CEC Accredited Corporate & Commercial Solar for Melbourne Properties
Commercial Solar Engineered for Melbourne's Corporate and Commercial Market
MainSwitch Energy designs and installs solar systems for corporate properties, multi-tenancy buildings, strata complexes, and large commercial sites across Melbourne. Every system meets CEC guidelines, AS/NZS 3000, and DNSP grid connection requirements - with full commissioning documentation for asset registers and compliance records.
Over 250+ satisfied users

Corporate and Commercial Solar
Melbourne’s North-East Solar Specialists

Commercial Solar That Meets Melbourne's Compliance Requirements
Corporate and commercial solar installations require a different level of engineering rigour than residential work. Multi-tenancy buildings, strata complexes, and corporate properties have embedded network considerations, landlord-tenant energy arrangements, and compliance requirements that must be addressed at the design stage. MainSwitch Energy has the CEC Accreditation and engineering capability to handle all of these.
Every MainSwitch Energy commercial installation includes dedicated circuit protection, RCD protection on all applicable circuits, inverter placement and ventilation to manufacturer specifications, cable sizing to AS/NZS 3008, and DNSP grid connection compliance. We provide detailed commissioning reports suitable for building asset registers and corporate compliance documentation.


The Business Case for Commercial Solar in Melbourne
Commercial properties in Melbourne face significant and escalating electricity costs. A well-designed commercial solar system directly reduces energy expenditure by offsetting the majority of a building’s daytime consumption. For multi-tenancy properties, solar can also generate a competitive advantage in leasing – tenants increasingly factor energy costs into occupancy decisions.
Corporate properties with sustainability commitments benefit from documented carbon reduction outcomes. MainSwitch Energy’s commissioning documentation includes performance projections and first-year generation data suitable for ESG reporting and corporate sustainability disclosures.
MainSwitch Energy Commercial Installation Scope
- Commercial site energy assessment and load profile analysis
- CEC Accredited system design to AS/NZS 3000 and AS/NZS 3008
- Embedded network assessment for multi-tenancy and strata buildings
- DNSP grid connection application and approval management
- RCD protection and dedicated circuit installation
- Inverter and metering installation to manufacturer specifications
- Full commissioning documentation for asset registers and compliance
Commercial Solar System Sizes for Melbourne Properties
Commercial system sizing depends on your building’s energy consumption, roof space, and tenant or owner occupancy structure. Office buildings typically start at 30 kW. Large commercial properties may require 100 kW to 300 kW with battery storage integration. MainSwitch Energy provides a detailed system proposal following a site energy assessment – not a generic quote from a size guide.
Commercial battery storage integration is available for buildings with critical systems, shift-based tenants, or peak demand management requirements. Battery systems are designed and installed to the same AS/NZS 3000 and AS/NZS 3008 standards as the primary solar installation.
- Commercial solar systems from 30 kW to 300 kW+
- Embedded network and strata-compatible system designs
- Full AS/NZS 3000 and AS/NZS 3008 compliance documentation
- DNSP grid connection management across all Melbourne network zones
- ESG performance documentation for corporate sustainability reporting
THE MAIN SWITCH DIFFERENCE
Why Choose Us?
MainSwitch Energy is accountable at every step - from the first quote to the lifetime of your system. Here is what sets us apart.
- Required for STC eligibility and quality assurance. Every installation certified by an accredited designer and installer.
End-to-End Project Management
From site assessment to commissioning documentation. One point of contact for your entire project.ESG Documentation Included
Performance reports, CO2 offset data, and commissioning records included for sustainability reporting.Lifetime Workmanship Warranty
Every electrical installation backed by our lifetime warranty. No expiry date. No conditions.Fixed-Price Commercial Proposals
Formal fixed-price proposal before any commitment. Scope, timeline, and cost all documented.STC Rebate Documentation Handled
We manage the full STC process and apply the discount at point of sale. No administrative overhead for your team.
GOT QUESTIONS?
Frequently Asked Questions
Everything you need to know about MainSwitch Energy's Corporate Commercial Solar service.
There is no strict minimum, but most Melbourne commercial properties start at 30 kW. System size is determined by your building's energy consumption, roof space, and financial goals. MainSwitch Energy conducts a commercial site assessment before making any size recommendation.
