Solar Panels in Mount Charles
SA · STC Zone 3 · 5.1 sun hrs/day
A 6.6 kW solar system in Mount Charles 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 Mount Charles, SA
Mount Charles (5267) 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 | Mount Charles, SA (5267) |
|---|---|
| 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 Mount Charles
Output and savings are estimated using Mount Charles'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 Mount Charles 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 Mount Charles
With grid power at ~33 c/kWh and Mount Charles'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 Mount Charles — common questions
How much does solar cost in Mount Charles?
A standard 6.6 kW solar system in Mount Charles 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 Mount Charles?
Mount Charles 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 Mount Charles?
For a typical Mount Charles 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?
Mount Charles 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 Mount Charles?
Solar installations in Mount Charles 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 Mount Charles?
With Mount Charles'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 .