Byron sun hours and salt air

Sun hours are a range, not a slogan

Northern coastal NSW has a useful solar resource. Industry datasets and Bureau-derived maps typically put this coastline in a band of roughly 4.5–5.5 peak sun hours a day, depending on month, how the figure is averaged, and whether you are quoting a tilted plane or a flat one.

Treat any single number you see in an ad — including older local pages that locked onto one decimal — as illustrative. Season matters. A clear August noon is not a February afternoon with a storm building over the hinterland. A design should use a year of weather, not a postcard.

What actually changes output on a Byron roof

Orientation and tilt, then shade, then dirt and salt film, then inverter clipping and export limits. The headline sun-hour figure is the backdrop. The roof is the story. A north plane in Suffolk Park and a south-east pocket behind trees in town will not perform like each other, even on the same day.

Salt air is a hardware and inspection issue

Marine air is hard on ferrous metals, untreated fixings, tired earth straps, and inverter intakes that sit in a breeze. Glass and cells are usually the durable part. If a quote is silent on mounting spec and inverter location, it is incomplete for this coast.

A practical homeowner habit: visual checks after big weather, keep vents clear, and do not wait five silent years for the first inspection. Pair that with the maintenance page if you already have an array.

Design language, not scare language

Salt does not mean solar is a bad idea in Byron. It means the specification should match the site, and the aftercare should be real. That is the whole distinction between a coastal design and a copied inland kit.