The Renewables Blog

New HEIWIT sodium ion storage system installed in Sambughè (TV)

Dec 12, 2025 | Gallery installations

Installation of storage systems in the territory continues HEIWIT sodium ion, an innovative technology that provides a real alternative to traditional lithium batteries for storing energy from renewable sources.

The latest intervention was carried out in Sambughè, in the province of Treviso, where a new HEIWIT storage facility went into operation without lithium, designed to maximise self-consumption and improve the overall efficiency of the existing photovoltaic system.

An installation signed 100% ErgonSì

The intervention was supervised by 100% ErgonSì by Emanuele Frison, a well-established player in the renewable energy sector and a reference point for photovoltaic and storage solutions for both individuals and companies.

100% ErgonSì has been working for years with a quality-oriented approach, making photovoltaic accessible but technically advanced, without compromising on the reliability, safety and durability of the systems. The company can also rely on significant industrial experience, gained through corporate involvement in projects of national significance, such as the MOSE, testifying to transversal skills and a high technical profile.

Why a HEIWIT sodium-ion battery

The installed storage system uses sodium ion chemistry, an emerging technology that HEIWIT has chosen to develop and bring to market for stationary applications, thanks to features particularly suited to residential and professional use:

  • greater chemical stability

  • high operational security

  • excellent performance even at low temperatures

  • absence of lithium and critical materials

  • specific design for daily charge/discharge cycles

The objective of the plant is to increase energy autonomy, reduce feed-in to the grid and optimise the use of the energy produced by photovoltaics, with a solution designed to last.

Technology, expertise and attention to detail

The Sambughè installation is a concrete example of how advanced technology and installation expertise can work together to offer reliable and truly efficient storage solutions.

An intervention realised with care, professionalism and vision, supporting an increasingly conscious and efficient use of renewable energy, in line with HEIWIT's mission: to bring innovative, safe and future-proof storage systems to the market.