Each solar inverter on this list has been carefully selected for its efficiency, durability, and value for money. We’ll delve into the features, benefits, and potential drawbacks of each model, helping you make an informed decision. Embrace the future of energy with confidence, knowing you’ve chosen a top-performing solar inverter to power your home.
Key facts
- It’s important to review the size, cost, efficiency, warranty, and monitor availability of inverters before making your final choice.
- As a general rule, a 6.6kw sized solar panel system requires a 6.6kw sized inverter.
- Solar inverters range in efficiency rating, with the lowest being around 90% and the highest being 99.5%.
- Inverters generally cost between $1,000 and $3,000.
What is a solar power inverter?
When it comes to solar energy, an inverter is one of the most important pieces of equipment. It converts direct current (DC) electricity from a panel generated by solar panels into alternating current, which can be used for things like powering lights or other devices in your house. First, there has got have been some conversion happening. In fact, inverters are just part of this class called power electronics, which regulates flow patterns within circuits involving many different types/brands.
How to choose the best solar inverter
There’s a lot to consider when thinking about what type of inverter is right for your home. You’ll want one with the proper power output and installation, but also take into account things like price range as well.
- Size: When installing solar panels, it’s important that you use an inverter with the correct power rating for your system. Solar systems range in size from 1kW all the way up to 40+ kW, and because of this, there are many models available which will meet any need imaginable! It has been reported by some installers to advise purchasing undersized units so as not to damage future addition modules, but if you plan on adding more than 4kW, it is worth considering getting a larger one now instead.
- Efficiency: The efficiency of an inverter is a measure of how much electricity it can convert to AC. For example, if your solar system produces 92%, then eight per cent would be wasted in the process, and most have efficiencies over 95%. Some units even reach 99.5%.
- Cost: When installing a solar inverter, the costs vary depending on how big and powerful you need your machine. The most expensive is $2,000 with extra features such as a battery management system (BMS). If purchasing separately without any rebates available, then expect an additional expense of around $300 for installation services to make sure everything fits well together before moving forward.
- Warranty: We recommend choosing an inverter with the longest warranty period possible. For example, if your electricity costs are low in areas where it’s affordable to own a generator, then 10 years might not matter as much, but this could add up for those who spend more on their power bill every month. Maintaining proper insulation will help extend its lifespan, so make sure any appliance being used has been tested before entering into new territory by checking out what kind of coverage comes standard or whether extended services exist through providers.
- Monitor Ability: Monitoring your solar system is important for several reasons. Not only does it help you track how much electricity the panels are producing and charging up their battery, but also what time of day or night they’re generating the most power.
Best solar inverters
Enphase IQ8
Enphase micro-inverters are durable and reliable, designed to optimize the performance of each solar panel individually. This model offers a 97.4% efficiency rating and a 15-year warranty (extendable to 25). Ideal for residential installations, Enphase inverters ensure maximum energy production even in shading conditions.
- Efficiency: 97.4%
- Warranty: 15 years (extendable to 25)
- Features: Micro-inverters, US company, optimizes each panel individually, great for shaded areas
SolarEdge SE5000H
SolarEdge offers top-tier inverters with an impressive 99.2% efficiency rating, the highest on this list. These inverters are paired with power optimisers, ensuring each panel operates at its maximum potential. With a 12-year warranty (25 years for optimisers), SolarEdge inverters are perfect for those seeking long-term reliability and optimal performance.
- Efficiency: 99.2%
- Warranty: 12 years (25 years for optimisers)
- Features: Power optimisers, Israeli innovation, best for maximizing panel output
Huawei SUN2000-5KTL-L1
Huawei provides affordable yet efficient inverters with hybrid capabilities, allowing them to integrate with battery storage systems. With a 98.4% efficiency rating and a 10-year warranty (extendable to 20), these inverters are ideal for homeowners looking for high efficiency and reliability. They are recognized as top performers by PV Labs.
- Efficiency: 98.4%
- Warranty: 10 years (extendable to 20)
- Features: Hybrid inverter, PV Labs top performer, compatible with battery storage
SMA SB5.0-1AV-41
SMA inverters are compact and efficient, perfect for residential installations. Each unit includes advanced features like the ShadeFix function, which optimizes energy production in partially shaded conditions. With a 97% efficiency rating and a 10-year warranty (5 years full + 5 years on registration), SMA inverters offer excellent performance and durability.
