ST LAWRENCE · ISAAC REGION
Solar for St Lawrence and Isaac
Rural acreage and small-town homes. Off-grid and grid-tied options, cyclone-rated mounting, all paperwork handled.
48-hour fixed-quote turnaround for Mackay businesses.
How we work
From discovery call to handover, a six-stage path
01
Discovery call
Week 0. 30 minutes. We cover load profile, roof type, grid-connect feasibility.
02
Data analysis
Week 1 to 2. You hand over 12 months of interval data. We model three scenarios with payback and IRR.
03
Site assessment and quote
Week 2. 48-hour PDF delivery. Hardware, NPV, sensitivity analysis, finance options.
04
Sign and engineer
Week 3 to 6. Final design, Ergon lodgement, procurement. Deposit 20%, progress payments against milestones.
05
Install and commission
Week 7 to 9. On site 5 to 14 days depending on size. Zero shutdown of core operations.
06
Handover and monitor
Week 10. Monitoring live, O&M schedule set. First quarterly performance report lands at week 14.
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.
Glenn
Brad and the team installed a 27 kW system on our shed roof in three days. Quote was the third we got and the only one with a payback breakdown I could actually understand. Bill dropped from $1,800 to $340 the first quarter.
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Sarah
Replaced our old 6 kW with a 13 kW plus Tesla battery. Crew were on time every day, cleaned up the site, and walked me through the monitoring app on handover day. Three weeks later the export limit paperwork came through with zero chasing.
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Trent
Quoted for a switchboard upgrade and three-phase wiring at our workshop. Got the AS/NZS test certificates with the handover pack, RPEQ stamped. Nothing I had to chase up after. Will book them for the solar phase 2 next FY.
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Maria
Asked three installers for a commercial quote on our cold storage facility. Next Phase was the only one that asked for our interval data before quoting. The other two pitched random kW numbers. Their PDF had NPV, payback and a sensitivity band, exactly what we asked for.
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Linda
Storm took out two panels and damaged a rail. Brad came out Monday morning, replaced the panels under manufacturer warranty within the week. No drama, no upsell on extra work, no chasing the insurance for me.
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Dave
Honest sizing advice. We were ready to oversize the system and they talked us down to a 10 kW match for our daytime load, with batteries to come later. Saved us about $9k upfront and the payback math is still under six years.
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Before and after, Mackay installs
Real Mackay roofs before and after solar. Drag the slider to compare.
FAQs about solar in St Lawrence
Quick answers about response time, paperwork and system sizing for St Lawrence.
Yes, off-grid is core for the southern Isaac region. We design hybrid systems (solar + battery + diesel/LPG backup generator) sized to your real consumption. Typical rural St Lawrence house runs on a 10 to 15 kW array + 20 to 40 kWh battery + 5 to 10 kVA inverter. Generator handles the worst-case week of cloud.
It's about 250 km from our depot, roughly 3 hours one way. We book St Lawrence and southern Isaac installs in 2 to 3-day blocks so crew accommodation is justified, no extra charge to you. Site survey can be remote (drone + photos you send) for smaller jobs.
Same price as St Lawrence town. We routinely cover the road between Marlborough and Carmila, plus the side roads through Clairview and the Bruce Highway frontage.
Cyclones do sometimes track inland past Sarina to the Isaac region. We use the same wind region C mounting standard as our coastal jobs. Off-grid setups are actually more resilient than grid-tied during storms because they don't depend on the network being back online.
Yes. Submersible bore pumps powered direct-DC from solar (no battery, no inverter), or AC pumps powered from the household system. Tank-top floats and contactor controllers wired in. Common ask on rural blocks; comes up about half the time on St Lawrence quotes.
We provide remote monitoring (Sungrow, Tesla, Fronius all push status to a dashboard) so we see faults before you do. Most issues are diagnosed and reset remotely. For physical site visits we schedule within 5 to 10 business days for St Lawrence; if it's urgent (no power, off-grid) we drive same-day.