COMMERCIAL SOLAR
Commercial solar Mackay, 30 kW to 500 kW
Fed by AEMO interval data, three-scenario PDF in 48 hours, zero shutdown on install.
48-hour fixed-quote turnaround for Mackay businesses.
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. 48-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.
Sectors we serve
Industries we cover across Mackay and the Bowen Basin
Solar and electrical work for regional QLD operators, fitted around your shutdown windows and budget cycles.
Agribusiness and irrigation
14 sites since 2022
Sugar mills, irrigation pumps and cane farm sheds. Daytime grid draw cut by 60 to 75 percent on average.
Mining and resources
9 sites since 2022
Workshops, admin buildings and accommodation villages on Bowen Basin contracts.
Logistics and cold storage
7 sites since 2022
Cold rooms, freight depots and refrigerated transport hubs. Battery-backed for nightly load shedding.
Light industrial and workshops
11 sites since 2022
Fabrication shops, mechanic bays and trade premises with high daytime load profiles.
Where the work happens
Project counts by service and industry
Mackay-region sites Brad and the crew have delivered.
| Service | Sugar and agribusiness | Mining and resources | Hospitality and tourism | Trades and logistics |
|---|---|---|---|---|
| Commercial solar | 4 | 3 | 2 | 4 |
| Battery and microgrid | 1 | 1 | 1 | 2 |
| Three-phase upgrades | 2 | 2 | 1 | 3 |
| EV charging infrastructure | 2 | 1 |
Project counts reflect work delivered by Brad and the Mackay crew.
Service areas
Mackay-local service hub, with project crews across the Whitsundays and Bowen Basin.
Recent commercial work, by the numbers
Mackay-region projects delivered in the last 18 months. References available on request.
1.2 MW
Installed since 2022
48 h
Quote turnaround
37
Sites commissioned
0
Hand-back surprises

Couriers and logistics
Lolee's Couriers, Mackay
- Scope
- 28 kW
- Duration
- 4 weeks
Depot daytime load covered from the roof; courier fleet charges off solar during the 11 to 3 window.
Visit Lolee's CouriersProcurement
Safety record matters when you sign a contract
Mid-tier QLD operators ask for these numbers before they sign. Here they are.
0
LTI in last 24 months
100%
Crew SWMS-compliant
$20M
Public liability cover
Class A
QLD electrical licence
Audit packs available on request: SWMS, JSA, insurance certs and electrical contractor licence (Class A QLD).
Request compliance pack- Public Liability: $20M cover across every site
- Working at Heights: All field crew certified
- White Card: Required for any construction site work
Frequently asked questions
About commercial solar.
Typical 100 kW commercial system on Ergon Large Business tariffs pays back in 3.8 to 5.2 years, depending on your daytime load profile. We model three scenarios (conservative / base / aggressive) against 12 months of your actual interval data so you see the range, not a single rosy number.
Yes. Any commercial system over 30 kW is treated as embedded generation and requires a formal connection application with Ergon Energy. Approval typically takes 30 to 60 business days. We lodge the application on day one of design so the network approval runs in parallel with procurement, not after.
For 2025-26 the temporary $20,000 instant asset write-off applies to small business (under $10M turnover). Most commercial solar projects exceed that threshold and depreciate over the asset life. Talk to your accountant about the small business energy incentive (bonus 20% deduction for energy-efficient assets), which often applies.
No, in 99% of cases. The DC roof work happens with no impact on your power. The final cutover to live (the changeover at the switchboard) takes 30 to 60 minutes; we schedule it for a Sunday or after-hours window so trading is not interrupted.
STCs (small-scale technology certificates) apply to systems under 100 kW and are claimed once upfront, discounting your install cost. LGCs (large-scale generation certificates) apply to systems over 100 kW and are earned over 15 years per MWh generated. We model both pathways and recommend the better option for your system size.
We send Brad on site to inspect the roof structure, purlin spacing and material before quoting hardware. If your roof needs strengthening or replacement first, we tell you upfront. We won't quote a system that compromises the building.
Yes. PPA (you pay only for the kWh generated, no upfront cost) is available for commercial systems over 100 kW with our finance partners. We also offer chattel mortgage and operating lease for capex-friendly structures. The 48-hour quote PDF shows all three options.