Yes. MainSwitch Energy has experience designing solar systems for strata and multi-tenancy buildings. These projects require an embedded network assessment and careful consideration of shared energy arrangements. We manage all aspects of the design and compliance process for these property types.
Project timelines vary by system size and site complexity. A 30-50 kW rooftop installation on a single-tenancy commercial building typically takes 2 to 3 weeks from signed proposal to commissioning. Larger systems, multi-tenancy buildings, or projects requiring structural engineering and planning approvals take longer. We provide a detailed project schedule in the proposal so stakeholders can plan around the installation.
Project timelines vary by system size and site complexity. A 30-50 kW rooftop installation on a single-tenancy commercial building typically takes 2 to 3 weeks from signed proposal to commissioning. Larger systems, multi-tenancy buildings, or projects requiring structural engineering and planning approvals take longer. We provide a detailed project schedule in the proposal so stakeholders can plan around the installation.
Project timelines vary by system size and site complexity. A 30-50 kW rooftop installation on a single-tenancy commercial building typically takes 2 to 3 weeks from signed proposal to commissioning. Larger systems, multi-tenancy buildings, or projects requiring structural engineering and planning approvals take longer. We provide a detailed project schedule in the proposal so stakeholders can plan around the installation.
Project timelines vary by system size and site complexity. A 30-50 kW rooftop installation on a single-tenancy commercial building typically takes 2 to 3 weeks from signed proposal to commissioning. Larger systems, multi-tenancy buildings, or projects requiring structural engineering and planning approvals take longer. We provide a detailed project schedule in the proposal so stakeholders can plan around the installation.
Project timelines vary by system size and site complexity. A 30-50 kW rooftop installation on a single-tenancy commercial building typically takes 2 to 3 weeks from signed proposal to commissioning. Larger systems, multi-tenancy buildings, or projects requiring structural engineering and planning approvals take longer. We provide a detailed project schedule in the proposal so stakeholders can plan around the installation.
We specify commercial-grade monocrystalline panels and three-phase string inverters from manufacturers with proven Australian track records and locally-backed warranty support. Specific brands are recommended based on your system size, building type, and performance requirements. We do not specify products based on margin – we specify based on what performs consistently in Melbourne conditions and carries manufacturer support that protects your long-term investment.
Yes. Battery storage for commercial properties serves two main functions: demand peak shaving, which reduces your maximum demand charge, and energy time-shifting, which moves midday solar surplus to morning and afternoon periods when the building’s consumption is higher. The economics depend on your tariff structure and load profile. We model both scenarios and present the financial case clearly before recommending battery integration.
Most commercial rooftop solar installations in Victoria are permitted development and do not require a planning permit. Exceptions include heritage-listed buildings, buildings in design or development overlay zones, and installations that materially alter the building’s external appearance. We advise on planning requirements during the site assessment and manage any required approvals as part of the project scope.
A commercial building consuming 80,000 to 120,000 kWh per year with strong daytime occupancy can typically achieve a simple payback period of 4 to 7 years on a well-designed solar system after the STC rebate. Actual ROI depends on your specific tariff structure, the proportion of solar generation consumed directly versus exported, and ongoing electricity price movements. We model your specific site’s financial case using your actual interval data before you commit to a proposal.
Yes. Modern commercial inverters support data output via Modbus, BACnet, or web-based APIs that can integrate with most building management systems. We configure monitoring and data feeds as part of commissioning. Real-time generation data, consumption data, and fault alerts can all be streamed to your BMS or facilities management platform. We confirm integration requirements with your IT and facilities team before installation.
Make the Switch Today
Ready to Cut Your Commercial Property Energy Costs?
MainSwitch Energy designs and installs commercial and corporate solar systems across Melbourne. CEC Accredited. AS/NZS 3000 compliant. Lifetime warranty. Full DNSP management.







