Industrial & Commercial Solar Wollongong

Want to reduce your energy costs?


Solar energy solutions offer Wollongong businesses a smart path to long-term savings, reduced electricity bills, greater control over energy use, and less dependence on traditional power sources.


With Greentech Engineering Solutions, your business can generate electricity onsite using advanced commercial solar power technology. This approach helps soften the blow of rising utility rates while supporting cleaner energy use.



Cut Overheads with Onsite Generation: Many local businesses face rising operational costs, with electricity among the biggest contributors. By switching to a solar system, you can create your own power directly from your rooftop. Use what you need. Send the excess solar energy back to the grid. Your provider may offer credits through feed-in tariffs, usually between 3.3 and 12 cents per kilowatt-hour, helping lower your total outlay even further.


Secure Long-Term Savings: A commercial solar setup can act as a buffer against future energy price fluctuations. It’s not just a green upgrade that reduces your carbon footprint. It’s also a smart financial move. Over time, the return on investment becomes clear through reduced running costs. This allows you to reinvest in your core operations, all while contributing to a lower carbon impact.

Solar panels with a city skyline in the background.

Why Choose Greentech Engineering Solutions

At Greentech Engineering Solutions, we bring experience, precision, and technical depth to every project involving solar power systems. Our work extends beyond just solar panels — we design and install complete, integrated solutions that support long-term performance. Our team in Wollongong handles every step — from planning and installation to system integration. All work is carried out by SAA-accredited technicians who focus on performance, longevity and reliability.


With the right setup in place, your business can harness renewable energy, reduce operating costs, and make a confident step toward cleaner power and measurable results.

Our SAA-certified solar power installers are proficient in:


âś“ Designing commercial solar systems for projects ranging from 10 kW to 5 MW.

âś“ Facilitating grid connection applications and commissioning the systems.

âś“ Providing a 10-year warranty for all commercial and industrial projects.

âś“ Assisting commercial solar system owners in system health checks at minimal costs.

âś“ Monitor all installations of commercial solar panels and systems and regularly update customers.

âś“ Managing commercial solar panel installations from start to finish.

How Does Solar Power Work for Commercial Properties?


Your business can’t afford to be without power. That is why our commercial solar power solutions include educating our clients on how commercial solar systems work and why they'll never be without electricity.


âś“ Unlike residential consumers who get billed for the kWh consumption, business customers are required to pay demand charges on a kW basis.

âś“ These demand charges can make up a significant part of the energy bill and are generally calculated by reviewing the greatest amount of power you need during demand spikes in a billing cycle.

âś“ An expertly designed solar system with battery storage can help reduce demand charges by discharging energy at peak times and allow you to reduce the amount you owe on your energy bill.

  • Solar System Design

    At Greentech Engineering Solutions, we specialise in developing solar strategies for commercial sites across Wollongong. Our process begins with a comprehensive feasibility analysis. We assess the location, examine site-specific solar potential, and review system compatibility. From energy output projections to electrical network integration or battery storage design, every element is planned with precision. During this stage, solar panels are positioned strategically to maximise output, reduce power bills, and deliver consistent performance. By switching to clean energy, businesses can benefit from long-term savings and greater control over energy use. Our solar power engineers adapt each solution to suit your property, operation, and consumption profile, helping drive reliable results over time.

  • Solar System Installation

    With industry certification and years of hands-on experience, our solar power installers provide complete system builds. Whether grid-connected or independent setups, we manage each project from beginning to end. This includes solar panels mounting, inverter connection, and optional battery integration for hybrid use. The result is a smooth transition to clean, cost-effective energy.

  • Solar System Maintenance

    To keep systems operating at peak levels, Greentech Engineering Solutions delivers proactive maintenance services for entire solar power systems, including solar panels and solar batteries. We do routine checks, performance testing, and troubleshooting. We help safeguard your investment while preserving the cost-saving benefits produced by every kilowatt-hour. Less risk of interruptions. More consistent energy flow.

  • Inverter Repair and Warranty Claims

    Inverter issues can affect performance. That’s why we offer diagnostic and repair services regardless of where your solar equipment was purchased. Greentech Engineering Solutions also works with leading solar manufacturers to support warranty claims, helping streamline the process and restore functionality quickly.

