How many solar panels will fit on your roof?

How many solar panels will fit on your roof?

Last updated 10 September 2026 Quick answer: A typical 440 watt panel takes about 2 square metres, so a 6.6 kW system needs roughly 15 panels and 30 square metres of clear roof. Draw your roof on the free calculator below to get your exact number. Before any installer...
Does the perfect solar panel angle actually matter?

Does the perfect solar panel angle actually matter?

Last updated 10 September 2026 Quick answer: Less than the marketing suggests. Most Australian roofs capture the large majority of the ideal yield. Enter your direction, tilt and postcode into the free calculator below to get your exact percentage. Solar marketing...
How steep is your roof, and does it matter for solar?

How steep is your roof, and does it matter for solar?

Last updated 10 September 2026 Quick answer: Most Australian roofs are pitched between 15 and 25 degrees, a little flatter than the ideal of roughly your latitude. The difference is usually only a few percent, which is why panels almost always go flat on the roof....
Which way should solar panels face in Australia?

Which way should solar panels face in Australia?

Last updated 10 September 2026 Quick answer: In Australia, north facing panels capture the most energy over a year. West facing suits households that use most of their power in the afternoon and evening. Measure your roof’s real direction with the free azimuth...
Why solar systems quietly underperform, and how to catch it early

Why solar systems quietly underperform, and how to catch it early

Last updated 10 September 2026 Quick answer: Most solar faults hide inside normal weather variation, so owners find them months late. A monitoring service that models what your system should produce, like PV Fleet, flags a genuine fault within hours. Most solar owners...