- Efficiency: 97%
- Warranty: 10 years (5 years full + 5 years on registration)
- Features: ShadeFix function, German engineering, robust design
Fronius GEN24 5.0
Fronius is known for its highly efficient inverters that cater to various solar panel systems. The GEN24 5.0 model boasts a 97.6% efficiency rating and comes with a 10-year warranty (5 years full + 5 years parts only). These hybrid inverters are ideal for both residential and commercial applications, providing reliable performance and monitoring capabilities.
- Efficiency: 97.6%
- Warranty: 10 years (5 years full + 5 years parts only)
- Features: Hybrid inverter, top performer monitor, Austrian engineering
Sungrow SG5.0RS
Sungrow inverters offer good value with an efficiency rating of 97.9%. They come with a 10-year warranty and feature a low start-up voltage, making them ideal for various applications. These inverters are designed for both residential and small commercial systems, providing robust performance and durability.
- Efficiency: 97.9%
- Warranty: 10 years
- Features: Low start-up voltage, built-in DC isolator, reliable performance
Goodwe MS Series
Goodwe inverters are known for their reliability and performance. The MS Series features 3 MPPTs (Maximum Power Point Trackers) and allows for 200% DC oversizing, ensuring optimal energy production. With a 10-year warranty, these inverters are suitable for both residential and commercial applications.
- Efficiency: 97.7%
- Warranty: 10 years
- Features: 3 MPPTs, 200% DC oversizing, high reliability
Delta H5A_222
Delta inverters are cost-effective and efficient, making them a popular choice for homeowners. With a 97.5% efficiency rating and a 5-year warranty (extendable to 20), they offer great value for money. These inverters feature low start-up voltage and built-in DC isolators, enhancing their performance and safety.
- Efficiency: 97.5%
- Warranty: 5 years (extendable to 20)
- Features: Low start-up voltage, built-in DC isolator, cost-effective solution
Review the best solar inverter brands
The following table lists our top chosen inverters for Australia in 2024, including indicative cost ranges and average efficiency ratings. Note that these prices are estimates and can vary depending on the specific model and size of the inverter. Prices may be lower or higher based on various factors, so consider this as a general guide when planning your solar power investment.
Company Name | Average Cost | Efficiency Rating |
Enphase | $2,400 to $2,600 | 97.40% |
SolarEdge | $1,800 to $2,000 | 99.20% |
Huawei | $1,100 to $1,300 | 98.40% |
Fronius | $1,700 to $2,000 | 97.60% |
SMA | $1,700 to $2,000 | 97.00% |
Delta | $800 to $1,000 | 97.50% |
Sungrow | $800 to $1,000 | 97.90% |
Goodwe | $800 to $1,000 | 97.70% |
Source: Solar Choice (June 2024)
Frequently Asked Questions and Answers
What is the best solar inverter brand?
The answer to this question depends entirely on what kind of solar power system you have, your budget, and what you consider the most beneficial aspect of an inverter. For example, if you don’t have a limited budget and want the most efficient inverter for your solar panel system, we recommend the Solar Edge inverters. However, if you’d like a high standard inverter for an affordable price, opt for an inverter from ABB.
Which kind of solar inverter do I need for a 6.6kw solar panel system?
If you possess a 6.6-kilowatt solar panel system, you will most likely require a 6.6-kilowatt solar inverter to accommodate your system. However, if you wish to expand your solar system in the future, you may think of purchasing a larger solar system inverter, such as a 10kw inverter. It’s important to understand how inverters work before making your final purchase.
Where can I find the best solar inverters?
When it comes to finding the ideal solar inverter for your home, it’s important to review and compare various products and brands. Remember to analyse the different prices, sizes, efficiency rating, and warranties as these can differ drastically. While the more expensive and efficient inverters are often seen as more valuable, you may be able to find your perfect inverter for a cheaper price and longer warranty. Request a quote from one of the above providers to start your solar inverter comparison.
How much do solar inverters cost?
The price of a solar inverter is dependent on a few factors. These include the brand the inverter is made by, the size of the inverter to fit your solar system, and the efficiency rating. The most expensive inverters cost around $2,500 to $3,000, while an inexpensive inverter can cost about $1,150. It’s important to review and compare inverters and prices before making your final choice.