Solar Inverters

Essential Facts About Solar Inverters

Commonly, consumers think about solar panels without evaluating their need for a solar inverter. This component is as important as the panels in your solar system. The inverters convert electricity that the panels gathered. This way, you can use it to power your appliances and lighting.

There are different types of inverters that you can choose from:

Grid-tied

As the name suggests, this type is connected to the grid. It is often known as an inverter, which means it accepts both AC and DC power. A grid-connected inverter is the most versatile and performs various functions, including:

Grid-tied inverters can be a string inverter, a solar optimiser, or a micro inverter. A micro-inverter is a smaller type of inverter and is designed to work with individual panels. The traditional inverter is made to work with a string of modules. Although they are not new (introduced in the late 90s), microinverters have recently gained in popularity.

Perhaps the biggest advantage of using micro-inverters is that the outputs are not dependent on each panel. For instance, one of the panels is experiencing a lower output because of shade issues. When you use a micro-inverter, the rest of the panels will not be affected and will remain efficient.

The US National Renewable Energy Laboratory confirmed that using micro-inverters can give homes as much as a 12% increase in energy output.

Easy Solar Recommended Inverters

We only use the best brands for our solar installations, that all come with amazing specifications and warranty. As such, we’re proud to offer inverters from renowned brands like GoodWe, Fronius and Huawei.

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GoodWe is a leading manufacturer of a range of solar equipment, including solar inverters and energy storage solutions. They provide their products to both commercial and residential properties. GoodWe Inverters have been installed across Australia and around the World.

GoodWe 3000D-NS

Canadian Solar 345w solar panel low irradiance and a high PTC rating.

This 3kW inverter is perfect for smaller solar installations, with a high-efficiency rating, excellent cooling and low-noise design. It’s the ideal addition to your home or small business.

Max Power output: 3000w

Phase: Single

Protection degree: IP65

Efficiency: 97.8%

Warranty: 5-year warranty (extended available)

Available in:

3.5kW Package

GoodWe 5000D-NS

The ET-M660300WB solar panel with anti-reflective coating to reduce maintenance costs.

With excellent efficiency, this 5kW inverter from GoodWe could be the best companion for your solar setup. Dust and waterproof, low noise and lightweight design.

Max Power output: 5000w

Phase: Single

Protection degree: IP65

Efficiency: 97.8%

Warranty: 5-year warranty (extended available)

GoodWe 5000-DT

The Q.Peak-G4.1 boasts higher yield for every surface area than many other products.

This 5kW three-phase inverter allows you to have multiple solar roof orientations, to get the max out of your solar installation and the Australian sun.

Max Power output: 5000w

Phase: Triple

Protection degree: IP65

Efficiency: 98%

Warranty: 5-year warranty (extended available)

Available in:

6.6kW Package 1

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Fronius is an Austrian manufacturer of a range of equipment, and are best known for their photovoltaic and battery technologies. Their inverters are World-renowned for their quality, reliability and performance.

Fronius Symo 5.0-3-M

Canadian Solar 345w solar panel low irradiance and a high PTC rating.

A market-leading three-phase inverter from a brand with a trusted history. This 5kW inverter from Fronius is ideal for those homes that need a three-phase system in place.

Max Power output: 5000w

Phase: Triple

Protection degree: IP65

Efficiency: 98%

Warranty: 5-year warranty (extended available)

Available in:

6.6kW Package 2

Fronius Primo 5.0-1

The ET-M660300WB solar panel with anti-reflective coating to reduce maintenance costs.

Fronius is a big name in the solar business, their 5kW single phase inverter ideal for most solar systems, with industry-leading efficiency and great warranty included.

Max Power output: 5000w

Phase: Single

Protection degree: IP65

Efficiency: 98%

Warranty: 5-year warranty (extended available)

Available in:

6.6kW Package 2

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Huawei is one of the largest technology companies in the World, with a range of products from smartphones, electronics and solar equipment. Huawei inverters are backed by an excellent warranty, high levels of performance and longevity, so you know your solar system will be up to the task.

Huawei SUN2000L-5KTL

Canadian Solar 345w solar panel low irradiance and a high PTC rating.

The technology giant Huawei offers this 5kW inverter with a 10-year warranty as standard, putting their full trust in the system. Fanless and stylish, perfect for a modern home.

Max Power output: 5000w

Phase: Single

Protection degree: IP65

Efficiency: 98.6%

Warranty: 10-year warranty

Available in:

6.6kW Package 3

Huawei SUN2000-5KTL-M0

The ET-M660300WB solar panel with anti-reflective coating to reduce maintenance costs.

The Huawei 5kW smart inverter is cutting edge technology in the solar market, with a 10-year warranty, brilliant efficiency and option 4g module, this is the technology of tomorrow.

Max Power output: 5000w

Phase: Triple

Protection degree: IP65

Efficiency: 98.4%

Warranty: 10-year warranty

Available in:

6.6kW Package 3

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Within a decade’s time, Growatt quickly grows to become a global leading distributed energy solution provider. Today, Growatt is already the global No.1 residential inverter supplier and also the largest user-side energy storage inverter supplier in the world.

