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 conclusion 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. To achieve […]
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 […]
How large-scale batteries support the power grid
Storage facts series (IV) | Critics question whether battery storage systems are useful for the grid and system. Why they are wrong. A constant frequency is of paramount importance for the stability of the electricity grid. However, with the expansion of wind and solar energy, there are strong fluctuations: On sunny and windy days, there […]
GESI project presented in Grohnde
One of Germany’s largest energy storage facilities is being built near the decommissioned Grohnde nuclear power plant. On March 1, we presented our plans to interested citizens. Pullach, March 2025: The municipality of Emmerthal near Hamelin in Lower Saxony is becoming a pioneer in the integration of renewable energies into the electricity grid: We will […]