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Highlights
NGK completes NAS battery project for Hungary’s MVM Balance at Litér power station
Project enhances grid storage and flexibility to support renewable energy
Hungary targets large-scale energy storage and decarbonisation by 2030
The energy storage sector has received a boost with NGK Insulators completing a large-scale NAS battery installation for MVM Balance, a subsidiary of Hungarian energy utility MVM Group. The project supports the country’s decarbonisation efforts and strengthens its long-term grid reliability goals. NGK, a global developer of sodium-sulphur battery technology, is not listed on the All Ordinaries, but plays a pivotal role in shaping international grid-scale energy solutions.
The battery commissioning took place at MVM Balance’s Litér power station, forming part of Hungary’s broader objective to advance energy autonomy and support renewable integration.
Handover Ceremony Highlights Energy Transition Goals
The formal handover of the NAS battery system marked the end of its installation and testing phase. At the event, Hungary’s Ministry for Energy reaffirmed its goal to scale up domestic energy storage infrastructure. The ministry is aiming for gigawatt-scale capacity by the end of the decade.
With the system now fully operational, Hungary gains a new tool for regulating electricity supply during periods of fluctuation, helping to manage demand peaks and renewable output variability.
NAS Batteries Offer Stable and Long-Life Grid Storage Option
NGK’s NAS batteries are recognised for their ability to deliver high-capacity storage over extended periods. Composed of sodium and sulphur materials, these batteries serve various roles, including balancing grid demand and supply, supporting emergency energy needs, and stabilising renewable power sources.
Due to Hungary’s relatively flat terrain, pumped hydro storage options are limited. This makes battery technologies like NAS a viable and increasingly necessary alternative. The installed system contributes to a grid demonstration project, designed to validate how such batteries can store surplus energy and discharge it during shortfalls.
Project Supports Market Flexibility and Ancillary Services
Beyond stabilisation, the demonstration will assess how grid storage batteries may be used in energy markets, including providing adjustment capacity to the ancillary services sector. These services help manage supply-demand mismatches in real time, increasing the resilience and reliability of national grids.
MVM Group has adopted a forward-looking approach to battery storage, viewing it as essential to accommodate rising renewable energy penetration. The NAS batteries installed at Litér reflect the company’s intent to define new performance standards for future grid-connected storage technologies.
Hungary Moves Forward on Carbon-Neutral Power Grid Vision
Hungary’s strategy to shift the majority of its power generation to low-carbon sources by 2030 remains a guiding principle. With solar now contributing a notable share to the energy mix, the integration of flexible storage solutions like NAS batteries plays a central role in absorbing variability and ensuring consistent energy supply.