GroWatt MIN 5000TL-XA

Canadian Solar 345w solar panel low irradiance and a high PTC rating.

This technology giant GroWatt offers this 5kW inverter with a 10-year warranty as standard, putting their full trust in the system. Fanless and stylish, perfect for a modern home.

Max Power output: 5000w

Phase: Single

Protection degree: IP65

Efficiency: 98.4%

Warranty: 10-year warranty

Available in:

6.6kW Package 4

GroWatt MOD5000TL3-X(AU)

The ET-M660300WB solar panel with anti-reflective coating to reduce maintenance costs.

The GroWatt 5kW smart inverter is cutting-edge technology in the solar market, with a 10-year warranty with brilliant efficiency and, this is the technology of tomorrow.

Max Power output: 5000w

Phase: Triple

Protection degree: IP65

Efficiency: 98.4%

Warranty: 10-year warranty

Available in:

6.6kW Package 4

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SolaX Power envision a clean, sustainable future powered by renewable energy.With thoughts created in 2012, SolaX Power has grown year on year to become a world-recognised international company, with offices in the UK, Netherlands, Germany, Australia, Japan and the USA.

SolaX X1-boost-G3

Canadian Solar 345w solar panel low irradiance and a high PTC rating.

The X1 Boost is the ultimate residential solar inverter, perfectly designed for homes with solar panels on different sides of the roof. With two MPPT trackers.

Max Power output: 5000w

Phase: Single

Protection degree: IP66

Efficiency: 97.8%

Warranty: 5-year warranty

Available in:

6.6kW Package 5

SolaX X3-mic-G2

The ET-M660300WB solar panel with anti-reflective coating to reduce maintenance costs.

The X3 Mic G2 is the ultimate small commercial or residential solar inverter, perfectly designed for homes with solar panels on different sides of the roof.

Max Power output: 5000w

Phase: Triple

Protection degree: IP65

Efficiency: 98.5%

Warranty: 5-year warranty

Available in:

6.6kW Package 5

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Solar Inverters FAQs

An inverter is one of the most crucial components of your solar PV system. Its task is to convert the variable Direct Current (DC) input to Alternating Current (AC). The DC input is actually the output produced by the photovoltaic solar panels. It can also come from a battery where excess solar power is stored. Once DC is transformed to AC, you can use the electricity to run household appliances.

Quality inverters are a must to ensure the longevity of the solar power system. The inverter should:

  • Meet the Australian Standard AS4777
  • Have a robust convection cooling system, especially in the harsh WA climate
  • Have a minimum warranty of eight years, but ideally at least 10 years
  • Offer remote monitoring or data logging so you can check its performance anywhere at anytime

The most important of all is to ensure that the solar inverter meets the Australian Standard AS4777. It should be one of the Clean Energy Council’s approved inverters.

The different types of solar inverters include:

  • String Inverter, the most common type used in residential settings where you connect several solar panels to one inverter (like a string)
  • Optimised String Inverter, which is essentially a string inverter attached at the back of a solar panel to optimise its output
  • Central Inverter, used in commercial buildings or solar farms with up to megawatts of capacity
  • Microinverter, a tiny inverter connected to one panel and is used for optimising the panels individually
  • Hybrid Inverter, which allows plugging batteries into the PV system

Battery inverters are also growing in popularity where you have a battery system apart from your solar PV system.

Inverter prices vary widely, depending on their brand, capacity, and features. Usually, you do not buy inverters on their own because they are part of a solar system package. You can assume that the inverter makes up approximately 20% of the quoted price.

Cheaper 5kW inverters cost around $1,000, which are single-phase models. Premium options typically begin at $2,000. A 5kW inverter can carry up to 6.6kW panels, which is often the ideal size for households. Meanwhile, if you have a three-phase system, you will generally pay $400 in the prices mentioned.

You will need to enlist the help of a solar system professional to determine the best size for your home. But the general idea is to ensure the inverter is suitable for the maximum power of your solar system.

Therefore, if you have a 5kW system, you should have 5kW of panels and a 5kW inverter. But inverters are still efficient even if they have up to 25% less capacity than the panels. That’s because of the system losses, which occur in the panels.

The efficiency of the inverter is based on its ability to convert solar power into usable electricity in your home. Grid-tied or grid-connected transformer-based inverters have a 93% efficiency or higher. However, they are not as popular as before, so fewer of them are sold these days. Meanwhile, a transformerless device offers 95% efficiency or higher.

Inverters are best if they are inside the house, particularly in a dry and well-ventilated space. You can place the inverter outdoors but make sure it is weatherproof, especially in grid-connected systems. A weatherproof inverter is typically rated IP65, which means you can install it outdoors despite the harsh weather conditions.

Outdoor installation, however, does not mean the inverter should be placed directly under the sun. It should be in a dust-free area with enough space for proper air circulation.

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