Commercial Solar
Commercial Solar Engineered Around Your Business
Reduce your reliance on grid electricity with a commercial solar system designed around how your business actually uses power.
At Guwing Green, every commercial solar project starts with engineering. Our SAA-accredited design engineers assess your site, daytime electricity demand and operational requirements before specifying the system. Installation is handled by our own accredited team, backed by more than 25 years of rooftop experience.
From 15kW rooftop systems to large-scale commercial installations, we design around the needs of your facility rather than fitting your business into a standard solar package.
- Sydney metro service area
- In-house SAA-accredited team
- Response within 24 hours, business days
100 KW · RUSSELL LEA NSW
Why Choose Guwing Green
Why Choose Guwing Green for Commercial Solar?
Commercial solar is a long-term investment, and the right system depends on much more than available roof space. Electricity demand, tariff structure, switchboard capacity, structural conditions and operating hours all influence what will deliver the best result.
Guwing Green combines detailed commercial engineering with practical rooftop installation, so the system is designed around how your facility actually operates.
- 01
Designed From Your Actual Energy Data
We analyse your interval electricity data to understand when and how your facility uses power. That allows us to model solar generation against your actual demand and build a more realistic picture of system performance and payback.
- 02
Commercial Engineering In-House
Our SAA-accredited engineering team handles the technical design of the system, including electrical design, equipment selection and the documentation required for the project.
- 03
Equipment Selected for the Project
Panels, inverters and mounting systems are specified according to the requirements of the site, including efficiency, temperature performance, durability, warranty support and system compatibility.
We are not tied to a single manufacturer or product range.
- 04
Clear Scope Before You Commit
Your proposal sets out the system design, component specifications, expected performance, project scope and indicative timeline before you proceed.
You know what is being proposed, how it has been designed and what is included before signing a contract.
Design and installation are handled by Guwing Green’s own accredited engineering and installation teams rather than being passed between unrelated contractors.
Commercial Returns
What We Model in Your Commercial Solar Proposal
A commercial solar investment should be backed by numbers your finance team can check. We model your energy use, expected system output and financial performance using site-specific data and the current incentives available to your project.
- 01
Reduced Grid Electricity Costs
Solar allows your business to generate more of the electricity it uses on site, reducing the amount of power purchased from the grid during solar-generating hours.
We model expected solar generation against your interval consumption data so you can see how much of your existing electricity demand the proposed system could offset.
- 02
Payback and Financial Return
Your proposal sets out the expected system cost, modelled electricity savings and indicative payback based on your site data and the assumptions used in the analysis.
The figures are presented clearly so your finance team can see how the projected financial return has been calculated.
- 03
Available STC Incentives
Eligible commercial solar systems can receive Small-scale Technology Certificates under the federal Small-scale Renewable Energy Scheme.
Where applicable, Guwing Green applies the estimated STC value as an upfront benefit in your proposal. Eligibility depends on factors including system size and installation date.
- 04
Demand Charge Reduction
For businesses on demand tariffs, we use your interval data to identify peak demand periods and model how the proposed solar system could reduce your peak draw from the grid.
The potential reduction depends on your tariff structure, load profile and when peak demand occurs.
- 05
Commercial Finance Options
Guwing Green works with finance providers including Brighte, Plenti and Solaris Finance to provide commercial green loan options.
Each lender has its own eligibility requirements, vetting process and credit checks, so finance remains subject to approval.
- 06
System Size and Expected Generation
Commercial solar systems can range from 15kW through to 5MW. The appropriate size depends on factors including available roof space, your electricity usage patterns and project budget.
We use your interval data to model expected solar output and develop a system around the requirements of your site.
Sizing & Modelling
How We Size a Commercial Solar System
Commercial solar systems can range from 15kW to 5MW. The right size depends more on available roof space, electricity use and budget than on industry type alone, so we start with measured data rather than a standard system size.
We analyse 12 months of 30-minute interval data to understand your consumption patterns and demand spikes. Using our own modelling software, we compare expected solar generation with your actual electricity use and estimate the potential reduction in peak demand charges.
