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Solar systems

Solar and battery packages for Melbourne homes

Our solar and battery packages for Melbourne homes come complete and installed: solar panels, an inverter that runs the panels and the battery, and a home battery. Single phase homes choose from 6.6kW to 19.8kW of solar with a 12.8 kWh battery; three phase homes from 15kW to 28kW with 16 kWh or more.

Federal rebates come off the price: up to about $4,800 on the 6.6kW package in most of Melbourne, at $38 per STC. Sizes from 5kW to 20kW are compared below.

Updated

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Every federal rebate your home qualifies for, applied before you see a price.

0485 000 015sales@solarinstallations-melbourne.com.au

Single or three phase

Choose your package

Don’t know what phase you are? Read this guide →

Electrical phase

Pick your power supply, then compare its three packages. The table under the cards lists every specification side by side; your saving and payback are worked out from your own bills in your quote.

6.6kW Solar system with 12.8kWh Battery

Your saving

Worked out for your home and bills in your quote

6.6kW Solar + 12.8kWh Battery

  • 16x choice of solar panels
  • 9,319 kWh generated per year
  • 5kW Hybrid Inverter
  • All Inclusive
15kW Solar system with 12.8kWh Battery

Your saving

Worked out for your home and bills in your quote

15kW Solar + 12.8kWh Battery

  • 34x choice of solar panels
  • 20,750 kWh generated per year
  • 10kW Hybrid Inverter
  • All Inclusive
19.8kW Solar system with 12.8kWh Battery

Your saving

Worked out for your home and bills in your quote

19.8kW Solar + 12.8kWh Battery

  • 45x choice of solar panels
  • 24,936 kWh generated per year
  • 10kW Hybrid Inverter
  • All Inclusive
Single Phase packages, full specifications. Yearly generation is modelled with PVGIS for Mount Waverley (panels facing north at 20°, 14% losses), capped hour by hour at the inverter’s rating (a hybrid can send some of the excess to its battery, so real output can be a little higher). Your saving is worked out in your quote; all savings and production indications are approximations and results will vary for your property.
Single Phase6.6 kW + 12.8 kWh15 kW + 12.8 kWh19.8 kW + 12.8 kWh
Solar6.6 kW15 kW19.8 kW
Panels16 panels (about 413 W each)34 panels (about 441 W each)45 panels (about 440 W each)
Inverter5 kW hybrid inverter10 kW hybrid inverter10 kW hybrid inverter
Battery12.8 kWh12.8 kWh12.8 kWh
Yearly generation (modelled)9,319 kWh20,750 kWh24,936 kWh
15kW Solar system with 16kWh+ Battery

Your saving

Worked out for your home and bills in your quote

15kW Solar + 16kWh+ Battery

  • 36x choice of solar panels
  • 21,291 kWh generated per year
  • One three phase inverter
  • All Inclusive
21kW Solar system with 16kWh+ Battery

Your saving

Worked out for your home and bills in your quote

21kW Solar + 16kWh+ Battery

  • 51x choice of solar panels
  • 29,807 kWh generated per year
  • One three phase inverter
  • All Inclusive
28kW Solar system with 16kWh+ Battery

Your saving

Worked out for your home and bills in your quote

28kW Solar + 16kWh+ Battery

  • 68x choice of solar panels
  • 39,742 kWh generated per year
  • One three phase inverter
  • All Inclusive
Three Phase packages, full specifications. Yearly generation is modelled with PVGIS for Mount Waverley (panels facing north at 20°, 14% losses), before any inverter limit, as the inverter size is confirmed at quote. Your saving is worked out in your quote; all savings and production indications are approximations and results will vary for your property.
Three Phase15 kW + 16 kWh+21 kW + 16 kWh+28 kW + 16 kWh+
Solar15 kW21 kW28 kW
Panels36 panels (about 417 W each)51 panels (about 412 W each)68 panels (about 412 W each)
InverterOne three phase inverterOne three phase inverterOne three phase inverter
Battery16 kWh or larger16 kWh or larger16 kWh or larger
Yearly generation (modelled)21,291 kWh29,807 kWh39,742 kWh

Blackout backup, monitoring and room to add battery capacity later depend on the inverter and battery chosen for your home, so your written quote lists what your design includes.

