Why self-bunded fuel tanks are the smarter choice for diesel storage

In many industries, reliable fuel storage is not a luxury. It’s a necessity. Whether powering construction sites, mining operations, backup generators, or transport fleets, diesel needs to be stored safely, efficiently, and in compliance with environmental standards. For businesses across Western Australia, self-bunded fuel tanks offer a practical solution.
Unlike traditional single-wall tanks, self-bunded tanks are designed with built-in spill containment. This makes them both safer and more cost-effective over the long term. And for organisations operating in high-demand environments, that difference matters.
What is a self-bunded fuel tank?
A self-bunded fuel tank is a double-walled fuel storage system. It consists of an inner tank that holds the fuel, enclosed within an outer tank that forms a second layer of protection. The space between the two walls, known as the bund, is designed to capture any leaks or spills from the inner tank.
This built-in containment eliminates the need for external bunding infrastructure, which can reduce installation complexity and improve safety outcomes on site.
Self-bunded tanks are commonly used for:
- Bulk diesel storage
- On-site refuelling of machinery and vehicles
- Generator supply for standby and continuous power
- Mobile fuel operations in remote or fast-moving sites
At WA Refuelling, we supply and hire self-bunded fuel tanks in a wide range of sizes to suit different applications. Our tank hire and sales service supports clients with both temporary and permanent storage solutions.
The benefits of self-bunded tanks
The appeal of self-bunded tanks lies in their versatility and low-maintenance design. Some of the key advantages include:
1. Environmental compliance
By design, self-bunded tanks help meet EPA regulations and environmental codes for fuel storage. The integrated bund reduces the risk of spills and ground contamination, especially in areas without additional containment systems.
2. Safety and risk reduction
A fuel leak inside a bunded tank is captured before it can escape to the surrounding environment. This containment protects both workers and infrastructure from potential hazards.
3. Cost savings over time
Although the upfront cost of a self-bunded tank is typically higher than a single-skin option, it can reduce costs in the long run. There is less need for external bund construction, site modifications, or costly clean-ups in the event of a leak.
4. Portability and ease of installation
Many self-bunded tanks are designed to be moved by forklift or crane, making them suitable for temporary or shifting worksites. They require minimal setup and can be deployed quickly.
5. Integrated dispensing systems
Modern bunded tanks often include built-in pumps, meters, and filtration, allowing for safe on-site refuelling without the need for extra infrastructure.
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Why they suit WA conditions
Fuel storage in Western Australia presents unique challenges. Long distances between sites, remote locations, and high temperatures can place additional strain on equipment and infrastructure. Self-bunded fuel tanks help mitigate these risks by offering secure, mobile, and climate-resilient storage.
WA Refuelling works with businesses across Perth and surrounding areas to supply tanks that match the demands of the local environment. From urban developments to isolated mining operations, we ensure our tanks are compliant, transportable, and ready for the real conditions they will face.
Choosing the right size and configuration
One of the strengths of self-bunded fuel tanks is the variety of options available. Sizes typically range from small portable units around 500 litres to large-volume tanks exceeding 100,000 litres.
When selecting a tank, several factors should be considered:
- Daily or weekly fuel usage
- Frequency of refuelling
- Available space on site
- Access for delivery vehicles
- Generator or machinery compatibility
- Hire versus purchase requirements
WA Refuelling offers expert advice to help clients choose the right solution. Whether you need a temporary setup for a civil project or a long-term tank for a permanent facility, our team can help match capacity and features to your operational needs.
Hire or buy? It depends on your project
Self-bunded fuel tanks are available for both hire and sale. Hiring is often ideal for short-term or seasonal projects where flexibility is key. Purchasing may make more sense for permanent operations or long-term savings.
WA Refuelling supports both options through our tanks hire and sales service. We maintain a range of clean, fully compliant tanks ready for immediate deployment, with delivery and pickup available across Perth.
We also supply accessories such as pumps, flow meters, hose reels, and filtration to complete your setup. All tanks are inspected, certified, and maintained to meet Australian Standards.
Servicing and support
Fuel storage does not end at installation. Self-bunded tanks still require periodic inspection, cleaning, and maintenance to ensure performance and compliance. WA Refuelling supports clients with tank servicing schedules, site checks, and ongoing support.
Our team can also advise on best practices for:
- Fuel turnover and stock management
- Preventing microbial contamination
- Protecting tanks from UV and weather exposure
- Maintaining dispensing equipment
A proactive maintenance approach helps extend the life of your tank and avoid fuel quality issues that can affect engines and equipment.
Applications across industries
Self-bunded tanks are used in a wide range of sectors, including:
- Civil and infrastructure construction
- Mining and resources
- Agriculture and bulk transport
- Healthcare and emergency power
- Manufacturing and logistics
Wherever fuel is stored on-site and equipment uptime is critical, bunded tanks offer a reliable and safe solution.
WA Refuelling works with all of these industries to provide tanks that are suited to their workflows and compliance needs. Our team understands the operational pressures of high-demand sites and the importance of getting storage right from day one.
Secure your diesel storage with WA Refuelling
Fuel storage should never be an afterthought. The right tank helps ensure safe operation, regulatory compliance, and ongoing efficiency across your site. Self-bunded fuel tanks offer a secure, flexible, and scalable way to manage diesel wherever it is needed.
Whether you need tanks for short-term hire or a long-term solution you can rely on, WA Refuelling has you covered. Our self-bunded fuel tanks are built for safety, mobility, and compliance in any environment. Visit our tank hire and sales page or call (08) 9359 1988 to speak with our team.