en.Wedoany.com Reported - Ionly, an energy storage company based in Valencia, Spain, has launched its first semi-automated assembly line in Rafelbunyol, beginning mass production of lithium iron phosphate (LiFePO₄) batteries. The company focuses on the research and development of energy storage systems for residential photovoltaic installations.
The commissioning of this assembly line marks the company's transition from manual prototype assembly to an industrialized manufacturing model developed independently in Spain. The company states that the new process will increase production capacity, optimize assembly, and enhance quality control and traceability for each unit. The new facility is the result of over 18 months of industrial development, during which Ionly has aligned its products with EU Battery Regulation (EU) 2023/1542, incorporating standards for sustainability, traceability, repairability, and circular economy.
Ionly centralizes all production activities at its Rafelbunyol plant, where battery cell assembly is completed. Production is not outsourced, with chassis, wiring harnesses, and plastic components supplied by vendors in the Valencian Community.
According to information disclosed to pv magazine, the annual production capacity before the launch of this assembly line was 20 MWh, which can be expanded to 100 MWh through further automation.
In 2025, Ionly launched the Ionly XYZ, a 5 kWh rechargeable home battery based on LFP technology. Due to in-house assembly, the use of European components, and a localized supply chain, 90% of the product's added value is generated within the EU. The company is also developing a 50 kWh energy storage system for commercial and industrial applications, scalable to 800 kWh, which can use either new LFP cells or second-life cells from the automotive industry. Plans include selling a 409.6 V, 43.2 kWh battery and developing customized solutions for small and medium-sized enterprises and photovoltaic power plants. The roadmap includes launching a utility-scale energy storage system integrated into a 20-foot shipping container by 2028.
In March of this year, Ionly completed a €1.2 million financing round, with participants including Juan Roig's investment company Angels (part of Marina de Empresas), Pascal Management, Lionbest, Zemsania, and public institutions such as ENISA, AVI, IVF, and CDTI. The funds will be used for production automation, improving operational efficiency, and significantly increasing battery output.
Currently, Ionly sells its solutions in Spain and Portugal and plans to expand its business to other markets in the Mediterranean and the Caribbean.
