12 individual solar systems. 68.68kW of combined capacity. $15,428 in government incentives. That’s what Rossiter Constructions Pty Ltd at 53 Sunshine Avenue, St Albans VIC 3021 now has on their roof — a fully grid-connected commercial solar installation designed around the property’s multi-unit structure rather than forced into a single oversized system. Green Electric Solutions delivered every system, handled all STC documentation, and coordinated the full installation across September 2026.
A 68.68kW Commercial Solar Installation Built Across 12 Units — St Albans, VIC 3021
Green Electric Solutions delivered a 12-unit commercial solar installation at 53 Sunshine Avenue, St Albans VIC 3021, with each unit receiving its own dedicated solar system. Across the project, 136 solar panels and 12 individual inverters were installed to provide each commercial unit with its own grid-connected solar generation.
| Project Detail | Specification |
|---|---|
| Project Location | 53 Sunshine Avenue, St Albans VIC 3021 |
| Client | Rossiter Constructions Pty Ltd — Commercial & Industrial Builder, est. 1997 |
| Commercial Units | 12 |
| Total Solar Panels | 136 |
| System Configuration | 4 × 6.06kW + 8 × 5.555kW |
| Panel Distribution | 4 units × 12 panels; 8 units × 11 panels |
| Total Inverters | 12 |
| Inverter Setup | 1 dedicated inverter per unit |
| Battery Storage | None |
| System Type | New, grid-connected solar |
| Total Government Incentive | $15,428 (406 STCs × $38) |
| Accreditation | CEC-accredited |
| Compliance | AS/NZS 4777.2:2020 and applicable Australian standards |
| Installation Period | September 2026 |
Project configuration: Each commercial unit has been equipped with its own solar generation system, including dedicated panels and an individual inverter. This approach keeps the 12 systems separately configured rather than combining the entire project behind a single inverter.
A Unit-by-Unit Commercial Solar Installation for Rossiter Constructions
One unit. One dedicated system. One clearly documented energy solution.
Unit 1 – 6.06kW Commercial Solar Installation | St Albans VIC 3021
Green Electric Solutions installed a dedicated 6.06kW solar system for Unit 1, using 12 solar panels and a Fronius Symo inverter. The system was installed on 8 September 2026 as part of the wider 12-unit commercial solar project.
| Project Detail | Unit 1 |
|---|---|
| Solar Panels | 12 panels |
| Solar Capacity | 6.06kW |
| Inverter | Fronius Symo 8.2-3-M |
| Inverter Standard | AS/NZS 4777.2:2020 |
| STCs | 35 |
| Installation Date | 8 September 2026 |
Unit 2 – 6.06kW Commercial Solar Installation | St Albans VIC 3021
Unit 2 received its own 6.06kW solar installation, comprising 12 panels connected to a dedicated Fronius Symo inverter. The installation was completed on 7 September 2026.
| Project Detail | Unit 2 |
|---|---|
| Solar Panels | 12 panels |
| Solar Capacity | 6.06kW |
| Inverter | Fronius Symo 8.2-3-M |
| Inverter Standard | AS/NZS 4777.2:2020 |
| STCs | 35 |
| Installation Date | 7 September 2026 |
Unit 3 – 6.06kW Commercial Solar Installation | St Albans VIC 3021
For Unit 3, Green Electric Solutions delivered another dedicated 6.06kW solar system with 12 panels and a Fronius Symo inverter. The system was installed on 7 September 2026.
| Project Detail | Unit 3 |
|---|---|
| Solar Panels | 12 panels |
| Solar Capacity | 6.06kW |
| Inverter | Fronius Symo 8.2-3-M |
| Inverter Standard | AS/NZS 4777.2:2020 |
| STCs | 35 |
| Installation Date | 7 September 2026 |
Unit 4 – 5.555kW Commercial Solar Installation | St Albans VIC 3021
Unit 4 was equipped with a 5.555kW solar system comprising 11 panels and a dedicated Sanjing inverter. The installation was completed on 8 September 2026.
