PRESS RELEASE – Wittenberg, 07.08.2023:


The international project developer Green Energy 3000 and Tesvolt, one of the innovation and market leaders for commercial and industrial energy storage solutions, are continuing their collaboration with the launch of their fourth joint project. This involves deployment of Tesvolt battery containers in a new solar farm near Braunschweig, Northern Germany. The solar farm will supply green electricity to around 5,000 households, while simultaneously reducing the load on the utility grid.


Pressebilder finden Sie hier:

Four solar farms with a total of 18.3 MWh

The fourth joint battery storage system project will see Tesvolt deliver two TPS-E storage containers with a total of 10 MWh of energy and 4 MW of output to Gardessen, near Braunschweig in Lower Saxony. The storage containers are to be connected to a solar farm with an output of 12 MWp. Pairing photovoltaics with a battery storage system helps create a more reliable and clima-friendly energy supply in the region. The project is being funded by the government as part of its innovation tendering scheme with which the German federal government regularly puts funded quantities of renewable energy production out for tender.

Tesvolt and Green Energy 3000 have already launched three similar projects within Germany over the past two years: battery storage systems totalling 8.3 MWh have been connected to solar farms in Saxony’s Großschirma, Brandenburg’s Maulbeerwalde and Bavaria’s Schnaittenbach. When combined with the current project, this means that the two partners have added a total of around 18.3 MWh in storage capacity to the utility grid.

The ban on bidirectional charging must be lifted

The battery storage system is not just intended to reduce the load on the utility grid; the energy it stores is also sold via arbitrage transactions, for instance, or via participation in the operating reserve markets.

Legislators need to take action to ensure the innovation tender remains an appealing tool for project owners. The current stipulation that battery storage systems are not allowed to store electricity from the grid, i.e. that they cannot run bidirectionally, must be changed as a matter of urgency. This is the only way for the available storage capacity to be used to full effect,” says Philipp Schreiber, project manager for large-scale storage systems at Tesvolt. “This would also add a clear additional incentive for investing in energy storage, as operators would be able to boost their profits by selling their storage capacity. In turn, this would quieten demand from project developers for get higher feed-in tariffs.

A stable supply of green energy

We’re delighted to be continuing our brilliant partnership with Green Energy 3000,” says Simon Schandert, Tesvolt’s CTO. “With our expertise in battery storage systems and Green Energy 3000’s project development know-how, we’re jointly contributing to a sustainable energy supply and showing the way toward the energy transition.

We managed to technically optimise the projects through our constructive collaboration with Tesvolt, which continued after the battery storage system had been commissioned. The partnership between Green Energy 3000 and Tesvolt has now proved its worth and delivered a wealth of valuable insights for both parties,” says Andreas Renker, CEO at Green Energy 3000.

Durable and specialised in ancillary services

Tesvolt’s TPS-E battery container boasts high energy density in three different container sizes, 100% depth of discharge and a planned lifespan of 30 years. Thanks to Tesvolt’s intelligent battery management system, the TPS-E stabilises the integration of renewable energy sources into the utility grid to enable a reliable supply of clean energy. The system can be adapted to any purpose – self-consumption optimisation, peak shaving, arbitrage trading on spot markets or the provision of operating reserves.

You can view a video on the project in Großschirma here:

About Tesvolt

Tesvolt AG is one of the innovation and market leaders for commercial and industrial energy storage system solutions in Europe. Tesvolt products enable companies to end their energy dependency and play a part in the energy transition. The agile company produces intelligent lithium storage systems with power ratings from 10 kilowatt hours through to multiple megawatt hours – with top quality and TÜV-certified safety. Tesvolt manufactures its commercial storage system solutions in series production at its own carbon-neutral gigafactory in Wittenberg, Germany, and delivers them worldwide. The company has already received several awards, including the German Entrepreneur Award in the “Rising Stars” category, “Innovator of the Year” from TOP 100 and the smarter E Award in the “Outstanding Projects” category.

About Green Energy 3000

Green Energy 3000 Holding GmbH is an umbrella organisation for German and international companies working together on the energy transition. The group’s range of services encompasses the project development, planning, financing, procurement, establishment and operation of wind and solar farms, hybrid installations with battery storage systems and agri-PV projects. More than 65 projects with a cumulative output of more than 350 MW have been implemented since 2004.

Through its work, Green Energy 3000 plays a key role in the expansion of renewable energies and a secure, independent energy supply.

Press contact

Ingo Valldorf
Corporate & Financial Communications
Tel: +49 3491 – 8797-234
Mobile: +49 151 724 740 09