Installing for a business? See commercial solar.

Single phase or three phase?

Your home’s power supply decides which list to choose from. Three phase homes can go bigger because Victoria’s networks pre-approve up to 30 kW of inverter across three phases, against 10 kW on single phase.

Your meter box shows which supply you have: many digital meters are marked 1P or 3P. How to tell single from three phase

Three phase inverters and batteries

What size solar system do you need?

Size it by the power your household uses, not by the roof: divide the kWh on your bill by the days it covers, and compare that daily use with a package’s yearly generation (in the spec tables above) divided by 365. A June day makes about 56% of that average, and the roof’s space and direction set the upper limit.

Work out your system size

Other common system sizes, 5kW to 20kW

Our single phase packages jump from 6.6kW to 15kW. The table shows what the other sizes people ask about need in Melbourne (panels, roof area and inverter) and what they make in a year.

Panels at 435 to 475 W from the makers’ datasheets in our solar panel guide; area is the panels alone. Output: PVGIS (checked October 2026), north-facing, before any inverter limit. Inverter: the 75% minimum without a battery in the SAA Technical Requirements (version 1.9, February 2026). Market price: Solar Choice Price Index, October 2026, Melbourne average installed after STCs, solar only, standard then premium offer. Market data, not our price; the index has no figure for the other sizes here.
SystemPanelsSolar a yearSmallest inverter, no batteryPower supplyMarket price
5 kW
The 5kW system
11 to 12 about 22 to 25 m²About 7,097 kWh 19 kWh a day3.75 kWSingle or three phase$5,140 premium $5,970
8 kW17 to 19 about 34 to 38 m²About 11,355 kWh 31 kWh a day6 kWSingle or three phaseNot in the index
10 kW
The 10kW system
22 to 23 about 44 to 48 m²About 14,194 kWh 39 kWh a day7.5 kWSingle or three phase$8,920 premium $10,410
12 kW26 to 28 about 52 to 57 m²About 17,032 kWh 47 kWh a day9 kWSingle or three phaseNot in the index
13.2 kW28 to 31 about 56 to 63 m²About 18,736 kWh 51 kWh a day9.9 kWSingle or three phaseNot in the index
19.8 to 20 kW
Our single phase package
Three phase solar
42 to 46 about 84 to 95 m²About 28,104 to 28,387 kWh 77 to 78 kWh a day14.85 to 15 kWThree phase, or single with a batteryNot in the index

Apart from 19.8kW, none of these is one of our packages; your quote confirms the size that fits your roof.

8kW and 12kW solar systems

An 8kW system makes about 11,355 kWh a year and a 12kW system about 17,032 kWh. Both fit single phase without a battery: they need 6 and 9 kW of inverter, under the 10 kW limit.

13kW and 13.2kW solar systems

Without a battery, a 10 kW single phase inverter takes up to about 13.3 kW of panels, so 13.2kW is about the most a single phase home can have without one: about 28 to 31 panels making about 18,736 kWh a year. Going bigger on single phase means connecting a battery, as our 15kW single phase package does. On three phase, a 13kW or 13.2kW solar system fits well inside the 30 kW limit.

The Melbourne figures below are before any inverter limit: PVGIS doesn’t model the inverter, and our hour-by-hour cap runs don’t include 13 or 13.2 kW. On a 10 kW inverter, 13.2 kW of panels is 132% of its rating, so it trims a little on the brightest hours, less than the 2.5% a year 15 kW loses on the same inverter. Installed in 2026, 13.2 kW creates 78 STCs in zone 4 (most of Melbourne) or 91 in zone 3 (some northern and western suburbs): up to about $3,000 or $3,500.