| Project Detail | Unit 4 |
|---|---|
| Solar Panels | 11 panels |
| Solar Capacity | 5.555kW |
| Inverter | Sanjing R6-5K-T2-AUS |
| Inverter Standard | AS/NZS 4777.2:2020 |
| STCs | 32 |
| Installation Date | 8 September 2026 |
Unit 5 – 5.555kW Commercial Solar Installation | St Albans VIC 3021
The Unit 5 installation includes 11 solar panels delivering 5.555kW of PV capacity, paired with a dedicated Sanjing inverter. The system was installed on 8 September 2026.
| Project Detail | Unit 5 |
|---|---|
| Solar Panels | 11 panels |
| Solar Capacity | 5.555kW |
| Inverter | Sanjing R6-5K-T2-AUS |
| Inverter Standard | AS/NZS 4777.2:2020 |
| STCs | 32 |
| Installation Date | 8 September 2026 |
Unit 6 – 5.555kW Commercial Solar Installation | St Albans VIC 3021
Unit 6 received a dedicated 5.555kW solar system with 11 panels and a Fronius Symo inverter. The installation formed part of the coordinated 12-unit project and was completed on 8 September 2026.
| Project Detail | Unit 6 |
|---|---|
| Solar Panels | 11 panels |
| Solar Capacity | 5.555kW |
| Inverter | Fronius Symo 8.2-3-M |
| Inverter Standard | AS/NZS 4777.2:2020 |
| STCs | 32 |
| Installation Date | 8 September 2026 |
Unit 7 – 5.555kW Commercial Solar Installation | St Albans VIC 3021
For Unit 7, Green Electric Solutions installed 11 solar panels with a combined capacity of 5.555kW, connected to a dedicated Fronius Symo inverter. The installation was completed on 8 September 2026.
| Project Detail | Unit 7 |
|---|---|
| Solar Panels | 11 panels |
| Solar Capacity | 5.555kW |
| Inverter | Fronius Symo 8.2-3-M |
| Inverter Standard | AS/NZS 4777.2:2020 |
| STCs | 32 |
| Installation Date | 8 September 2026 |
Unit 8 – 5.555kW Commercial Solar Installation | St Albans VIC 3021
Unit 8 was fitted with its own 5.555kW solar system, using 11 panels and a dedicated Sanjing R6-5K-T2-AUS inverter. The installation was completed on 8 September 2026.
| Project Detail | Unit 8 |
|---|---|
| Solar Panels | 11 panels |
| Solar Capacity | 5.555kW |
| Inverter | Sanjing R6-5K-T2-AUS |
| Inverter Standard | AS/NZS 4777.2:2020 |
| STCs | 32 |
| Installation Date | 8 September 2026 |
Unit 9 – 5.555kW Commercial Solar Installation | St Albans VIC 3021
The Unit 9 system provides 5.555kW of solar capacity from 11 panels, supported by a dedicated Sanjing inverter. The commercial solar installation was completed on 8 September 2026.
| Project Detail | Unit 9 |
|---|---|
| Solar Panels | 11 panels |
| Solar Capacity | 5.555kW |
| Inverter | Sanjing R6-5K-T2-AUS |
| Inverter Standard | AS/NZS 4777.2:2020 |
| STCs | 32 |
| Installation Date | 8 September 2026 |
Unit 10 – 5.555kW Commercial Solar Installation | St Albans VIC 3021
Unit 10 features an individual 5.555kW solar system with 11 panels and a dedicated Fronius Symo inverter. According to the project documentation, this system was installed on 1 September 2026.
| Project Detail | Unit 10 |
|---|---|
| Solar Panels | 11 panels |
| Solar Capacity | 5.555kW |
| Inverter | Fronius Symo 8.2-3-M |
| Inverter Standard | AS/NZS 4777.2:2020 |
| STCs | 32 |
| Installation Date | 1 September 2026 |
Unit 11 – 5.555kW Commercial Solar Installation | St Albans VIC 3021
Green Electric Solutions installed 11 panels with a total capacity of 5.555kW for Unit 11, paired with a dedicated Sanjing inverter. The installation was completed on 8 September 2026.
| Project Detail | Unit 11 |
|---|---|
| Solar Panels | 11 panels |
| Solar Capacity | 5.555kW |
| Inverter | Sanjing R6-5K-T2-AUS |
| Inverter Standard | AS/NZS 4777.2:2020 |
| STCs | 32 |
| Installation Date | 8 September 2026 |
Unit 12 – 6.06kW Commercial Solar Installation | St Albans VIC 3021
The final installation, Unit 12, includes 12 solar panels providing 6.06kW of capacity, connected to a dedicated Sanjing R6-5K-T2-AUS inverter. It completes the 12-system commercial solar configuration at the St Albans property.
