How much does it cost to buy a solar power and solar battery system for a home in Australia?

Residential battery costs can vary greatly, with prices ranging from $6,000 to $14,000 for a standard 10 kilowatt-hour system. However, it is important for consumers to be cautious about the quality of products they are purchasing. The most common solar system on the market is a 5 kilowatt inverter with 6.5 or 6.6 kilowatts of solar panels. A 10 kilowatt-hour battery system is typically the most suitable size for most homes, but individual circumstances and energy profiles can vary.

A complete solar and battery system, including a 5 kilowatt inverter, 6.6 kilowatt PV array and 10 kilowatt-hour battery, can cost around $15,000 to $17,000 for a quality system. Retrofitting a battery and a 10 kilowatt-hour system can cost between $8,000 to $12,000 depending on the chosen battery. It is also possible to add an AC version of the battery to an existing PV system, which can store excess energy for use at night.

The cost for residential battery really varies, there's varying quality of products. So consumers do need to be careful I guess, what they're jumping into. Prices will vary for a standard system around the 10 kilowatt-hour anywhere from $14,000 to $6,000, but that varies in quality. The most common solar system on the market would be a five kilowatt inverter, with 6.5 or 6.6 kilowatts of solar panels connected to it. The most common battery system for a residential home would be around that 10 kilowatt-hour kind of mark, that's the most suitable size for most homes. But like everything, everyone has different conditions and energy use profiles.

The complete new system, so that'd be solar and a battery together, so maybe a five kilowatt inverter, a 6.6 kilowatt PV array and around a 10 kilowatt hour battery, you'd be expecting to pay around that $15-16K, $17,000 for a quality system. If you're just looking to retrofit a battery and around a 10 kilowatt-hour system, that's probably more around the $8K to the $12,000 mark, depending on what battery you choose. If you have an existing PV system, yes, there is the option to add an AC version of the battery, so it's an AC coupled. So that will basically hardwire directly into your switchboard, and any excess energy that would be exported from your existing solar system will actually, before going to the grid, it'll be charging into your battery and then you can use that at night-time.