Output: PVGIS, Mount Waverley, Melbourne, north at 20°, before any inverter limit (checked October 2026). STCs: kW × zone rating × 5 years for an install in 2026, as in our STC calculator. Inverter: SAA’s 75% minimum without a battery.
SystemPanelsSolar a yearA June daySmallest inverter, no batterySTCs, zone 4 / zone 3
13 kW28 to 30 about 56 to 61 m²About 18,452 kWh 51 kWh a dayAbout 28 kWh9.75 kW single or three phase77 / 89
13.2 kW28 to 31 about 56 to 63 m²About 18,736 kWh 51 kWh a dayAbout 29 kWh9.9 kW single or three phase78 / 91

20kW solar systems with battery storage

A 20kW array needs at least 15 kW of inverter without a battery, more than single phase allows, so it suits three phase homes, where our packages come in 21kW and 28kW. Our 19.8kW single phase package uses a 10 kW hybrid inverter with its battery connected, which SAA allows only within the inverter maker’s panel limit. The inverter caps its output at about 24,936 kWh a year, against 28,104 kWh uncapped. Your quote names the inverter and its panel limit.

The price index stops at 10 kW, so there is no market figure for 20kW. In most of Melbourne, STCs take up to about $4,500 off the solar part this year (at $38 per STC), and we give you a fixed price after a free inspection.

For a business roof, see commercial solar.

The 5kW solar system

The 10kW solar system

The 15kW solar system

Three phase solar

What’s in every package

Every solar panel system we install comes as a complete package:

  • Solar panels: a choice of panels for each package size. Solar panels compared
  • Inverter: a 5 kW or 10 kW hybrid inverter in the single phase packages, and one three phase inverter in the three phase packages. How solar inverters work
  • Battery: 12.8 kWh (single phase) or 16 kWh and up (three phase). Batteries we install
  • Monitoring and backup: what your design includes depends on the inverter and battery, so your quote names the monitoring app and which circuits, if any, stay on in a blackout.
  • Installation and paperwork: the install, connection, network approval and rebate paperwork are all included.

Your written quote names the panel, inverter and battery models and their warranties.

Hybrid solar systems: every package is one

A hybrid solar system runs the solar panels and a home battery through one hybrid inverter. It turns the panels’ power into power the home can use, charges the battery with the solar the home isn’t using, and runs the home from the battery after dark, then from the grid once the battery is empty. Every package on this page is a hybrid solar power system: the inverter listed under “What’s in every package” runs both its panels and its battery. How hybrid inverters work

Hybrid doesn’t mean off-grid: the home stays connected, and solar the home can’t use and the battery can’t store is exported, up to your network’s export limit. In Melbourne a June day makes only about 56% of the year’s average day, so the battery fills less often in winter than from spring to autumn.

Turning the solar you have into a hybrid system

Swapping the old inverter for a hybrid one that takes the panels and a battery (DC coupling) makes an existing system a hybrid one. The other way keeps the inverter you have and puts the battery on its own inverter beside it (AC coupling): panels and a battery again, but on two inverters instead of one. Which suits depends on the inverter you have. AC vs DC coupled batteries

Whether the battery pays depends on your evening use, your feed-in rate and the rebate.

Are solar batteries worth it?

Package prices after rebates

A solar and battery package price depends on your roof, your switchboard and the panels you choose, so we give you a fixed price in writing after a free inspection, with every rebate below already taken off.

Get a fixed price

The federal rebates come off every package: STCs on the solar panels and the Cheaper Home Batteries discount on the battery.

