Isolux Solar Sydney

For most Australian homes, the right solar inverter size is between 5 kW and 10 kW. A 5 kW inverter paired with a 6.6 kW panel array suits the majority of single-phase households with average daily energy use. Larger homes with higher consumption, three-phase power, or plans to add an EV or battery should consider a 8 kW to 10 kW inverter or larger. Getting your solar inverter size right is one of the most important decisions in the entire solar system design. An inverter that is too small clips your solar production and wastes energy. One that is too large runs inefficiently and may not meet grid compliance rules. This complete guide walks you through every factor you need to consider before making a decision. What Does a Solar Inverter Do? Your solar panels generate DC (direct current) electricity. However, everything in your home runs on AC (alternating current) electricity – the same type that comes from the grid. The solar inverter sits between your panels and your home’s switchb...

  To calculate the right solar system size for your home, divide your average daily electricity consumption (in kWh) by your location’s peak sun hours, then multiply by 1.25 to account for system losses. For most Australian households using 15 to 25 kWh per day, this calculation points to a system between 6.6 kW and 10 kW. That is the short answer. However, getting your Solar System Size right involves a few more practical steps that make the difference between a system that pays for itself quickly and one that either misses the mark or overspends your budget. This step-by-step guide walks you through every factor clearly, with real Australian examples throughout. Step 1: Find Your Daily Electricity Consumption The foundation of every solar sizing calculation is understanding how much electricity your household actually uses. Without this number, every other calculation is just guesswork. How to Read Your Electricity Bill Your electricity bill is the most accurate source of your c...

  A solar inverter typically lasts between 10 and 15 years in Australia, though the exact figure depends on the type of inverter, the climate it operates in, and how well it has been maintained. If you have had solar panels on your roof for close to a decade, this is the question worth asking now, before a sudden failure catches you off guard. Solar panels are built to outlast almost everything else on your roof. Most carry performance warranties of 25 years or more. The inverter, however, is a different story. It is the hardest working, most heat-exposed, and most electronically complex part of your entire solar system. Therefore, it is almost always the first component to wear out. In this guide, we will break down exactly how long a solar inverter lasts depending on its type, what shortens or extends that lifespan, the early warning signs of failure, and when solar inverter repair makes more sense than a full solar inverter replacement. We will also cover solar inverter installa...

  Yes, solar does increase property value in Australia, and the data in 2026 is stronger than ever. A landmark study by property data firm Cotality, analysing more than six million Australian homes, found that properties with solar panels command an average premium of 2.7%, or approximately $23,100, compared to homes without solar. For some states, this premium reaches well above $30,000. If you have been weighing up whether a solar increase property value outcome justifies the upfront investment, this guide lays out everything you need to know. From independent research and state-by-state breakdowns to what buyers are actually willing to pay, you will leave with a clear, data-backed answer. What the Research Actually Says: The Numbers Behind the Premium Solar’s impact on Australian property values is no longer anecdotal. Multiple independent studies from universities, property data companies, and financial institutions now confirm a consistent and measurable price premium. Cotali...