As solar system prices continue to fall, the average system being installed in Australia in 2022 is currently from around 5kW to 10kW. Despite this, a 3kW solar system can be a great system for a small to medium-sized home, either with limited roof space or low day-time energy consumption. The cost of a 3kW solar system varies a lot depending on the brands, with the price of a good quality solar system starting from around $4,500-$5,500 fully installed. A smart 3kW solar system powered by Enphase is around $300 more expensive, and we also recommend looking at high-efficiency solar panels from LG Solar. Talk to the Solaray Team today for more information and personalised pricing. A 3kW system typically has a 10-panel array and can save you up to around $300 a quarterly power bill if all of the solar power is used in the home. As solar prices continue to fall, it is now possible to get a return on your money in 4 to 5 years using top quality brands! The Price of a 3kW Solar System As a price guide, a good quality 3kW solar system in Sydney will cost from around $4,500 for a simple installation, or around $85 a month over 5 years using good quality panels from China such as Trina Honey Modules, and a European-made inverter from SMA. Expect to pay up to around $5,000 to $7,000 for a 'smart solar system' including a top of the range high-efficiency panel such as the LG Solar NeON H+ module and panel-level output using Enphase MicroInverters. This is after a government incentive of around $1500, and it is fully installed and connected to the grid. Our price is always a fully inclusive price, subject to confirmation by our system designers who will often need to conduct a site inspection. Over 80% of our installations now feature panel level output, powered by Enphase. Of course, these prices will depend on a number of factors, which our solar team can confirm with you either over the phone or during a site inspection when required. This article will look at the benefits of installing a 3kW system, the main brands you should be looking at and provide detailed information to make sure this size system is the right fit for your household. Is A 3kW Solar System Enough? For a few years now, we tend to only install a 3kW solar system if we are limited by roof space. For almost all households, a 3kW solar system will not be large enough to cover your home's energy usage. The average-sized solar system we are now installing is closer to 8kW, with most households choosing to install at least a 6kW system. We have had a few people tell us they are worried the solar industry is trying to up-sell them when they first enquire about a 3kW system. A good analogy would be to consider someone walking into a computer shop and asking for a computer that was a great option back in 2015. If the 2015 model was still available, but only a little bit cheaper, it isn't in the customers' best interest to buy the older computer. 3kW solar systems were common a few years back when solar was a lot more expensive, and when panels were a lot less efficient. Not only has the price per panel plummeted in recent years, but the efficiency of the panels has also improved significantly. The standard residential panel has increased from 250W to 415W, while the price per panel has fallen. In fact, the price of solar per kWh generated by a solar system is actually cheaper than the feed-in tariff offered by most energy retailers. This has resulted in a huge shift in the systems people are buying to the point where a lot of our customers are literally filling their roofs with panels. Other reasons why solar systems are now much larger than 3kW: The larger the system, the larger the government rebate. This means that the increase in price for the larger system is partially offset by the government incentive that comes directly off the purchase price Many households are planning to buy a plug-in hybrid or electric car within the next 10-years. Having a larger solar system means excess solar power can be used to charge the car during the daytime Battery storage is now the norm, and most households will have battery storage as a part of their solar system in the coming years. Ensuring the solar system is sized to your 24-hour usage ensures the system is battery-ready The Output of a 3kW Solar System According to the Clean Energy Council Guidelines, A 3kW solar system in Sydney will output around 12 kWh a day (averaged out across the year), outputting more on the long summer days, and less in winter. It is important to understand that this 12 kWh of solar power will be produced during daylight hours, and typically as a bell curve as illustrated below. Depending on how much power you use during the day, typically you would want to have a quarterly power bill of around $400 to $600 (approx. 24 kWh a day excluding any off-peak hot water) to make good use of a 3kW system. A solar system will peak when the sun is shining directly onto the panels, so for an array facing north, this will be for approximately 4 hours during the middle of the day. You can see in the graph how shade from clouds immediately results in a drop off of solar power, and that in summer the system will continue operating until nearly 8 pm if you have the panels installed to catch the late afternoon sun. An important point to take away from this image is that a 3kW system will almost never reach its peak output. For that to happen, it has to be the right time of the day and the right time of the year.