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What a 6.6kW solar system costs in Tasmania

By Oliver Hill · Figures produced by this site's own calculator, 2026-09 rates

A 6.6kW system in Tasmania runs $6,250 to $8,250 after rebates for value-tier equipment, saving about $850–$1,210 a year for a household using 15 kWh a day.

What is different about Tasmania

At 28c a unit Tasmania sits 7th of 8 on retail price, but it has one of the highest feed-in tariffs in the country at 9.3c, so exported power is worth something real here in a way it is not in most of Australia. It gets the least sun of the 8 at 4 peak hours a day, so the same array generates less than it would further north.

The price, and the spread

$6,250 to $8,250 after rebates. The gap between those two numbers is $2,000 for the same equipment doing the same job on the same roof.

Household usesTheir bill a quarterSystemAfter rebatesSaves a yearPays for itself
10 kWh$3555–6.6kW solar$5,470 to $7,500$680–$9007–9 years
15 kWh$4826.6kW solar$6,250 to $8,250$850–$1,2106–8 years
22 kWh$66110–13kW solar$8,000 to $13,000$1,400–$1,9105–8 years
30 kWh$86510–13kW solar$8,000 to $13,000$1,550–$2,2705–7 years

Where a 6.6kW system sits against the other sizes, in Tasmania.

Is this the right size for you?

A 6.6kW array suits a household using about 15 kWh a day, which in Tasmania means a bill around $482 a quarter at 28c a unit. Using much less than that and you are paying for generation you will export at 9.3c, which is close to giving it away.

Using more, or planning an EV, and you should be looking at the row below. An EV alone adds about 4.8 to 9 kWh a day.

What moves the price

Legitimately: a switchboard upgrade, a meter change, a two-storey or tile roof, scaffolding, and travel outside a normal service area. Each should be a line item you can see. Not legitimately: a separate charge for system design, a monitoring subscription the inverter makes redundant, and an extended warranty duplicating the manufacturer's.

Same panels.Same inverter.Same install.

$2,000 difference.

That is the gap between two quotes for the same 6.6kW system in Tasmania, in the same week. Not build quality, not a better job. Overheads, how full the diary is that month, and what the person at your kitchen table thinks you will agree to. On solar with a battery the same gap is $7,900.

Closing that gap is what I do. I already know what installers in your area are quoting this month for this equipment, so I get you the bottom of that range for the same system other companies charge thousands more for. It costs you nothing. The installer pays me, and only if you go ahead, which is why there is no reason for me to push you at a bigger system than you need or at a dearer installer.

Get your own numbers, then get them priced properly

The table above is four example households. Two minutes of questions gets you your system size, what it should cost after rebates in Tasmania, and a ten-year projection built on your roof and your usage. Then I find the bottom of that price range for you.

Run my numbers, free

No installer buys placement or ranking here, and nothing reaches an installer unless you ask.

Common questions

How much does a 6.6kW solar system cost in Tasmania?

$6,250 to $8,250 after rebates for value-tier equipment, saving about $850–$1,210 a year.

Is a 6.6kW system big enough?

It suits a household using around 15 kWh a day, about $482 a quarter in Tasmania. An EV or a pool pushes you larger.

How long does a 6.6kW system take to pay for itself in Tasmania?

About 6–8 years on these figures, though occupancy moves that more than anything else.