Maximise your solar investment and safeguard your energy security with advanced battery storage systems.
Our BESS solutions integrate seamlessly with your solar system, helping your business cut costs, store excess energy and maintain operations during outages.
Use solar energy 24/7, manage ‘peak demand’, and avoid blackouts to shield your business from high electricity price volatility and increasing grid reliability issues.
Winki is known as an industry leader in real-world Solar and Battery Energy Storage System (BESS) feasibility assessments. Winki has extensive expertise in detailed energy and financial modelling, through to BESS design, supply, installation and on-going Operations and Maintenance.
We assist our ‘blue-chip’ clients with solar and BESS roll-outs on individual sites or property portfolios across manufacturing, agribusiness, healthcare, retail, government and other sectors.
Large BESS (Battery Energy Storage Systems) on C&I sites can provide a wide array of functions, each with their own unique advantages and use cases depending on your site and goals.
Winki is a specialist in identifying the optimal size and mix of solar and battery systems and the most lucrative way to operate these assets for your organisation. As part of the installation, we set up advanced monitoring and control systems so your assets automatically perform at their best all year – without human input.
We prepare conservative energy asset financial analyses that reflect reality and contain the detail required to gain approvals from project stakeholders. Winki is an advanced user of Orkestra’s energy modelling platform to assist with our modelling and assessments.
Orkestra assists our experts to identify the highest performing scenario and BESS capacity for each site using real data. This graph shows as an example BESS solutions ranked by Net Present Value (NPV):
Talk to our C&I solar and battery asset specialists about how a battery would be best utilised on an individual site or across a portfolio of sites. Our highly experienced team will assess your site, energy usage, business needs, and opportunities to capitalise on lucrative revenue streams including:
In many cases, these revenue streams can be made available through, or augmented by, Virtual Power Plants (VPPs), Microgrids and Embedded Networks. If you’d like to learn more about these technologies and how we can help your organisation access them please reach out.
In most cases, our BESS solutions are installed and configured to hunt for the optimal financial outcomes in real-time. In other words, these systems monitor and predict:
The system is configured to constantly and automatically make decisions that maximise revenues through any of the available operating functions, simultaneously.
Winki Energy successfully delivered a 759kWp rooftop solar system across the entire building in just 12 weeks, here’s how it all came together. Watch the video to see the full process in action.
Full project walkthrough · 2 min · Commercial Solar
Our battery solutions reduce reliance on the grid, giving your business backup power during outages and protection from peak demand charges. This ensures your operations stay productive, even when the grid is unstable.
We design systems that work hand-in-hand with your solar installation, ensuring optimal energy storage and usage tailored to your operations. This guarantees your business has consistent power supply when it matters most.
Whether you need a small system today or a larger one tomorrow, our modular battery solutions grow with your energy demands. This flexibility helps you avoid unnecessary upfront costs while future-proofing your investment as your operations expand.
We use proven, bankable technologies backed by warranties and our ongoing maintenance, ensuring reliability and peace of mind. Our dedicated support team is always available to provide guidance, troubleshoot issues and keep your system running at peak efficiency.
We are committed to providing a seamless solar experience, so we offer complimentary site assessments to understand your energy needs and create a tailored solar and battery solution for you.
Everything is done in-house to ensure a hassle-free solar panel and battery installation process, from sales to design to installation by our CEC-accredited solar and battery installers.
From the design phase to installation, our priority is ensuring that your solar system and battery provides the greatest possible return on investment and delivers long-term savings.
Our commitment extends beyond solar system and battery installation. We can monitor your system's performance, providing peace of mind by ensuring its ongoing reliability for years to come.
We use best-in-class products, back our work with a 10-year workmanship warranty and guarantee our team is accredited.
All solar panel & battery systems are designed by SAA-accredited designers. We get the best solar installers.
All performance estimates are completed using accurate data and conservative when it comes to cost.
All systems are installed
by licensed electricians
and SAA accredited solar installers
10 year workmanship and inverter warranty and 25 year product & performance warranties on solar panels.
Answers To The Most Common Commercial Solar Questions
Frequency Control Ancillary Services (FCAS) is one of the most lucrative revenue streams for commercial battery storage. When the power grid experiences a sudden fluctuation in frequency, the BESS can inject or absorb energy within milliseconds to maintain stability.
By registering as a Market Ancillary Service Provider (MASP), businesses receive payments for simply being “on standby” to provide these rapid responses, effectively turning a backup power asset into a consistent revenue generator.
Demand Response allows businesses to reduce or shift their electricity usage during peak periods when prices are highest. A BESS automates this process by discharging stored energy during “peak events,” preventing the need to draw expensive power from the grid.
Financial implications include:
While the upfront capital expenditure for BESS can be significant, the payback period has shortened considerably due to rising energy costs and new incentive programs. Most commercial installations now see a full return on investment within 5 to 8 years.
Factors that accelerate this timeline include the integration of behind-the-meter solar, participation in Virtual Power Plants (VPPs), and the eligibility for instant asset write-offs or government-specific renewable energy grants.
While often used interchangeably, they target different parts of your bill:
Yes. Modern BESS units equipped with grid-forming inverters allow for “islanding,” meaning your facility can operate independently of the local utility grid during a blackout. This ensures business continuity, protects sensitive equipment from power surges, and eliminates the heavy financial losses associated with unplanned downtime.
Battery Energy Storage Systems (BESS) are no longer just an energy upgrade. For many Australian businesses, they are a strategic tool for managing cost, risk, and operational resilience.
Energy is often one of the largest overheads for medium to large organisations, and it is also one of the most unpredictable. Rising electricity prices, peak demand charges, tariff complexity, outages, and growing ESG expectations mean businesses can no longer afford to treat energy as a passive expense.
A well-designed BESS helps businesses take a more proactive approach. It can reduce reliance on grid-supplied energy, store excess solar for later use, lower peak demand charges, and support continuity during outages. For some organisations, it can also unlock additional value through energy trading, demand response, and other grid services.
For boards, executives, and CFOs, this makes BESS more than a technical solution. It becomes a way to strengthen energy security, improve cash flow certainty, and reduce exposure to volatile operating costs.
Why businesses are investing in BESS
Key considerations before investing in BESS
Before installing a battery system, businesses should assess:
Leasing vs buying BESS
For many organisations, leasing can be an attractive option. It may deliver immediate cash flow benefits without large upfront capital expenditure, while also including maintenance and performance management as part of the agreement. Buying may suit businesses looking for long-term asset ownership, but leasing can reduce complexity and make adoption easier.
A smarter way to manage energy risk
The core question for many businesses is no longer whether energy costs will remain a challenge. It is whether they are taking the right steps to control them.
With the right strategy, BESS can help turn energy from a business vulnerability into a competitive advantage.