hours/day and 5 c/kWh feed-in tariff.
| System | Annual output | Installed (post-STC) | Est. annual savings | Best for |
|---|---|---|---|---|
| 6.6 kW | 10,443 kWh | ~$5,700 | $1,546/yr | Most popular AU system size — matches the 5 kW inverter rule and maximises STC rebate. |
| 10 kW | 15,823 kWh | ~$9,000 | $2,342/yr | For larger households (4–6 people) or homes with batteries planned. |
| 13.2 kW | 20,886 kWh | ~$11,400 | $3,091/yr | Large-roof / EV charging households. May need DNSP approval to export full output. |
Solar rebates for O B Flat households
Federal STC rebate
Small-scale Technology Certificates (STCs) are issued under the federal Renewable Energy Target. SA sits in Zone 3, worth about $2,706 off a 6.6 kW install. Your installer claims it on your behalf as a point-of-sale discount.
SA state programs
Home Battery Scheme (closed to new applications) — current support is the federal Cheaper Home Batteries Program. SA's high grid prices give solar the fastest payback in the country.
Solar battery storage in O B Flat
With grid power at ~33 c/kWh and O B Flat's feed-in tariff around 5 c/kWh, every kWh you store instead of export is worth an extra 28.0 c. The federal Cheaper Home Batteries Program (launched 2025) takes approximately 30% off battery installation costs, dramatically improving payback for SA households.
Solar in O B Flat — common questions
How much does solar cost in O B Flat?
A standard 6.6 kW solar system in O B Flat typically costs around $5,700 installed, after the federal STC rebate of approximately $2,706 (SA is in STC Zone 3). A 10 kW system runs about $9,000. Final price depends on roof complexity, inverter brand and panel quality.
How much energy will solar generate in O B Flat?
O B Flat averages around 5.1 peak sun hours per day, so a 6.6 kW system will produce roughly 10,443 kWh per year after performance losses. A 10 kW system produces around 15,823 kWh/yr.
What's the payback period for solar in O B Flat?
For a typical O B Flat household, a 6.6 kW system pays itself back in around 3.7 years — based on $5,700 installed, ~$1,546/yr in combined bill savings and feed-in credits, and a feed-in tariff of ~5 c/kWh on the SA Power Networks network.
What rebates apply to solar in SA?
O B Flat households can claim the federal Small-scale Technology Certificate (STC) rebate, worth approximately $2,706 on a 6.6 kW install in Zone 3. Home Battery Scheme (closed to new applications) — current support is the federal Cheaper Home Batteries Program. SA's high grid prices give solar the fastest payback in the country.
Who is the distributor for solar connections in O B Flat?
Solar installations in O B Flat connect to the grid via SA Power Networks. Your installer lodges the connection application and notifies the distributor of the export limit — no separate paperwork required from you.
Is a solar battery worth adding in O B Flat?
With O B Flat's feed-in tariff sitting around 5 c/kWh and grid power at ~33 c/kWh, storing solar instead of exporting it now pays back faster than it did when FiTs were higher. The federal Cheaper Home Batteries Program (launched 2025) takes ~30% off battery install cost, dramatically improving battery payback in SA.
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Indicative figures. Updated .