| Project Detail | Unit 12 |
|---|---|
| Solar Panels | 12 panels |
| Solar Capacity | 6.06kW |
| Inverter | Sanjing R6-5K-T2-AUS |
| Inverter Standard | AS/NZS 4777.2:2020 |
| STCs | 35 |
| Installation Date | 8 September 2026* |
*The project record supports the 8 September 2026 installation date for Unit 12, although the extracted text does not display the date line as clearly as the other unit records.
Why This Commercial Solar Design Matters
The standout feature of this project is not simply its 68.68kW capacity — it’s the distributed design across 12 individual commercial units at 53 Sunshine Avenue, St Albans. Rather than one large system serving the whole building, each unit got its own setup: its own panels, its own inverter, its own compliance record.
For a multi-tenancy commercial development, that matters. It means each unit’s solar generation is clearly identifiable and separately documented — which is exactly what you want whether you’re the developer, a future tenant, or a property manager. It’s a smarter design for a smarter development.
Installation & Compliance
The project was installed and designed by Lachlan, a CEC-accredited installer, with each unit receiving its own installer statement confirming on-site completion, licensed electrical work, compliant panel and inverter selection, and grid-connection compliance under AS/NZS 4777.2:2020. Green Electric Solutions is named in the retailer declarations across all 12 units as the solar retailer for the project.
Important Note: The project-level summary states 406 STCs and $15,428 in government rebates. The individual unit forms are the primary installation records — final certificate quantities should always be confirmed against the project’s finalised documentation before use for financial or compliance purposes.
How Government Incentives Reduced the Cost of This Commercial Solar Project
The $15,428 saving on this project came entirely from 406 Small-scale Technology Certificates (STCs) at $38 each — created based on the system’s expected energy output over the deeming period and applied as a direct price reduction at the point of installation. No waiting for a rebate cheque. No claiming it back later. The saving came off the bill upfront.
| Project Financial Detail | Amount |
|---|---|
| Total Solar Capacity | 68.68kW |
| Estimated Annual Production | 44,015 kWh |
| Estimated Annual Savings | $1,990.40 |
| STCs | 406 |
| STC Value | $38.00 each |
| Total Government Incentive | $15,428.00 |
Note: STC values and eligibility are subject to applicable government rules and certificate market conditions. The figures above reflect the rebate documented for this specific project.
Victorian Businesses Can Also Access VEU Commercial Solar Discounts
Here’s something many Melbourne businesses don’t realise: on top of federal STCs, Victorian businesses installing solar systems between 30kW and 200kW may also qualify for a separate Victorian Energy Upgrades (VEU) Commercial Solar discount. This is a state government program, and it’s applied directly to your installation cost — but only if your installer is on the approved provider list.
Green Electric Solutions is officially listed on the VEU Commercial Solar provider list. That means we can stack both incentives — federal STCs and the Victorian VEU discount — on a single installation. Want to know exactly how much that adds up to for a system your size? Read the full breakdown of VEU commercial solar discounts and federal rebates for Victorian businesses.
Why Melbourne Businesses Choose Green Electric Solutions for Commercial Solar
When you’re investing in a commercial solar system, you need more than just a competitive price. You need an installer who handles the full scope — system design, electrical installation, compliance paperwork, STC processing, and VEU discount eligibility — so you’re not coordinating between multiple parties or chasing up paperwork months later. That’s what GES delivers on every project.
| Certification / Approval | What It Means for Your Commercial Solar Project |
|---|---|
| VEU Approved — Commercial Solar | Only VEU-listed providers can apply the Victorian Government commercial solar discount directly to your quote. GES is on the official list. |
| NET Approved Retailer | Meets national standards for transparent contracts, fair pricing, and consumer protection. |
| SAA Certified Installers | Every GES installer is licensed and independently audited for workmanship quality and electrical safety. |
| Solar Victoria Approved | Required to lodge Victorian government incentive applications and meet installation quality standards. |
| CEC Accredited Designer & Installer | Clean Energy Council accreditation covering system design, installation standards, and STC eligibility compliance. |
We’ve completed commercial solar installations across Melbourne and Victoria — different business types, different property configurations, different system sizes. The Rossiter Constructions St Albans project, with 12 separately documented systems under one coordinated installation, is a good example of the kind of multi-unit commercial work we handle regularly.
