13kW Solar Systems

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Solar System Prices

Compare current solar system starting prices, rebate assumptions, common extras and what affects your final quote.

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Battery Prices

Learn what affects solar battery quotes, when storage makes sense and how battery systems should be designed.

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Automatic Quotes

Use the instant solar quote tool to get a fast starting estimate before booking a detailed consultation.

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13kW Solar Cost: When a Bigger System Actually Makes Sense

The 13kw solar system with 10kw inverter price is usually searched by homeowners who already know a smaller solar system may not cut it. If you are comparing the 10kW solar system cost, you are probably looking at higher electricity usage, a larger home, three phase power, battery storage, an EV, pool equipment or a serious desire to stop donating half your income to electricity retailers.

A 13kW solar system can be a strong option, but it needs to be designed properly. Bigger is not automatically better. Bigger is only better when your roof, usage, inverter setup, network requirements and budget all line up without causing a technical circus.

Advanced Energy Solutions designs solar energy systems Melbourne homeowners can use to reduce electricity bills and get better control over their power. For larger systems, the quote needs to be tailored properly.

Who Should Consider a 13kW Solar System?

1

High Usage Homes

For households with high daytime electricity usage, larger bills and more appliances running through the day.

2

Larger Family Homes

For homes with more people, more loads, more devices and more ways to accidentally feed the power bill monster.

3

Three Phase Properties

For properties where a larger system may need three phase design, network approval and a suitable inverter setup.

4

Battery and EV Planning

For homes preparing for battery storage, EV charging, pool equipment, heat pumps or future electrification.

A 13kW System May Suit Homes With Higher Energy Needs

A larger solar system can suit homes that use more electricity throughout the day or want to prepare for future energy needs. It may also suit households planning to add a battery, heat pump, EV charger or other electrical upgrades.

  • High daytime electricity usage.
  • A large family home.
  • Pool pumps, heating or cooling loads.
  • Three phase power.
  • Plans for battery storage.
  • An EV or future EV charger.
  • Enough suitable roof space for the panels.

Compare Solar System Options

If your household usage is more standard, our 6.6kW Solar Cost page may be the better comparison point. Not everyone needs a larger system, despite what some quote-happy sales goblins may suggest.

Our 2026 Rates

13kW Solar System With 10kW GoodWe Inverter

From $8,692

inc GST, fully installed*

The starting price is based on a 13kW solar system with a 10kW GoodWe inverter, Jinko solar panels and the listed rebate, loan and STC assumptions.

Before deductions, this system starts from $14,300 inc GST. After the $1,400 Solar Victoria rebate, $1,400 Solar Victoria interest-free loan and $2,808 STC deduction, the starting price is $8,692.

Starting Price Based On
  • Jinko solar panels and a 10kW GoodWe inverter.
  • Single-storey house with a Colorbond roof under a 27 degree pitch.
  • Property has suitable roof space and enough usable roof faces for the system design.
  • Single phase or three phase requirements confirmed before final quote.
  • Spare spacing available in the switchboard.
  • Inverter configured for zero export if required by the network.
  • Property located in Greater Melbourne, Ballarat or Geelong.
  • STC deduction claimed by Advanced Energy Solutions in 2026 ($2,808).
  • Price includes the Solar Victoria rebate ($1,400) and Solar Victoria interest-free loan ($1,400).
  • Total price is $14,300 inc GST before rebate, loan and STC deductions.
  • Final costs confirmed after a site inspection.
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Why 13kW Solar Pricing Can Still Change

The 13kW starting price is useful for comparison, but the final price can still change based on your property, system design and installation requirements.

Our solar system cost in Melbourne page explains the standard assumptions and common extras that can affect solar pricing across Victoria.

