string inverters solar panels

What Are String Inverters?

 One of the most commonly used inverters are the string inverters. They’re called string inverters because the rooftop solar panels are connected in a “string” in order for them to function. These strings of panels will then be connected to the inverter. These inverters convert power (DC) into energy usable by home appliances (AC). It can be cheaper to install one string inverter, instead of multiple micro-inverters. String inverters are a great option especially when you live in an unshaded area. Find out how this is different from a microinverter system.

inverter oversizing

What Is Inverter Oversizing And Undersizing?

Oversizing

You may choose to oversize your inverter if you want to upgrade your solar system capacity in the future. This makes sense for you if you can find the panels to match when the time comes, and the solar engineering design is done to avoid losses. String inverter systems require that all panels have the same peak capacity.

Undersizing

Undersizing is also referred to ‘overclocking’. Undersizing the inverter is where the size of the inverter is lower than than the output capacity of your system. Why might you choose to do this? The best performance of your inverter would ‘kick in’ earlier in the day, leading to more energy gained from an earlier ramp up, and more energy gained from a later ramp down.

The CEC allows undersizing up to 30%. For cost and performance maximisation, where there are components that are ideally matched we may offer you a system with a downsized inverter.

Best Solar String Inverters in Sydney

1. SMA Sunny Boy & Sunny Tripower 

The SMA Sunny Boy and Sunny Tripower are string inverters that convert solar power into usable alternating current. The SMA Energy Systems help homes and businesses get the most out of their solar panels and reduce total energy costs up to 80%.

RK Solar is proud to be a SMA PowerUP Partner.

Key Features of SMA Inverters:

a) SMA ShadeFix: A software-based shade management system integrated into the inverter that is used in systems with light to medium shading.

b) SMA Monitoring: The SMA Sunny Portal and SMA Energy app monitoring tools allow you to easily manage and clearly visualize your energy system.

c) SMA Smart Connected: A feature that automatically monitors your inverter and, if necessary, initiates immediate troubleshooting.

d) Intelligent AC-coupled technology: SMA inverters are battery read at any time. A Sunny Boy Storage can be added to your PV system and allow you to start storing your excess solar generation.

Why Choose SMA Solar Inverters?

a) SMA is the world’s longest servicing solar inverter manufacturer with over 40 years of experience under its belt.

b) Over 750,000 SMA inverters are installed all over Australia and are producing more than 35% of the country’s solar electricity.

c) SMA does comprehensive performance testing on all its inverters to ensure long life cycle and reliability.

d) It’s a great brand which we’re happy to recommend thanks to all our happy customers who are using SMA inverters.

Datasheet:
SMA Sunny Tripower – 3.0/4.0/5.0/6.0
Sunny Boy – 3.0/3.6/4.0/5.0/6.0

2. Fronius Solar inverters

Fronius string inverter installation sydney

The Fronius brand can be traced back to 1945 when it was a one-man operation. The company has grown exponentially over decades to become a manufacturing giant in the renewable energy sector.

Fronius capitalises on its years of experience, not only manufacturing inverters, but also in having high quality standards and production in Austria. This accounts for the reliability and performance of the Fronius inverters.

Why Fronius?

a) Smart technology: The intelligent Fronius inverters ensure that electricity from photovoltaic systems can be used efficiently.

b) Built-In Wifi: This feature allows smartphones to connect to the inverter and monitor its performance, via the Fronius app.

c) Active cooling system: Fronius inverters use active cooling system to help the inverters perform better and to prevent overheating.

d) 5 + 5 Year Warranty: All Fronius inverters come with five years Fronius Warranty Plus as standard. For a limited time, users also can claim an additional five years Fronius Warranty for free upon registration in Fronius Solar.web.

Datasheet:
Fronius Primo Datasheet

Fronius Symo Datasheet

Huawei Three Phase Solar Inverter

3. Huawei Solar Inverters

The next generation Huawei FusionSolar residential inverters are an exciting addition to the pool of premium solar products in the Australian market. Both the lightweight Single-Phase & Three-Phase string inverters offer easy to install “plug-and-play” features, and are battery ready, making your future solar upgrade plans so much easier. RK Solar is proud to be a Registered Huawei FusionSolar Retailer.

Why Choose Huawei?:

SAFETY: The inverters come with active arching string protection, which is one of the most important safety features for a device dealing with high voltage. This feature allows for accurate arc fault detection and is able to initiate inverter shutdown in 0.5 seconds.

BETTER YIELD: Apart from that, Huawei offers solar users an optional Smart PV optimiser, which help to improve yield and optimise each module’s performance up to 30%. The “one-size-fits-all” Smart PV optimiser can be used on any poly & mono PV modules in the market. The optimiser is also 50% smaller than its competitors in the market.

COMMUNCATIONS: The Huawei Inverters come with built-in WIFI and also offer optional 4G (dongle) connectivity. All inverter connected devices can be automatically detected in FusionSolar monitoring portal. The smart monitoring systems can be accessed via the FusionSolar app or web interface.

WARRANTY: Huawei offers a 10 year warranty (parts & service) on all its solar inverters, which have been installed as per manufacturer guidelines.

Datasheet:
SUN2000-5_6KTL-M1
SUN2000-2-6KTL-L1

4. Sungrow Inverters

sungrow string inverter sydney“The World’s Most Bankable Inverter Brand” for 2 Consecutive Years.

Sungrow has over 24 years of experience in the solar industry. The inverters offer a 99% efficiency, making it one of the most efficient solar inverters in the market.

Sungrow has the largest dedicated Research & Development team in the solar industry, making it a forerunner of solar technology. There are over 150 countries worldwide that use Sungrow technology and this number is constantly growing. Check out one of our recent Sungrow installations for a non-profit organisation in Campbelltown, NSW.

 Sungrow Inverter Benefits:

a) Withstand Australian Climate: Sungrow inverters has been tested to withstand harsh weather conditions.  

b) Inverter Monitoring: Easily monitor your solar system performance with iSolarCloud.

c) Inverter Warranty: Sungrow offers between 5-10 year warranties on their inverters, depending on the model. Premium versions offer a full 10 year warranty. 

Datasheet:

Sungrow Inverter Datasheet

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    We design and install high quality residential and commercial solar panels and solar battery systems with the highest quality solar technology.

    Contact Us

    Head Office

    Unit 21/6 Gladstone Rd, Castle Hill NSW 2154

    Victoria Office

    34 Chartwell Drive, Wantirna Victoria 3152

    Phone Inquiry

    1800 338 809

    Email Us

    info@rksolar.net

    We design and install high quality residential and commercial solar panels and solar battery systems with the highest quality solar technology.