RESIDENTIAL SOLAR
Residential solar installation in Mackay
Cyclone-rated rooftop solar panels, Ergon paperwork handled, battery rebate guidance and local SAA accredited installers.
24-hour fixed-quote turnaround for Mackay businesses.
Next Phase Solar designs and installs cyclone-rated rooftop solar for homes in Mackay, the Whitsundays and the Coalfields. Local SAA accredited installers handle the whole job, including Ergon connection paperwork and battery rebate guidance.
Brands and systems we work with
How we work
From discovery call to handover, a six-stage path
Discovery call
Week 0. 30 minutes. We cover load profile, roof type, grid-connect feasibility.
Data analysis
Week 1 to 2. You hand over 12 months of interval data. We model three scenarios with payback and IRR.
Site assessment and quote
Week 2. 24-hour PDF delivery. Hardware, NPV, sensitivity analysis, finance options.
Sign and engineer
Week 3 to 6. Final design, Ergon lodgement, procurement. Deposit 20%, progress payments against milestones.
Install and commission
Week 7 to 9. On site 5 to 14 days depending on size. Zero shutdown of core operations.
Handover and monitor
Week 10. Monitoring live, O&M schedule set. First quarterly performance report lands at week 14.
Scope of work
What residential solar in Mackay includes
- Cyclone-rated panels, wind region C as the AS/NZS standard requires here
- Full Ergon connection paperwork and the bi-directional meter swap
- Battery rebate guidance, with sizing based on your real bill data
- A Certificate of Electrical Safety and the compliant install paperwork for your insurer
- A switchboard assessment, with the upgrade quoted separately if the board needs it
- A 10-year workmanship warranty in writing, on top of the panel and inverter warranties
Service areas
Mackay-local service hub, with project crews across the Whitsundays and Bowen Basin.
What our customers say
Reviews from real Mackay businesses and homes.
Matt Harris
After getting a few quotes, We decided to go with Next Phase Solar and we’re really glad we did. They were upfront, easy to deal with, and there were no surprises along the way. Install day went smoothly and everything works perfectly!
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Donna Snell
Very pleased with the whole experience, right from quote to saving money with no more electricity bill. The quote was very competitive and the job was done in timely manner. Would recommend Brad and the team to anyone thinking of solar.
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Wellington
Really good value. I wanted to add a battery to my setup and shopped around a fair bit, and Brad came back with the best price out of everyone I asked. No pushy sales, just a straight good deal and the job done properly. Happy customer, would recommend them to anyone in Mackay looking at solar or batteries.
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Meghan Rance
I would highly recommend Next Phase Solar. From first contact, to install and then aftercare they’ve been friendly, helpful and professional. The system is performing well and I’m happy with the outcome!
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Drew Nuckolls
Really happy with my new solar panels at home. The whole thing was smooth and stress free, and they took the time to explain everything and answer all my questions, which I really appreciated. Great service and lovely to deal with. Thank you.
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Jon Paul
Fast and easy from start to finish. I just needed a battery added and they sorted it out really quickly, much faster than I expected after hearing how long other companies take. Brad was great, clear and helpful the whole way through. Highly recommend them if you are in Mackay.
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Bailey Hill
Could not be happier with my solar installation. I got quotes from several companies, since there are loads of them around and the market is competitive, and NPSolar honestly gave me the best price by far. I had also read plenty of reviews of other companies and they all seemed to take months to actually get the job done. NPSolar installed my 14 panels and batteries in a single week, at the best price, which felt almost too good to be true. Huge thanks to Brad, who was friendly, talked me through all my questions and made the whole process easy. If you are in Mackay and looking at solar, definitely get a quote from them.
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Before and after, Mackay installs
Real Mackay roofs before and after solar. Drag the slider to compare.
Frequently asked questions
About residential solar.
After the federal STC rebate, a quality 6.6 kW system is roughly $5,500 to $7,500 installed; a 10 kW system roughly $9,000 to $12,000; a 13.2 kW system roughly $11,500 to $14,500. Real number depends on panel/inverter choice, roof complexity and switchboard work needed. We send a fixed-price quote, not a range.
The hardware is designed to survive (rated to wind region C, the AS/NZS standard for our region). During the event itself, if the grid drops, a grid-tied solar system shuts down for safety (anti-islanding). If you add a battery with backup-circuit support, your fridge and lighting stay on through the outage.
Ergon's current single-rate Solar Bonus FIT in regional QLD is around 4 to 7 c/kWh in 2026, down from historical peaks. The economics are now driven by self-consumption (using your own solar) rather than export. We size the system to maximise daytime use, and recommend batteries when your usage is mostly evenings.
One day for a typical 6.6 to 10 kW rooftop install. Switchboard upgrade (if needed) can add half a day. Ergon meter swap to a bi-directional meter happens 5 to 15 business days after install.
Not always. If most of your power use is between 9am and 4pm (work from home, daytime air-con, EV that charges during the day), solar without a battery is the better ROI. If you use most power at night or want blackout backup, a battery makes sense, especially with the 2025 federal Home Battery rebate cutting ~30% off the cost.
No. We provide a CES (Certificate of Electrical Safety) and a copy of the AS/NZS-compliant install paperwork. Most insurers accept this without changing your premium. We hand you the docs to forward to your insurer at handover.
Panels: 25-year performance warranty, 12 to 25-year product warranty depending on brand. Inverter: 5 to 12 years. Workmanship: 10 years from us, written. If a panel or inverter fails inside warranty we handle the manufacturer claim and the swap, not you.
Two different things get called that, and mixing them up is what leads to a badly sized system. The rule that is actually a rule is the Clean Energy Council's 133 percent limit: your panels can be up to a third bigger than your inverter and the system still qualifies for STCs, which is exactly why 6.6 kW of panels on a 5 kW inverter is the standard Australian system. The other one is a design habit, not a regulation: size the system around 20 percent above what the household actually uses, so a bad week of weather does not leave you buying power. We size against 12 months of your bill rather than either rule of thumb.
Usually yes for the bill, often not for a Mackay summer. A 6.6 kW system is about 15 panels and covers a typical four bedroom household that is out during the day. What changes the answer here is air conditioning and a pool pump running hard through a humid November to April, which is when the load is highest and the roof is producing least in the afternoon. If that is your house, the useful comparison is 6.6 kW against 10 kW, and going up is rarely a big jump in price.
Between $5,500 and $7,500 installed, after the federal STC discount. A 10 kW system runs roughly $9,000 to $12,000. The real number moves with the panel and inverter you pick, the roof, and whether the switchboard needs work, which is why our quote is fixed within 24 hours instead of a range on a website.
Read first
Guides on Residential Solar
System Design
Pros and Cons of Installing Residential Solar on Your Mackay Home (2026)
Honest pros and cons of residential solar in Mackay 2026. Real numbers on the federal STC rebate, Ergon feed-in tariff, payback and what to watch out for.
System Design
How Many Solar Panels Do I Need? A Simple 2026 Sizing Guide
How many solar panels you need based on your power use and panel wattage, with a simple table for Mackay homes and the quick maths to work it out.
System Design
Is Solar Worth It in 2026? An Honest Look at Payback and When It Is Not
Whether solar is worth it in 2026, the real payback period in Queensland, and the honest cases where solar is not the right call yet.