Multi-storey installation Extra labour and safety equipment required. +$1,000 – $3,000
Switchboard upgrade Older homes may need upgrades to meet standards. +$800 – $1,500
Long cable runs When inverter is far from the switchboard. +$200 – $500
Multi roof faces When the solar panels are split over multiple sections. +$250 per split roof
Roof type (Tile) Some materials, such as terracotta, need extra care. +$400 – $800
Steep roof installation (30°+) Additional safety equipment and labour required for steep pitch roofs. +$500 – $1,500
3 phase power 3 phase installations require more expensive parts. +$500 – $2,000
Regional / difficult access Travel or access challenges for properties outside metro areas. +$500 – $1,000

💡 Final costs are always confirmed after a site inspection with transparent pricing and no surprises.

Is a 10kW GoodWe Inverter Right for a 13kW System?

A 13kW solar system can be paired with a 10kW GoodWe inverter, but the right design depends on the property and the network requirements.

  • Panel capacity: Panel size and inverter size need to be designed together.
  • Network requirements: Export settings and approval requirements can affect the final setup.
  • Property type: Single phase and three phase properties can require different approaches.
  • System performance: The inverter controls how solar power is converted into usable electricity for the home.

What Else to Compare Before Choosing 13kW Solar

If you want to understand how inverter size, panel capacity and system design work together, the what is an inverter for solar panels page is a useful supporting read. It will help you avoid comparing quotes purely by panel count, which is how people end up sounding confident while misunderstanding the entire system.

Should a 13kW System Include a Battery?

A larger system can pair well with a battery when the goal is to store more solar energy for evening use. This can be useful for households with higher night usage, larger appliances, future electrification plans or a general desire to use more of their own power.

Our battery quotes page explains what to consider before adding battery storage to a new solar system.

Battery Sizing Still Needs to Be Practical

A battery that is too small may not support your goals, while a battery that is too large may hurt the return on investment.

Battery storage should be designed around your usage, solar generation, inverter setup and budget.

13kW Solar for Larger Homes and Businesses

Some larger residential systems overlap with the thinking behind business solar. If your property has high consumption, daytime loads or multiple electrical upgrades planned, it may be useful to read our Commercial Solar page as well.

Lower Grid Reliance With Better Design

The same basic idea applies: better energy use, lower grid reliance and a system designed around actual demand.

For larger systems, the quote should be tailored properly instead of built around a generic package.

13kW Solar Cost FAQs

Who should consider a 13kW solar system?

A 13kW solar system may suit homes with high daytime electricity usage, a large family, pool equipment, heating or cooling loads, three phase power, battery storage plans, an EV or enough suitable roof space for the panels.

Is 13kW solar better than a 6.6kW system?

Not always. Bigger is only better when your usage, roof, inverter setup, network requirements and budget line up. If your usage is more standard, compare the 6.6kw solar system cost page first.

Why can the final 13kW solar price change?

The starting price assumes a standard installation with the listed rebate, loan and STC deductions. Your final price can change if the property needs extra work, such as switchboard upgrades, multi-storey access, steep roof safety equipment, tile roof work, three phase equipment or a more complex panel layout.

Is a 10kW GoodWe inverter right for a 13kW solar system?

A 13kW solar system can be paired with a 10kW GoodWe inverter, but the right design still depends on the property and network requirements. Our inverter and solar power guide explains how inverter size, panel capacity and system design work together.

Should I add battery storage to a 13kW solar system?

Battery storage can make sense if you want to store more solar energy for evening use, reduce grid imports or prepare for future energy needs. Our battery quote page explains what to consider before adding storage.

Can a 13kW solar system suit a business?

Some larger residential systems overlap with business solar thinking. If your property has high consumption, daytime loads or larger operating costs, our solar business services page is also worth reading.

How do I get a proper 13kW solar quote?

Use the instant solar quote tool for a quick estimate, then book a consultation if you want a proper site-specific design, clear pricing and a recommendation based on how your home actually uses power.

Get a Proper 13kW Solar Quote

Advanced Energy Solutions designs solar energy systems that Melbourne homeowners can use to reduce electricity bills and get better control over their power. For larger systems, the quote needs to be tailored properly.

Use the instant solar quote tool for a quick estimate, then book a consultation if you want a proper site-specific design, clear pricing and a recommendation based on how your home actually uses power.

Get an Instant Solar Quote

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