Rotomoulded components for energy storage: durable, flexible, future-ready
The dynamic development of the renewable energy sector calls not only for innovative generation systems but also for modern and reliable storage technologies. One of the key areas is the proper containment of electrolyte in flow batteries – and this is exactly where rotomoulded plastic components demonstrate their advantage.
Energy storage and technological challenges
The energy transition places entirely new demands on designers and investors. Storage systems must be not only efficient, but also safe, durable and resistant to chemical and mechanical stress. A crucial element in this context is the electrolyte tank, used for example in Redox flow batteries. Its quality and parameters directly impact the performance of the entire system. Rotational moulding technology proves to be an answer that combines design flexibility with the required reliability. It is a solution that meets the needs of modern renewable energy infrastructure.
Rotomoulding as a response to the energy sector’s needs
Rotational moulding allows the production of polyethylene tanks in almost any shape, wall thickness and connection layout. What’s more, the process eliminates the need for joints or welding, resulting in seamless final components. This significantly enhances their leak-tightness and resistance to aggressive chemical environments. The tanks can be made from materials resistant to acids such as sulfuric or phosphoric, and achieve a service life exceeding 20 years. Their low weight, ease of installation and full recyclability make them not only cost-effective, but also environmentally responsible solutions.
10,000-litre electrolyte tank – durability and scalability
One of the key solutions offered by Rotovia is an electrolyte tank with a capacity of up to 10,000 litres, developed for industrial installations and long-duration energy storage systems where reliability is essential. Made from polyethylene using rotomoulding technology, the tank includes double walls to improve both safety and structural integrity. A seamless construction eliminates the risk of leaks, while outstanding chemical resistance ensures consistent performance even when exposed to aggressive electrolytes. Thanks to its low weight, the tank is easy to transport and install. In addition, its long lifespan and full recyclability contribute to sustainability, making it an environmentally responsible choice for modern energy projects.
Rotovia – your partner for sustainable energy systems
At Rotovia, we’ve been designing and manufacturing components for industries that demand the highest levels of quality, safety and durability for many years. Our expertise in plastics processing, combined with a deep understanding of market needs, allows us to offer solutions tailored precisely to the demands of modern energy systems. Working with our team means access to full project support – from concept development to the production of the final component. We provide not only advanced manufacturing technology, but also long-term, collaborative partnerships based on reliability, innovation and environmental responsibility. Our goal is to deliver durable, precisely engineered storage solutions that support the future of clean energy.
Meet us at EES Europe 2025 in Munich
We will be taking part in EES Europe 2025, one of the most important trade fairs dedicated to energy storage technologies in Europe. From 7–9 May, we invite you to visit us at Stand B2.290, where our experts will be available to discuss how rotomoulding can support the development of reliable, lightweight and fully customisable plastic components for energy storage systems. It’s a great opportunity to explore how this technology meets the needs of modern energy infrastructure. To learn more about our capabilities in this segment, we also encourage you to watch our video highlighting Rotovia’s approach to designing and manufacturing rotomoulded components for energy storage applications.
Let’s talk about how we can help address the specific challenges of your project, with durability, safety and the future of clean energy in mind.