  • Battery Storage Systems

    For commercial operations considering solar batteries, we provide a full-service offering. From concept to commissioning, our battery storage projects are supported by detailed performance assessments. These studies help determine viability based on usage patterns and return potential.


    Solar batteries work alongside your existing solar panels to capture excess energy produced during daylight hours. Stored solar power can then be used during peak demand periods or when sunlight is limited. This helps reduce power bills, boosts energy independence, and provides greater flexibility in how energy is managed across your operations.


    Solar batteries add another layer of resilience, helping your business stay efficient and prepared for varying load demands.

  • Electric Vehicles (EV) Charging Stations

    Greentech Engineering Solutions supplies and installs EV charging stations across a wide range of commercial and residential applications, including offices, car parks, and private homes. Our solutions are turn-key, fully installed, and fully certified. Designed to support the shift toward a sustainable future, these systems allow drivers to charge using renewable energy generated onsite. By connecting EV infrastructure with solar systems, businesses and homeowners can access near free power for their vehicles, reducing reliance on fossil fuels and lowering long-term transport costs. All components meet strict quality benchmarks and are backed by trusted global brands.

Industrial Solar Energy Solutions


Reduce overheads, improve efficiency, and strengthen energy independence. Greentech Engineering Solutions helps industrial facilities shift to solar with confidence and clarity. From planning to installation and aftercare, we offer a full-service approach to solar energy built for high-demand environments.


Our experience spans across industrial-scale projects, where system design, load management, and cost-efficiency go hand in hand. We don’t just install solar panels. We deliver complete solar power systems that support long-term performance and measurable value through every stage of the energy cycle.

Grid Application

Going through the application process with energy distributors can be time-consuming. That’s where our expertise comes in. We handle the details, prepare the paperwork, and submit the documentation. Every requirement is addressed upfront to reduce complications or back-and-forth delays. This helps keep your project on track and moves your system closer to approval without unnecessary setbacks.

Grid Connection

Connecting an industrial solar system to the grid requires more than a basic setup. It calls for a clear understanding of network limitations, compliance standards, and generation capacity. We assess all these factors early. We look at cost implications, examine how the connection will affect your current energy profile, and study how energy flows between your site and the grid. Our process makes it possible to move forward with a setup that supports operational efficiency while meeting regulatory expectations.

Solar panels on a grassy field.

Injection Testing and Commissioning


Greentech Engineering Solutions supports commercial and industrial solar projects with advanced testing and commissioning services. We work closely with installers to verify compliance with requirements set by distribution network service providers (DNSPs), helping keep installations aligned with industry protocols.

Secondary Injection Testing

Injection testing is mandatory for most electrical distribution networks and is essential to getting your system commissioned. We use CMC 356 for secondary injection testing.

Power Quality Testing

Power quality testing is a crucial step for commercial solar installations. It confirms that your system does not interfere with voltage stability across the grid. Our specialists use the Fluke 435 analyser to perform accurate PQ assessments. This helps reduce complications during grid connection and allows your project to move forward with greater speed and clarity.

HV Solutions


Greentech Engineering Solutions provides high-voltage photovoltaic (HV PV) systems for utility-scale operations, decentralised networks, and large solar installations. These solutions are designed for performance across expansive energy landscapes, such as microgrids and solar farms.


Transmitting electricity at higher voltages allows for more efficient energy transfer across long distances. It reduces losses, supports system stability, and enhances the overall output of large-scale renewable energy projects powered by solar panels and advanced solar power systems.

We design custom-built solutions for the following:

  • Microgrids
  • Utility-scale Solar Facilities
  • Solar Farms
  • Own Engineering
  • ...and more.

We serve all of Australia and also have accredited industrial and commercial solar installers in the following areas:


Ready to get your industrial or commercial solar power project in Wollongong started?

Contact us today for a complimentary consultation!

Tesla
ABB
Longi
Sungrow
Sonnen
Solis
SMA
Risen
LG Chem
Huawei
Jinko
Goodwe
Fronius
BYD
Canadian Solar
Enphase