Our team services eligible commercial properties within 80km of Altona North — covering St Albans, Sunshine, Deer Park, Brimbank, Caroline Springs, Taylors Lakes, Sydenham, Keilor, and surrounding western Melbourne suburbs, as well as Melbourne’s north and south-east.
Frequently Asked Questions — Commercial Solar in Melbourne & Victoria
What is commercial solar and who is it for?
Commercial solar is a solar PV system designed to generate electricity for businesses — warehouses, factories, offices, retail stores, industrial sites, schools, medical centres, and more. If your business has available roof space and runs during daylight hours, it’s worth getting a site assessment to see what a system could do for your energy costs.
How does a commercial solar system work?
Panels on your roof convert sunlight into DC electricity. An inverter converts that into AC electricity your building can use. The power goes to your business first — reducing what you draw from the grid — and any surplus is exported. In a multi-unit setup like the Rossiter Constructions project, each unit has its own inverter and panel array working independently.
Can a commercial property have multiple solar systems?
Yes — and for multi-tenancy developments it’s often the right approach. The 12-unit development at 53 Sunshine Avenue, St Albans had a separate solar system installed for each unit, with individual inverters, panel arrays, and compliance documentation. GES assesses every site before recommending a configuration.
What government incentives are available for commercial solar in Victoria in 2026?
Two programs can stack: federal STCs (for systems under 100kW, applied upfront) and the Victorian VEU Commercial Solar discount (for 30–200kW systems, applied by a VEU-listed provider). The $15,428 on this Rossiter Constructions project came from 406 STCs at $38 each. Read the full breakdown of what Victorian businesses can access.
How long does a commercial solar installation take in Melbourne?
It depends on system size, roof access, and electrical complexity. The 12-unit St Albans project was completed across early September 2026, with units installed in a coordinated sequence. GES gives you a realistic timeline after the site assessment — and we work around your business operations where possible.
Does commercial solar need battery storage?
No. A grid-connected solar system like the one at St Albans works without batteries — panels and inverters supply power during daylight, and the grid covers any shortfall. Batteries can be added later if the energy profile justifies it, but they’re not required to make commercial solar worthwhile.
Does Green Electric Solutions install commercial solar outside St Albans?
Yes — we cover Melbourne and Victoria within 80km of Altona North. Browse all our completed commercial solar installations to see the range of projects we’ve delivered across different Melbourne suburbs and business types. All commercial projects include full STC and VEU incentive processing.
How do I get a commercial solar quote from Green Electric Solutions?
Fill in the form below with your property address and a bit about your electricity situation. A GES commercial solar specialist will be in touch to arrange a free site assessment — covering your roof, electrical setup, energy consumption, and the exact government incentives your system qualifies for. No cost, no obligation.
Commercial Solar Installation St Albans & Melbourne Service Area
Green Electric Solutions installs commercial solar across Melbourne and regional Victoria from our Altona North base. We service eligible properties within 80km of Altona — including St Albans, Werribee, Point Cook, Tarneit, Truganina, Sunshine, Caroline Springs, Melton, Brimbank, Keilor, and Deer Park.
Whether it’s a single-tenancy warehouse, a retail strip, a school, or a multi-unit commercial development like the Rossiter Constructions project, each system is designed around the specific property — not a one-size-fits-all package. View our commercial solar project gallery for completed installations across Victoria.
Ready to Put Your Commercial Roof to Work?
The Rossiter Constructions project shows what’s possible when commercial solar is designed properly — 68.68kW across 12 units, 136 panels, $15,428 in government incentives, and a system that’ll generate an estimated 44,015kWh per year. If your business or development is ready for the same, the first step is understanding what your site can support.
Talk to a Commercial Solar Specialist
Tell us about your property and energy needs. We’ll come to you, assess the site, and give you a clear picture of system options, costs, and the exact government incentives you qualify for.
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