| Typical retail price | $7,260 |
| Out-of-pocket (after rebates) | $4,304 |
| Average annual savings | $2,028 |
| Typical payback | 2.1 years |
Solar in Koondrook, 3580
Koondrook 3580 is in Victoria (North West region), which sits in STC Zone 4 for the federal rebate scheme. Zone 4 is a typical federal rebate band.
On a 6.6 kW system, Koondrook households claim about $1,556 in federal STC rebate , plus up to $1,400 in VIC-specific programs. That's a combined $2,956 off the invoice for the typical home in this postcode.
Sunlight and generation in 3580
Sitting at roughly 35.6°S, Koondrook 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 9,379 kWh of generation a year (about 1,421 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 3580
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.
Solar Homes, Battery Loan
Victoria's interest-free battery loan closed to new applications in May 2025. Victoria has no state battery rebate; battery support is via the federal Cheaper Home Batteries Program only.
Full Victoria rebate breakdown →
How payback works for a Koondrook 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 $ 4,304, putting payback at 2.1 years.
That payback assumes a CEC-accredited tier-1 panel system (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 Koondrook rebate amount
Pre-filled with 3580. Hit submit to start the 30-second check.
How to get matched with a Koondrook installer
- 30-second eligibility check. Postcode 3580, ownership, bill range, roof type.
- Specialist follow-up within 24–48 hours. Australian, friendly, no high-pressure tactics.
- Match with one CEC-accredited installer who works 3580 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 Koondrook (3580)
What solar rebates can I claim in Koondrook (3580)?
Koondrook 3580 is in Victoria, which means you can claim the federal STC rebate (~$1,556 on a 6.6 kW system), plus VIC-specific programs worth up to about $1,400 more. 3580 sits in STC Zone 4, with a zone rating of 1.185.
How much does solar cost in Koondrook?
A typical 6.6 kW system in Koondrook costs about $7,260 retail. After the federal STC rebate ($1,556) and VIC state bonus ($1,400), the typical out-of-pocket is around $4,304.
Do you cover Koondrook (3580)?
Yes. We have CEC-accredited installer partners covering 3580 and surrounding suburbs in VIC. Run the 30-second eligibility check to confirm a specific installer for your roof type.
How long does payback take in Koondrook?
Typical payback in Koondrook is 2.1 years on a 6.6 kW system. Annual savings of about $2,028 on average VIC household electricity costs.
Federal solar rebates apply in 3580. Check your exact eligibility in 30 seconds, free and with no obligation.