| Typical retail price | $7,260 |
| Out-of-pocket (after rebates) | $4,314 |
| Average annual savings | $2,028 |
| Typical payback | 2.1 years |
Solar in St Helier, 3989
St Helier 3989 is in Victoria. The figures below use STC Zone 4 (rating 1.185), the zone the Clean Energy Regulator's postcode table gives postcode 3989 itself. Zone 4 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, St Helier households claim about $1,546 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 3989
Sitting at roughly 31.8°S, St Helier gets an estimated 4.2 peak sun hours a day averaged across the year. On a north-facing 6.6 kW system that works out to roughly 10,118 kWh of generation a year (about 1,533 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 3989
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 St Helier 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 $ 4,314, putting payback at 2.1 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 St Helier rebate amount
Pre-filled with 3989. Hit submit to start the 30-second check.
How to get matched with a St Helier installer
- 30-second eligibility check. Postcode 3989, 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 3989 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 St Helier (3989)
What solar rebates can I claim in St Helier (3989)?
St Helier 3989 is in Victoria, which means you can claim the federal STC rebate (~$1,546 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. 3989 sits in STC Zone 4, with a zone rating of 1.185.
How much does solar cost in St Helier?
A typical 6.6 kW system in St Helier costs about $7,260 retail. After the federal STC rebate ($1,546) and VIC state bonus ($1,400), the typical out-of-pocket is around $4,314.
Do you cover St Helier (3989)?
We match households in 3989 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 St Helier?
Typical payback in St Helier 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 3989. Check your exact eligibility in 30 seconds, free and with no obligation.