Wittenberg, 25 November 2025 – The new TESVOLT FORTON commercial storage system has proven itself in the field. This has been reported by battery storage provider TESVOLT and its subsidiary TESVOLT ENERGY. Over several months, the outdoor storage system was tested in ten different customer projects. The battery systems, which are used exclusively for energy trading, are already generating monthly revenues in the four- to five-figure range. TESVOLT FORTON has also demonstrated its effectiveness in classic applications such as optimising self-consumption and peak shaving.

Distribution grid operators are receiving a large number of requests to connect large-scale energy storage systems to the medium- and high-voltage grid. This has been published by Bayernwerk Netz, Bavaria’s largest distribution system operator, and Mitnetz Strom. Due to the necessary grid expansion measures, the waiting period for applicants is usually at least five years. Start-up TESVOLT ENERGY has found a solution that can quickly connect battery storage solutions to the utility grid. It gives commerce and industry – which usually already have a sufficiently large connection to the low-voltage grid – the previously lacking incentive to connect smaller energy storage systems of 100 kWh or more to the utility grid.

TESVOLT presents its new outdoor battery storage system solution TESVOLT Forton at the ees Europe trade fair in Munich from 7 to 9 May. It is the company’s first system to use high-temperature cells based on LFP technology, doesn’t require liquid cooling and paves the way for profitable energy trading for commerce and industry. A performance guarantee of 15 years at two full cycles per day ensures a safe investment. Commercial enterprises need nothing more than a grid connection point with an output of at least 50 kW to use the battery system for highly lucrative energy trading.

TESVOLT, an innovation and market leader for commercial and industrial energy storage system solutions in Germany and Europe, has announced a spin-off: TESVOLT Energy. The start-up’s business model makes energy trading with battery storage systems of 100 kWh and above not only possible but profitable as well. Until now, battery storage systems of this magnitude were excluded from highly complex energy trading or only accepted on less lucrative terms. Here TESVOLT Energy is working with Germany’s most renowned traders: Enspired, Entrix and The Mobility House. The new company debuts at E-world in Essen from 11 to 13 February.