Your solar inverter is the single most important piece of hardware in your system — it’s what turns the DC power your panels generate into usable AC electricity for your home. A cheap or poorly-matched inverter is the most common reason a solar system under-delivers.
At Marshall Solar & Energy, we supply and install grid-connect inverters from three of the most trusted names in the industry Sungrow, GoodWe and Fronius, and we’ll help you match the right one to your roof, your panels, and how your household actually uses power.
A grid-connect (also called “grid-tied”) solar inverter is the device that converts the DC electricity produced by your solar panels into the AC electricity your home’s appliances and the grid actually run on. It also manages how your system exports surplus power back to the grid, and it’s the component most responsible for your system’s real-world efficiency, safety, and lifespan.
Not all inverters are built the same. The differences that actually affect your power bill and your peace of mind come down to:
We don’t push one brand for every job — we size and specify based on your roof, your budget, and your goals. Here’s how our three core brands stack up:
Sungrow World’s largest inverter manufacturer by shipment volume, with a strong local track record across Tasmania. Excellent efficiency, wide MPPT range for tricky roofs, and battery-ready across most of the range. Our most popular choice for straightforward grid-connect installs.
GoodWe Compact, reliable, and well suited to homes planning to add a battery down the track — GoodWe’s hybrid-ready range makes future battery integration simple. Strong smartphone monitoring app and a solid mid-range price point.
Fronius Austrian-engineered, built for longevity, and known for some of the best build quality and after-sales support in the industry. A popular choice for customers who want the inverter with the strongest reputation for lasting 15+ years with minimal issues.
Your inverter size should generally match your panel array within Australian inverter-to-panel sizing ratios (commonly 100–133% of panel capacity, depending on the brand and site). We size this precisely from a site assessment rather than guessing off your roof size alone.
In most cases, yes — a modern grid-connect inverter can usually be matched to an existing panel array, provided the panels are in good condition and compatible with the new unit’s input range. We check this as part of every quote.
There’s no single “best” — it depends on your roof layout, budget, and whether you’re planning to add a battery. Sungrow suits most straightforward installs, GoodWe is a strong pick if a battery is on your future roadmap, and Fronius is favoured by customers prioritising long-term build quality and support. We’ll recommend based on your specific site.
Quality grid-connect inverters like the ones we install typically last 10–15 years, roughly half the lifespan of your solar panels, so most systems will need one inverter replacement over the panels’ lifetime.
Our installation teams cover Hobart, Launceston, and the wider Tasmanian region. We also ship inverters and components Australia-wide through our online shop for customers or licensed installers outside our install area.
Don’t let your energy savings slip away.
Contact Marshall Solar & Energy today for expert solar repair and maintenance in Hobart and Launceston.
Please fill out the below contact form and include photos of your inverter as described below, and we’ll be in touch to arrange a quote.
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With long-running showrooms based in Hobart and Launceston, and team members who live in the wider community, you know that you’ll be getting that Tassie-style of customer service and support where trust and reputation mean everything to our business.
You could say that were energy nerds...! We just love working with sustainable technologies and green energy, and staying up to date with the latest technologies and trends.
We have an excellent track record including a bucket load of verified reviews and a great word-of-mouth reputation for people all over Tasmania.
As an established Tassie business with over 15 years of experience with solar panels & batteries, you can rely on us to be there for the life of your solar panel system.
Marshall Solar & Energy is an independent, locally owned and operated company that is run by local families who live in your neighbourhood and care about the future of our community.
Please fill out the below contact form and include recent power bills or photos you’d like to provide, and we’ll be in touch to arrange your free measure and quote.
