| Typical retail price | $7,260 |
| Out-of-pocket (after rebates) | $5,476 |
| Average annual savings | $2,048 |
| Typical payback | 2.7 years |
Solar in Castambul, 5076
Castambul 5076 is in South Australia (Adelaide - North region). The figures below use STC Zone 3 (rating 1.382), the zone the Clean Energy Regulator's postcode table gives postcode 5076 itself. Zone 3 is a typical federal rebate band. Zone ratings run from 1.622 in Zone 1 down to 1.185 in Zone 4; see the STC calculator for the full table.
On a 6.6 kW system, Castambul households claim about $1,784 in federal STC rebate (at the 15 October 2026 price of $39.65 per STC).
Sunlight and generation in 5076
Sitting at roughly 34.9°S, Castambul gets an estimated 4.0 peak sun hours a day averaged across the year. On a north-facing 6.6 kW system that works out to roughly 9,530 kWh of generation a year (about 1,444 kWh per kW installed), before shading and panel orientation are factored in. It's one reason the payback maths below holds up for this part of SA.
Suburbs covered by postcode 5076
The 5076 postcode covers Castambul, Athelstone. We match households in every suburb in this postcode with one SAA-accredited installer.
SA rebate programs that apply in 5076
REPS Virtual Power Plant incentive
SA's Retailer Energy Productivity Scheme pays an incentive for connecting a battery (up to 28 kWh total capacity) to an approved VPP. General funding was exhausted in May 2026: for the rest of 2026 the incentive is available to priority-group households only, with new funding expected from early 2027. Eight approved VPPs operate in SA including AGL, Amber, Engie, Origin Loop and Powwow.
Switch for Solar trial
A trial that offered some Cost of Living Concession holders in selected areas a free solar system in exchange for forgoing the annual Energy Concession for 10 years. We could not confirm it is still taking applications (the SA Government page could not be loaded on 10 October 2026), so check its current status before relying on it.
Closed and no longer available: Home Battery Scheme.
Full South Australia rebate breakdown →
How payback works for a Castambul household
For an average SA household with a quarterly electricity bill around $ 477, a 6.6 kW system typically saves about $2,048 per year, combining bill offset (you import less) and feed-in credits (you export excess to the grid). Out-of-pocket cost after rebates is about $ 5,476, putting payback at 2.7 years.
That payback assumes a tier-1 panel system on the Clean Energy Council's approved list (Trina, REC, JA Solar or similar) with a Sungrow or Fronius inverter. Budget gear is 15-20% cheaper but the warranty is half as long and the inverter usually needs replacing at year 8-10, so the lifetime numbers are worse.
See your Castambul rebate amount
Pre-filled with 5076. Hit submit to start the 30-second check.
How to get matched with a Castambul installer
- 30-second eligibility check. Postcode 5076, ownership, bill range, roof type.
- Specialist follow-up within 24-48 hours. Australian, friendly, no high-pressure tactics.
- Match with one SAA-accredited installer who works 5076 and surrounding suburbs.
- Fixed-price quote with every rebate applied at the invoice.
- Install in 4-6 weeks. Single-day job. Rebate already on your invoice.
Common questions about solar in Castambul (5076)
What solar rebates can I claim in Castambul (5076)?
Castambul 5076 is in South Australia, which means you can claim the federal STC rebate (~$1,784 on a 6.6 kW system, at the 15 October 2026 price of $39.65 per STC). 5076 sits in STC Zone 3, with a zone rating of 1.382.
How much does solar cost in Castambul?
A typical 6.6 kW system in Castambul costs about $7,260 retail. After the federal STC rebate ($1,784), the typical out-of-pocket is around $5,476.
Do you cover Castambul (5076)?
We match households in 5076 and surrounding suburbs in SA with one SAA-accredited installer. Run the 30-second eligibility check to confirm the installer for your roof type.
How long does payback take in Castambul?
Typical payback in Castambul is 2.7 years on a 6.6 kW system. Annual savings of about $2,048 on average SA household electricity costs.
Federal solar rebates apply in 5076. Check your exact eligibility in 30 seconds, free and with no obligation.