TESVOLT presents new “economic miracle” battery storage system with high-temperature cells

Wittenberg, 25 March 2025 – TESVOLT, a leading European full-service provider of innovative energy storage system solutions for commerce and industry, 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.

Very fast return on investment

“Commerce and industry want a very fast return on investment. With our new battery system, the investment usually pays off after just a few years  if it takes part in energy trading,” explains Simon Schandert, Co-Founder and CTO of TESVOLT AG. “There’s a good reason we call it an ‘economic miracle’ – it has never been so economical to operate a commercial storage system. In technical terms, you can only achieve this with a highly robust battery storage system, one that can be charged and discharged several times a day over many years.”

High-temperature cells in battery storage systems for the first time

To make the new, scalable battery system as resilient and durable as possible, TESVOLT is using high-temperature cells for the first time. “These cells require less cooling than commercially available LFP cells. At the same time, they have an even longer lifespan,” Schandert continues. “Another special feature is that it doesn’t require liquid cooling. This saves the customer half-yearly maintenance, and any service work can also be carried out by installers who are not certified for handling environmentally hazardous substances – as these are contained in most coolants.”

Depending on the desired total storage capacity, up to 16 of the new 92 kW storage systems are interconnected on site, enabling them to achieve up to 1.5 MW.

Enabling energy trading for commerce and industry

With the new TESVOLT Forton and together with its new spin-off TESVOLT Energy, TESVOLT AG is offering commerce and industry the opportunity to participate in energy trading and reap profits at last. Until now, it has been very difficult for operators of commercial storage systems to find a trader to trade their smaller storage capacities on the electricity exchange, or they have only been able to take part on less lucrative terms. TESVOLT Energy is changing this by adding battery storage systems to a pool, as the numerous smaller storage systems are only of interest for energy trading when bundled together. The start-up works with Germany’s most renowned traders and puts them into competition with each other – for the first time ever. For customers, this means particularly high revenues and less risk.

TESVOLT Energy uses intelligent software developed in-house to control the battery storage systems in the pool so that they generate the greatest possible revenue with the least intensive operations. 

Security plays an important part

“Ultimately, we no longer offer just a battery storage system, but a compelling investment together with TESVOLT Energy. Commerce and industry no longer even need to invest in PV installations; they just need a grid connection point with output of at least 50 kW and our new battery system,” reports Daniel Hannemann, Co-Founder and CEO of TESVOLT AG. Here, investment security is just as important as cybersecurity. “If you choose the trading option, we will give you a performance guarantee for 15 years at two cycles a day – that’s almost 11,000 guaranteed full cycles. The market standard is only 3,000 to 4,000 guaranteed full cycles. We can offer this because the intelligent software from TESVOLT Energy ensures that the storage system is operated for utmost profit, but with the least intensity. This makes the investment particularly safe,” continues Hannemann. . Integrated smoke, heat and gas sensors, including an alarm and aerosol extinguishing system, also ensure maximum safety.

Exhibition stand at ees Europe 

At ees Europe, Europe's largest trade fair for batteries and energy storage systems, TESVOLT and TESVOLT Energy will be presenting the new TESVOLT Forton battery storage system and the highly profitable energy trading model at stand B2.110.

Further information on the TESVOLT Forton can be found on the product page.