| Typical retail price | $7,260 |
| Out-of-pocket (after rebates) | $4,076 |
| Average annual savings | $2,028 |
| Typical payback | 2.0 years |
Solar in Koetong, 3704
Koetong 3704 is in Victoria (Hume region). The figures below use STC Zone 3 (rating 1.382), the zone the Clean Energy Regulator's postcode table gives postcode 3704 itself. That is a different band from Melbourne (Zone 4), because zones follow postcode ranges rather than state borders. 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, Koetong households claim about $1,784 in federal STC rebate , plus up to $1,400 from VIC's solar rebate if your household qualifies (at the 15 October 2026 price of $39.65 per STC).
Sunlight and generation in 3704
Sitting at roughly 36.1°S, Koetong gets an estimated 3.9 peak sun hours a day averaged across the year. On a north-facing 6.6 kW system that works out to roughly 9,286 kWh of generation a year (about 1,407 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 VIC.
VIC rebate programs that apply in 3704
Solar Homes, Solar Panel (PV) Rebate
Solar Victoria's flagship rebate cuts $1,400 off a new rooftop solar system at point of sale, with an optional matching interest-free loan of $1,400 repaid over 4 years (about $29 a month).
Solar Homes, Hot Water Rebate
Rebate on a heat-pump or solar hot-water system to replace a gas or electric storage unit. Stacks with the panel rebate within the household's annual cap.
Closed and no longer available: Solar Homes, Battery Loan.
Full Victoria rebate breakdown →
How payback works for a Koetong household
For an average VIC household with a quarterly electricity bill around $ 470, a 6.6 kW system typically saves about $2,028 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 $ 4,076, putting payback at 2.0 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 Koetong rebate amount
Pre-filled with 3704. Hit submit to start the 30-second check.
How to get matched with a Koetong installer
- 30-second eligibility check. Postcode 3704, 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 3704 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 Koetong (3704)
What solar rebates can I claim in Koetong (3704)?
Koetong 3704 is in Victoria, 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), plus up to $1,400 from VIC's solar rebate if your household qualifies. 3704 sits in STC Zone 3, with a zone rating of 1.382.
How much does solar cost in Koetong?
A typical 6.6 kW system in Koetong costs about $7,260 retail. After the federal STC rebate ($1,784) and VIC state bonus ($1,400), the typical out-of-pocket is around $4,076.
Do you cover Koetong (3704)?
We match households in 3704 and surrounding suburbs in VIC 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 Koetong?
Typical payback in Koetong is 2.0 years on a 6.6 kW system. Annual savings of about $2,028 on average VIC household electricity costs.
Federal solar rebates apply in 3704. Check your exact eligibility in 30 seconds, free and with no obligation.