Solar Inverter Service
Inverter Replacement & Upgrade
Professional swap, repair and hybrid upgrades by SAA accredited electricians.
Your inverter converts DC power from solar panels into AC power for your home. When it fails, stops exporting, or reaches end of life, you need a fast, safe replacement by a licensed professional. We assess on-site, provide a written quote itemising equipment and labour, install with full testing, and leave you with warranty documents and proof of work.
⏳ Deadlines
- Cheaper Home Batteries steps down in 66 days (1 January 2027)About $252/kWh for the first 14 kWh, $151/kWh to 28 kWh and $38/kWh to 50 kWh (2026 rate) Source: DCCEEW Cheaper Home Batteries, from 1 May 2026 · checked 2026-10-16
- STC discount on new solar shrinks in 66 days (1 January 2027)about 20% less than this year (one fewer deeming year) Source: Clean Energy Regulator (small-scale technology certificates) · set by law
Why inverter replacement matters.
A dead inverter means zero solar output and no grid export revenue. Without professional diagnosis, you might replace the wrong component or buy an incompatible unit, wasting time and money. A fast, accredited replacement restores your system and keeps you protected by warranty.
Choosing an unaccredited contractor risks electrical safety, voids manufacturer support and may breach your state's electrical regulations. A licensed, SAA accredited electrician ensures the job meets safety standards, includes proper testing and isolation, and gives you audit-proof documentation.
What this covers
- 01
String Inverter Replacement
Swap a failed or aging string inverter with a new unit matched to your panel array. Typical cost $1,500–$2,800. Includes disconnection, testing, mounting and grid re-connection.
- 02
Hybrid Inverter Upgrade
Replace a string inverter with a hybrid model to add battery storage later. Typical cost $2,200–$3,800. Includes new wiring, control module setup and safety certification.
- 03
Microinverter Replacement
Replace one or more failed microinverters on individual panels. Typical cost $1,500–$2,200 per unit, plus labour. Useful if only one inverter has failed and others are working.
- 04
Warranty Claim Support
We lodge and manage manufacturer warranty claims for defective inverters. Saves you paperwork and may reduce labour costs if the unit is covered. Includes proof of installation and test reports.
- 05
Inverter Monitoring & Troubleshooting
Remote and on-site diagnostics to confirm inverter failure versus a simple error. May avoid unnecessary replacement. Includes written fault report and repair recommendation.
How inverter replacement works: the step-by-step process.
Step 1 — Assessment. Your installer visits and inspects the failed inverter, checks panel output, tests electrical isolation and reviews your system design. They photograph the site, note roof access, cable runs and any upgrades needed (such as new switchboard connections for a hybrid). This takes 30–60 minutes.
Step 2 — Written Quote. You receive an itemised quote that lists the inverter model and warranty, labour rate and hours, electrical work, testing, travel, and GST. A good quote also outlines site risks (e.g. roof height, cable rerouting) and the timeline. No work starts without your signed approval.
Step 3 — Supply & Installation. On the agreed date, the electrician isolates your system safely, removes the old inverter, installs and wires the new unit, and connects it to your switchboard or hybrid battery controller. All cables are checked for damage and replaced if needed.
Step 4 — Testing & Handover. The installer runs a full safety test (earth leakage, voltage output, grid synchronisation), prints test reports, and shows you how to monitor the new inverter via an app or web portal. You receive the warranty certificate, test report and proof of work.
What affects inverter replacement cost in your area.
Inverter size and type: A 5 kW string inverter ($1,500–$2,000) costs less than a 10 kW hybrid inverter ($3,000–$4,200). Microinverters are priced per unit and scale with the panel count. Premium brands (Fronius, SMA, Tesla Powerwall) carry higher upfront cost but longer warranty and better resale value.
Site access and height: A replacement on a single-storey home with easy roof access costs less labour than a multi-storey building, steep pitch or obstructed installation. Coastal suburbs with salt-laden air may require corrosion-resistant cabling, adding materials cost.
Electrical upgrades: If your switchboard is full or outdated, adding a sub-board or isolator may be required by your state regulator. This adds $400–$1,200. If moving to a hybrid, you may need new conduit, isolators and DC safety switches.
Warranty and support: Accredited installers often include on-site commissioning, monitoring setup and 2–5 years workmanship warranty. Budget $200–$500 for extended support or remote monitoring add-ons.
Urgency and distance: If you need same-day or weekend work, labour rates may increase by 20–40%. Installers outside your postcode may charge travel costs; confirm before booking.
Brand availability: Some inverters require lead time (2–4 weeks). If you need a quick swap, the installer may fit an equivalent in stock, which may cost more or less depending on current pricing.
Pricing guide
How much does inverter replacement cost in Australia?
Inverter replacement typically ranges from $1,500 to $4,200 per unit. Cost depends on inverter size and brand, installation complexity, site access, electrical upgrades, location and urgency. Get a written, itemised quote that separates equipment, labour, testing and travel; this lets you compare fairly and avoid hidden charges.
