The New Commercial Solar Rebate Expansion
Mackay Businesses Can Cut Commercial Solar Costs
The Federal Government has confirmed the largest commercial renewable energy incentive expansion in over a decade: from 1 October 2026 (Pending), eligibility under the Small-scale Renewable Energy Scheme (SRES) increases tenfold from 100kW up to 1 Megawatt (1MW).
For industrial facilities in Paget, agribusinesses across the Pioneer Valley, commercial buildings in Mackay, and mining service operators through the Coalfields, this policy change drastically reduces the payback period on medium-to-large solar installations.
Eligible commercial solar arrays up to 1MW now receive an immediate point-of-sale discount worth roughly 20% off total upfront installation costs, directly reducing your capital expenditure before the system is even turned on.
Tailored for Mackay's Industrial & Rural Operations
At Energy Base, we don’t believe in generic sales pitches or sub-contracted installations. Founded in Mackay in 2010 and led by local Electrical Engineer Brendan Camilleri, our team brings true engineering rigor to every commercial power project.
Operating out of our Paget facility on Connors Road, we handle every stage of your solar investment in-house, from shade verification using Solar Pathfinder technology to structural batten inspection and Ergon Energy grid protection approvals.
Whether you manage an engineering workshop in Paget, a cold storage distribution hub, a rural processing shed, a local school, or a multi-tenant commercial centre, this federal expansion transforms unused roof space into a high-yielding financial asset.
Key Changes Under the 2026 Commercial Incentive
- 20% Point-of-Sale Rebate: From 1 October 2026, systems up to 1,000kW (1MW) qualify for Small-scale Technology Certificates (STCs), creating an immediate point-of-sale invoice discount worth around 20% of system costs.
No 100kW Cap or LRET Friction: Eliminates the old “100kW incentive cliff.” You no longer need to manage annual Large-scale Generation Certificates (LGCs) under the complex LRET scheme for systems over 100kW.
Six-Figure Capital Savings: Reduce upfront financial commitments dramatically. Government estimates confirm savings of ~$68,000 on a 250kW system, ~$136,000 on a 500kW build, and up to $250,000 on a 1MW installation.
30% to 40%+ Typical ROI: Combining upfront STC discounts with Mackay’s high solar irradiance and daytime commercial tariffs delivers rapid capital payback—often in under 3 to 4 years.
What the Numbers Look Like for Your Bottom Line
Historically, Australia’s SRES scheme capped simple point-of-sale discounts at 99kW. Commercial operations needing 200kW or 500kW were forced to limit their system size artificially or enter the administrative burden of the Large-scale Renewable Energy Target (LRET).
Upfront Rebate Savings Matrix
| System Capacity | Pre-October 2026 Status | Post-October 2026 SRES Status | Estimated Upfront Rebate Savings |
| 100kW System | Qualified for STCs | Qualifies for STCs | ~$27,000 – $35,000 off |
| 250kW System | Forced into complex LRET | Qualifies for Instant STC Discount | ~$68,000 off |
| 500kW System | Forced into complex LRET | Qualifies for Instant STC Discount | ~$136,000 off |
| 1,000kW (1MW) | Forced into complex LRET | Qualifies for Instant STC Discount | Up to ~$250,000 off |
Batteries & Demand Reduction
A commercial solar array is the foundation of energy cost management, but combining solar with energy storage and smart load management unlocks further savings:
1. Shaving Peak kVA Demand Charges
Commercial power bills across Ergon’s network frequently include heavy peak demand charges based on your highest half-hourly power draw. Integrating battery storage allows your site to discharge battery power during heavy motor startups or machinery load spikes, capping your kVA demand fees.
2. Instant Asset Write-Off & Tax Benefits
Commercial solar and battery installations are depreciable business assets. Depending on your corporate accounting structure, finance or cash purchases can deliver substantial first-year tax write-offs alongside immediate electricity cost reductions.
Thinking About Solar & Battery?
Grab our free guide: 8 Tips for Choosing a Solar & Battery Combo (2025 Edition)
Packed with practical advice for Mackay homes, this guide breaks down rebate info, payback times, and what to avoid when buying a battery. Get the facts before you commit.
Frequently Asked Questions
When does the expanded 1MW commercial solar rebate take effect?
The expanded scheme commences on 1 October 2026, raising the Small-scale Renewable Energy Scheme (SRES) limit from 100kW up to 1MW.
Does our business need to apply for the government rebate directly?
No. Energy Base handles the STC certificate creation and administration. The total rebate value is applied directly as an upfront discount on your purchase quote.
Does Energy Base service regional areas outside of Mackay?
Yes. From our central warehouse in Paget, our full-time installation team services the entire region, including North Mackay, Sarina, the Whitsundays, Bowen, Nebo, Moranbah, and the broader Bowen Basin Coalfields.
Can we start planning and engineering our commercial solar project now before October 1, 2026?
Absolutely—and we strongly recommend it. Preparing early allows our Paget engineering team to complete your Solar Pathfinder shade analysis, structural batten checks, and Ergon Energy network connection approvals ahead of time. By completing feasibility, design, and Ergon grid lodging now, your project will be ready for rapid installation and STC certificate generation the moment the expanded scheme commences.
