Tesvolt presents new battery storage system with high-temperature cells

31.03.2025

Source: E & M powernews

A new type of storage system is set to significantly simplify marketing on the electricity market for trade and industry.

Tesvolt AG, a provider of energy storage solutions based in Wittenberg, has unveiled a new battery storage solution for use in commercial and industrial environments: the "Tesvolt Forton" model. For the first time, the company is using high-temperature cells with lithium iron phosphate (LFP) technology that do not require liquid cooling, according to a press release.

The new technology should enable a higher load capacity and service life. According to Tesvolt, the cells used require less cooling than standard LFP cells on the market. "Another special feature is that we do not require liquid cooling. This saves the customer half-yearly maintenance," says the company. The service work can also be carried out by installers who are not certified to handle environmentally hazardous substances, as these are contained in most cooling liquids.

A performance guarantee of 15 years at two full cycles per day - the equivalent of around 11,000 cycles - is intended to increase investment security. The system has a modular design: Depending on the desired total capacity, up to 16 units with 92 kW each can be connected. This results in a maximum output of around 1.5 MW and a generation capacity of around 1.5 million kWh. According to Tesvolt, a grid connection point with an output of at least 50 kW is a prerequisite for cost-effective operation in energy trading.

In addition to the new product, the company has founded the subsidiary Tesvolt Energy (we reported). This bundles decentralized commercial storage systems into a storage pool, which is then placed on the electricity market. The aim is to make smaller storage capacities available for energy trading by bundling them. Tesvolt Energy works together with several electricity traders who are in competition with each other. For the operators, this should lead to higher revenues and broader risk diversification.

Specially developed software is used to control the battery storage systems integrated into the pool. According to Tesvolt, this ensures an operating mode that is both economically optimized and gentle on cycles and ageing. Safety functions such as smoke, heat and gas sensors as well as an aerosol extinguishing system are integrated into the system.

"Trade and industry want a very fast return on investment. With our new battery system, the investment usually pays for itself after just a few years if it participates in energy trading," says Simon Schandert, co-founder and CTO of Tesvolt AG.

Author: Stefan Sagmeister