- Inverter brand, model and warranty period
- System size (kW) and type (string, hybrid, microinverter)
- Roof pitch, access difficulty and site safety conditions
- Switchboard upgrades, isolator installation or recabling
- Your postcode and distance from the installer's base
- Urgency (same-day, weekend or after-hours work may cost more)
| Job type | Low | Typical | High |
|---|---|---|---|
| 5 kW string inverter (single-storey, accessible) | $1,500 | $1,900 | $2,400 |
| 8–10 kW string inverter (multi-storey or complex wiring) | $2,000 | $2,600 | $3,200 |
| Hybrid inverter upgrade (5–8 kW, battery-ready) | $2,200 | $3,200 | $4,200 |
| Microinverter replacement (per unit, labour included) | $800 | $1,100 | $1,500 |
If you are upgrading from a string to a hybrid inverter and adding battery storage later, you may be eligible for the Cheaper Home Batteries Program (from 1 July 2025). The 2026 subsidy is approximately $252/kWh for the first 14 kWh, $151/kWh from 14–28 kWh, and $38/kWh from 28–50 kWh. Confirm current amounts with your state energy agency or the Department of Climate Change, Energy, Environment and Water.
Typically included
- On-site or remote assessment of the failed inverter and system
- Written, itemised quote with equipment, labour and testing fees
- Supply of the agreed new inverter with manufacturer warranty
- Installation and wiring by a licensed, SAA accredited electrician
- Full safety testing (earth leakage, voltage, grid synchronisation)
- Handover with warranty certificate, test report and proof of work
Often excluded
- New solar panels or battery storage (quoted separately if needed)
- Major switchboard replacement or electrical code upgrade beyond the inverter connection
- Ongoing monitoring or extended remote support (optional add-on)
- Removal and disposal of the old inverter (may incur a separate e-waste recycling fee)
Do not attempt to replace an inverter yourself. High-voltage DC lines and grid-connected AC circuits pose serious electrical and fire risk. Always hire a licensed electrician with SAA accreditation. Confirm current accreditation requirements with your state regulator before work begins.
Questions to ask every installer
- 1Is the electrician SAA accredited and licensed in my state? Ask to see current accreditation and licence before booking.
- 2Will you provide a written, itemised quote? Avoid anyone who quotes verbally or over the phone without a site visit.
- 3What is included in the price? Confirm equipment, labour, testing, travel and warranty are all listed separately.
- 4How long is the workmanship warranty, and what does it cover? Check whether it includes labour and parts, and how to claim.
- 5Can you manage my warranty claim if the inverter is still under manufacturer cover? Ask about their process and timeline.
Local solar data
How much power does solar make in Victoria?
Each kW of panels in Victoria makes about 1,366 kWh a year (Melbourne data). That means a 6.6kW system makes around 9,016 kWh a year, or about 25 kWh on an average day. Melbourne averages 4.8 peak sun hours a day.
Figures use PVWatts modelling for a north-facing (south-facing in the northern hemisphere) roof at 20°. Your actual output depends on shade, roof direction and the panels you choose.
| City | Network | kWh per kW a year | Sun hours a day | Grid price per kWh | Yearly saving, 6.6kW |
|---|---|---|---|---|---|
| Melbourne VIC | — | 1,366 | 4.76 | — | — |
Incentives that apply in Victoria
National · battery
Cheaper Home Batteries
About $252/kWh for the first 14 kWh, $151/kWh to 28 kWh and $38/kWh to 50 kWh (2026 rate)
Battery 5–100 kWh, able to join a VPP, connected to rooftop solar
Source: DCCEEW Cheaper Home Batteries, from 1 May 2026 · checked 2026-10-16
National · solar
Small-scale Technology Certificates (STCs)
Upfront discount: kW × zone multiplier × deeming years × STC price
Systems up to 100kW installed by an SAA-accredited installer
Source: SRES: zone multiplier × 5-year deeming × $38 per STC · checked 2026-10-16
VIC · hot water
Solar Victoria hot water rebate
up to $1,400 locally made, $1,000 other
Same $150,000 income cap
Source: Solar Victoria, from 1 July 2026 · checked 2026-10-16
VIC · solar
Solar Victoria panel rebate
up to $1,400
Combined household income $150,000 or less
Source: Solar Victoria, from 1 July 2026 · checked 2026-10-16
Sources: PVWatts v8 (north-facing 20°, 14% losses, nearest station) · SRES: zone multiplier × 5-year deeming × $38 per STC · DCCEEW Cheaper Home Batteries, from 1 May 2026 · Solar Victoria, from 1 July 2026
Brands we install
Brands we install
Ask us about current stock and warranty terms for each brand.
- Panels
- JinkoTrinaLONGiAikoRECCanadian SolarSunPower (Maxeon)
- Inverters
- FroniusSungrowSolarEdgeEnphaseGoodWeHuawei
- Batteries
- Tesla PowerwallSigenergyBYDAlpha ESSEnphase IQ BatterySungrow SBRFranklinWH
Solar designed around your situation
Which situation best suits you?
What is an inverter and why does it fail?
How much does a solar inverter replacement cost in Australia?
Do I need an SAA accredited electrician?
Will I get an STC rebate for inverter replacement?
Can I use the Cheaper Home Batteries rebate for a hybrid inverter?
How long does an inverter replacement take?
What warranty do I get on a new inverter?
What if my replacement is a warranty claim?
Get a written inverter replacement quote today.
Call for a same-day or next-day site visit from an SAA accredited electrician.