The honest answer: for most Queensland homes with daytime power use, yes, solar is worth it in 2026, with a typical payback of about 3 to 6 years on a panels-only system. But it is not worth it for everyone, and the return depends almost entirely on how much of your own solar you use rather than export. Here is the real maths and the cases where we tell people to wait.
The short version
In Mackay you buy power from the grid at roughly 28 to 35 cents per kWh and export surplus solar for only about 4 to 7 cents. So every unit of solar you use yourself is worth four to seven times more than a unit you export. Solar pays off fastest when you use your power during the day, and a battery extends that to the evening for a longer payback.
What is the solar payback period in 2026?
For a panels-only system in Queensland, payback is commonly 3 to 6 years. A 6.6 to 10 kW system costs roughly $5,000 to $12,000 after the rebate and saves a typical household around $1,200 to $2,200 a year, depending on how much you self-consume. After it pays for itself, the rest of the system’s 25-year life is close to free power.
A battery is a separate decision with a longer payback, usually 7 to 10 years. We go deep on that in are home batteries worth it in Mackay.
What drives the return
- Daytime use. The more power you use between roughly 9am and 4pm, the more solar you self-consume and the faster it pays back. Air-conditioning, a pool pump, working from home and daytime EV charging all help.
- Your power price. Higher grid prices make solar more valuable, and Queensland import prices are high.
- Feed-in tariff. Export is now worth little, so the game is using your own power, not selling it.
- System size and quality. A right-sized, well-installed system from a quality installer delivers the numbers. An oversized system that mostly exports does not.
When solar is genuinely worth it
- You run air-conditioning hard, which is most Mackay homes.
- Someone is home during the day, or you can shift loads like the pool pump and washing to daytime.
- You own the home, or plan to stay long enough to clear the payback.
- You are adding an EV or a battery soon, which makes a larger system pay.
When solar is not worth it yet (the honest part)
- You are about to sell or move. If you will not be there past the payback period, the return goes to the next owner.
- You use almost all your power at night and will not add a battery. Without daytime use or storage, you export most of your solar at a low rate, which stretches payback.
- Heavy shade or a tiny, awkward roof. If the roof cannot fit or properly expose a worthwhile system, the numbers weaken. Sometimes the fix is microinverters, sometimes it is to wait.
- You are chasing a feed-in tariff income. Those days are gone. If the plan relies on selling power back, the maths does not work in 2026.
We would rather tell you to wait than sell you a system that does not pay. That is the same reasoning we apply to batteries and to solar hot water.
Frequently asked questions
Is solar worth it in 2026?
For most Queensland homes with daytime power use, yes. Payback on a panels-only system is commonly 3 to 6 years, and the system then produces near-free power for the rest of its 25-year life. It is less worth it if you use power mostly at night without a battery or plan to move soon.
What is the payback period for solar in Queensland?
Usually 3 to 6 years for panels only, because Queensland grid prices are high and you save a lot by self-consuming. A battery has a separate, longer payback of around 7 to 10 years.
Is solar worth it if no one is home during the day?
It can still be, but the return is best when you either shift some loads to daytime, such as the pool pump or washing, or add a battery to use your solar in the evening. Without either, more of your solar is exported at a low rate.
Does a battery make solar more worth it?
It makes more of your solar useful, especially for evening users, but it has its own longer payback. Panels usually pay back faster than a battery, so many homes start with panels and add storage later.
Sources
- Feed-in tariffs and bill savings, energy.gov.au
- Solar payback and value, SolarQuotes
- Consumer guidance, CHOICE
What to do next
If solar looks worth it for you, the next steps are cost and sizing. See how much solar panels cost and what size solar system and battery you need, or the fuller pros and cons of residential solar in Mackay.
Next Phase Solar gives Mackay homes an honest assessment sized against your actual Ergon bills, and will tell you if solar does not stack up for your situation.
Get an honest, no-pressure solar assessment at /quote
Last reviewed June 2026.