- Commercial system range
- 15 kW – 5 MW
- Commercial system range
- 30-minute interval data
- 12 months
- 30-minute interval data
- Typical analysis time
- 1 – 3 days
- Typical analysis time
From meter data to proposal
- 1
Meter data
We analyse 12 months of 30-minute interval data for your site.
- 2
Load analysis
We identify your consumption patterns and the demand spikes that affect your electricity costs.
- 3
Solar modelling
Our software models expected solar generation against your actual electricity use and available roof space.
- 4
Commercial proposal
You receive the proposed system design and financial modelling, including payback figures and an estimated reduction in peak demand charges.
Work Process
Our Commercial Solar Delivery Process
From interval data analysis and system design through to grid approval, installation and switch-on, each stage is managed around the requirements of your site and electricity network
- 01
Consultation & Energy Analysis
Commercial solar starts with understanding how your site actually uses electricity. We’ll review your requirements and analyse your interval data to identify consumption patterns, demand spikes and opportunities for solar to reduce grid usage.
- 02
Solution Design & Financial Modelling
Our SAA-accredited engineering team models a system around your load profile, available roof space and project requirements.
The design also accounts for the connection requirements set by your local electricity distributor, including export limits or additional protection where required. We then prepare a proposal outlining the recommended system and its expected financial performance.
- 03
System Installation & Grid Switch-On
Our project management team handles the grid connection application with your electricity distributor.
Once approval is received, we coordinate installation with our in-house accredited team and aim to install the system within 2 to 4 weeks. After installation, the system is tested, commissioned and set up for ongoing monitoring.
Commercial Experience
Sectors We Have Worked With
Guwing Green has commercial solar experience across manufacturing, automation and warehouse environments. While each sector has different operating demands, system sizing still comes down to the site itself, including available roof space, electricity usage and project budget.
- Manufacturing
- Automation
- Warehouses
Who We Are
Meet the Team Behind Guwing Green
When you partner with Guwing Green, you work with experienced renewable energy engineers and technicians across system design, project delivery and installation.
Paul Trad
Founder & Managing Director
Paul is a solar engineer with a Master’s in Photovoltaic Systems from UNSW. Across his career, he has advocated for, designed and delivered more than 30 MW of solar energy.
Brad Fawcett
Director of Battery Solutions
Brad is a Level 2 electrician with more than 25 years of experience in renewable energy. He has personally installed and commissioned more than 40 MW of battery systems across Australia.
Kevin Ratanawira
Lead Engineer, Solar & EV
Kevin is a solar engineer and Guwing Green’s lead project engineer, with extensive experience in system design and risk assessments. Before joining Guwing Green, he worked as a solar engineer with a Tier 1 company and contributed to the design of multiple solar farms.
Joe Kalifa
Lead Electrical & Solar Technician
Joe leads the safe and efficient installation of solar and electrical systems at Guwing Green and ensures the team’s safety management plans are implemented on site.
FAQ
Frequently Asked Questions
Answers to some of the questions businesses ask us about commercial solar.
What size commercial solar system does my business need?
There is no standard system size based on industry alone. We analyse 12 months of 30-minute interval data to understand your electricity usage patterns and demand spikes, then consider factors such as viable roof space and project budget.
Guwing Green works on commercial systems ranging from 15kW to 5MW.
How long does commercial solar installation take?
Our project management team handles the grid connection application with your electricity distributor. Once approval is received, we liaise with our SAA-accredited installers and aim to install your system within 2 to 4 weeks.
How does commercial solar reduce peak demand charges?
Demand charges are generally based on the highest demand recorded during the relevant peak periods under your electricity plan.
We analyse your interval data and use our own modelling software to compare expected solar generation with your site’s electricity demand and estimate the potential reduction in peak demand charges.
Ready to See What Commercial Solar Could Deliver for Your Business?
Speak with Guwing Green’s SAA-accredited engineering team about your site, electricity use and project goals. We’ll review your requirements and develop a commercial solar proposal around how your facility actually uses energy.
Response within 24 hours during business days · Sydney metro