Can solar run your air con in Cairns? Yes. See what splits and ducted systems draw, what a 6.6 kW or 10 kW system covers, and real FNQ costs for summer.
Most Cairns homes need a 10 to 13.5 kWh solar battery. Learn how to size yours from your Ergon bill, with worked examples for FNQ homes with air con.
Can you add a battery to an existing solar system? Almost always, yes. Here are the three retrofit paths for FNQ homes, what they cost in 2026, and how the federal rebate changes the maths.
Yes, solar panels keep working on cloudy days. See real Cairns wet season output for a 6.6 kW system, why rain helps, and how we design for it.
Charging an EV with solar in Cairns costs about $1 per 100 km. See the real numbers for petrol, grid and solar charging, plus the setup we recommend.
Most Cairns homes need 14 to 24 solar panels in 2026. See panel counts for 5kW, 6.6kW, 10kW and 13.2kW systems, plus the simple maths behind sizing.
Quality solar panels last 25 to 30 years, even in Cairns heat and humidity. A local installer explains what ages panels in FNQ and when to replace them.
Cairns installers compare Tesla Powerwall 3, BYD, Sigenstor and Fronius. Which solar battery holds up best in FNQ heat and cyclone season in 2026.
Is solar worth it in Queensland? Yes for most Cairns homes. See real 2026 payback numbers, savings of $1,500 to $2,500 a year, and when to skip it.