PM: AllianzGI acquires 51% stake in GESI
With 2.6 GW of connected load under development, GESI currently represents one of the largest portfolios of large-scale battery storage in Germany | This is Allianz’s second direct equity investment in battery storage projects in Germany in a very short period of time April 23, 2026 | Allianz Global Investors (AllianzGI ) announced today that […]
Project update Bergrheinfeld (Bavaria)
Following the ground investigation in March, preparations are in full swing. The Franconian municipality of Bergrheinfeld near Schweinfurt is of central importance for the German energy infrastructure. This is because the SuedLink power line, which will transport wind energy from the north to southern Germany in future, runs to this location. GESI Giga Batteries has […]
Comment: How politics fuels uncertainty
If you want to trigger more investment in Germany, you have to create reliable framework conditions. What is happening in energy policy Unfortunately, the opposite is currently the case. A commentary by GESI CEO Walter Raizner. Pullach, February 25. Four current examples show that energy policy is currently heading or threatening to head in the […]
Project update Emmerthal (Grohnde)
Battery storage planned on an area of up to 16 hectares | GESI office opened on site Preparations are in full swing: one of the largest electricity storage facilities in Germany is to be built in the immediate vicinity of the former Grohnde nuclear power plant in Lower Saxony by 2028(see visualization above). “The company […]
Thinking outside the box for the energy transition
International benchmarking: Other countries are much further ahead when it comes to electricity storage and BESS strategies. We took a look at who we can learn from. Capacity market: Create market-based incentives – as in the UK. The Federal Ministry of Economics has announced that it will establish a capacity market in 2027. It is […]
Heinrich von Pierer advises GESI Giga Batteries
Large-scale battery project developer brings experienced industry manager on board | “Driving force for the management team” Pullach, November 13. A new task for former Siemens CEO Heinrich von Pierer: the Erlangen native is now advising the battery storage project developer GESI Giga Batteries. “I am delighted that we have been able to gain one […]
Position paper: Creating planning security for battery storage systems
Following the completion of the energy transition monitoring, the German government is planning reforms. We have summarized what is important here in a position paper. The common goal of the storage industry and politicians must now be to establish large-scale batteries as part of the solution for an affordable and sustainable energy transition. This requires […]
California: Successful energy transition thanks to battery storage
The world’s fourth-largest economy now has a large-scale battery storage capacity of almost 16 gigawatts. Pullach, 11.07. 2025 | Seven years ago, California was still something of a storage desert: the cumulative large-scale battery capacity amounted to just 0.5 gigawatts in 2018. But since then, the US state, which in itself would be the fourth […]
From the world’s largest storage power plant to GESI
Our co-founder Martin Schoeller is the great-grandson of the electrical pioneer Oskar von Miller, who founded the Deutsches Museum – and was already promoting the idea of affordable electricity for everyone back then. When the Deutsches Museum in Munich opened its doors a hundred years ago in May 1925, it was mainly thanks to one […]
Wind power tuning with large central batteries
For a successful energy transition, we need to focus not only on quantitative but also qualitative growth targets – and expand storage capacities in order to fully exploit the potential of wind turbines. It is probably the greatest risk to the acceptance of the energy transition: Time and again, wind turbines stand still despite stiff […]