Federal rebates for a system installed in May–December 2026 in a zone 4 postcode (most of Melbourne). Dollar figures use $38 per STC, the top of the $33–$38 the Clean Energy Regulator says agents usually pay, so treat them as a ceiling. Zone 3 postcodes get more for the panels. Batteries are counted at 12.8 or 16 kWh, and the full panel array is counted; your quote confirms the final figure.
PackageSolar STCsBattery STCsFederal rebates, about
6.6kW solar + 12.8kWh battery
Single phase
3987$4,800
15kW solar + 12.8kWh battery
Single phase
8887$6,700
19.8kW solar + 12.8kWh battery
Single phase
11787$7,800
15kW solar + 16kWh+ battery
Three phase
88103$7,300
21kW solar + 16kWh+ battery
Three phase
124103$8,600
28kW solar + 16kWh+ battery
Three phase
165103$10,200

Rebate calculator

STC calculator

Solar panel cost guide

Battery cost guide

Ways to pay

Solar only, a battery later, or an extension

Solar without a battery

Every package includes a battery, but you can ask for a solar-only quote. A hybrid inverter keeps the option open: the battery can be added later without changing the panels.

Adding a battery later

A home that already has solar can add a battery in either of the two ways under hybrid solar systems. The federal battery rebate gets smaller on 1 January 2027 and every six months after that until the end of 2030, so the same battery gets less help the longer you wait. Battery installation

Extending an existing system

If your solar no longer keeps up with your bills, we can add panels to it or replace it. What fits depends on the inverter’s spare capacity and the roof left, which we check on site. Extending or replacing an old system

Solar systems: your questions

What is a solar and battery package?

Solar panels, an inverter that runs the panels and the battery together, and a home battery, sold and installed as one system with one quote. The install, the network connection and the rebate paperwork are part of it, and the federal rebates for the panels and the battery come off the one price. What’s in every package

How much power does an 8kW solar system make in Melbourne?

About 11,355 kWh a year with the panels facing north, or around 31 kWh a day on average; a June day makes about 56% of that average. An 8kW system takes 17 to 19 panels of 435 to 475 W and needs at least 6 kW of inverter without a battery, so it fits a single phase home. Work out your system size

Why does a 13.2kW solar system suit a single phase home?

It is close to the most solar a single phase home can connect without a battery. Victoria’s networks pre-approve inverters up to 10 kW on single phase, and SAA’s rules need the inverter to be at least 75% of the panels’ power when no battery is connected: 75% of 13.2 kW is 9.9 kW. Other common system sizes

How much does a 20kW solar system with battery storage cost?

It depends on the battery, the inverter and whether your home is single or three phase, so we give you a fixed price after a free inspection. The Solar Choice Price Index stops at 10 kW, so there is no market figure for 20 kW. In most of Melbourne, STCs take up to about $4,500 off the solar part of a 20 kW system installed in 2026, and the battery rebate comes off the battery. Three phase solar and batteries

Can I start with solar only and add the battery later?

Yes. Ask for a solar-only quote with a hybrid inverter, and the battery can be added later without changing the panels. The federal battery rebate gets smaller on 1 January 2027 and every six months after that until the end of 2030, so a battery added later gets a smaller rebate than the same battery installed now. Battery installation

Choosing a package for your Melbourne home

Two things about your Melbourne home narrow the packages down. The first is your meter box. All five networks (AusNet Services, CitiPower, Jemena, Powercor and United Energy) approve up to 10 kW of inverter as a basic single phase connection, so the single phase packages stop at a 10 kW hybrid inverter, and the 19.8kW package needs its battery connected to carry that many panels. Three phase allows 30 kW, and its list runs from 15kW to 28kW.

The second is your postcode. The rebate table above is for zone 4, which covers most of Melbourne; in a zone 3 postcode, found in some northern and western suburbs, the same panels earn 6 more STCs on the 6.6kW package and 28 more on the 28kW, up to about $1,100 extra. Then book a free inspection: our Mount Waverley team checks the meter box, the roof and your bills, and quotes the package that fits.

Check single or three phase

Get a fixed price for your package

Free inspection, no obligation. Every federal rebate your home qualifies for comes off before you see the price.

Get a free quoteOr call 0485 000 015

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Mount Waverley, VIC 3149

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