Tesvolt tests commercial storage systems in energy trading

26.11.2025

Source: E & M powernews

Storage manufacturer Tesvolt promotes the use of the Forton commercial storage system in its subsidiary's virtual power plant following a field test.

According to a statement from storage manufacturer Tesvolt and its subsidiary Tesvolt Energy, the commercial storage system known as "Forton" has completed multi-motor field tests in ten customer projects. The projects involved energy trading as well as applications such as self-consumption optimization and peak load capping. According to the company, the systems used exclusively for energy trading generated monthly revenues in the four to five-digit range.

According to the company, field tests are particularly challenging when storage systems are used for energy trading, as this places increased demands on hardware, software and technical support. According to Product Manager Leonard Friese, there were technical hurdles in the first few weeks, but later only isolated minor problems before operation was stable and trouble-free.

Tesvolt Energy also reports that the test phase was used to optimize internal processes and interfaces to the virtual power plant. The integration of new storage projects initially took several days, but is now usually possible within a few hours, as Product Manager Juri von Wilcken explains. It has also been shown that early coordination with grid operators is important in order to avoid delays in the start of marketing.

The storage manufacturer's subsidiary points out that smaller commercial storage facilities have previously found it difficult to gain access to traders in exchange-based electricity trading. The company is therefore bundling the capacities and, according to its own information, having them marketed by three energy traders. Operators with a grid connection of 50 kW or more and a storage system with a capacity of 50 kW or more can participate.

"It has never been possible to operate a commercial storage system as economically as with energy trading. Technically, this is only possible with a battery storage system that is very resilient, i.e. can be charged and discharged several times a day over many years," explains Simon Schandert, CTO and co-founder of Tesvolt.

According to the manufacturer, the "Forton" commercial storage system has a maximum charging and discharging capacity of 92 kW and weighs 1,400 kg without the inverter. Tesvolt gives the number of full cycles as 15,000.

Tesvolt Energy is a Berlin-based software start-up and a wholly owned subsidiary of Tesvolt AG. The software enables commercial storage systems from 50 kW to participate in "front-of-the-meter trading". Together, the two companies offer storage technology, installation, maintenance and marketing of battery storage systems.

Author: Fritz Wilhelm