Honest answer: it works, but the maths is tighter than the mainland — and it depends more on system sizing than anywhere else in Australia.

Hobart sits in STC Zone 4, the lowest solar-irradiance zone in the country. A 6.6 kW system here generates roughly 7,500–8,500 kWh per year, compared to 9,500+ in Adelaide or 10,500+ in Cairns.

The Hobart numbers in 2026

A 6.6 kW system in Hobart costs $5,500–$7,800 installed after the federal STC rebate. Pricing runs slightly above mainland averages because freight and installer scheduling are harder. Anything quoted under $5,000 usually means compromises on panels, inverter, workmanship, or all three.

Tasmanian electricity is around 27–33c per kWh — meaningfully cheaper than mainland states. That makes self-consumption less valuable than in Adelaide, but...

What's unique about Hobart

Australia's highest regulated feed-in tariff. Aurora Energy's regulated FiT for 2025–26 is 8.78c per kWh — set by the Office of the Tasmanian Economic Regulator. While most mainland retailers have dropped to 3–6c per kWh, Tassie's floor is locked in. That changes the calculation: exporting actually pays here.

Tasmanian Energy Saver Loan. Interest-free loans up to $10,000 for energy investments including batteries. Combined with the federal Cheaper Home Batteries Program rebate, most quality 10 kWh batteries are achievable with no upfront cash — a deal not available on the mainland.

Right-size for July. The biggest mistake Hobart homeowners make is sizing for average sun. Winter generation in Tasmania can drop to 25% of summer. A 10 kW system handles winter loads better than 6.6 kW.

When solar isn't worth it in Hobart

• Holiday house with no winter use — you'll generate when nobody's home and earn 8.78c/kWh. Still positive but slower payback.

• Heavily shaded site — Hobart's lower sun amplifies any shading penalty.

• Pre-1990 wiring with switchboard issues — factor in upgrade costs before deciding.