
About Us
Your contact person
Meet the Team
Our Management
Professionals with more than 30 years of experience each
Dr. Detlev Ruland and Peter Jumpertz have created GFGBA, acting as managing directors. They are leveraging their network of trusted personal relationships with decision-makers from virtually all stakeholder groups in the German energy industry. It includes transmission grid operators, distribution grid operators, the regulatory bodies, members of relevant state governments, and C-level executives of key suppliers and vendors.
Both founders are uniquely positioned to deal effectively with the go-to-market challenges of the platform.
GFGBA’s management is working with a team of experts in the areas of electricity supply, sales and trading, BESS technology, engineering, and energy market regulation.

Peter Jumpertz, MBA
Peter Jumpertz holds both a master’s degree in business administration and a master's degree in management sciences from Columbia University in New York.
He has worked for over 30 years as a manager responsible for, as co-founder, and co-owner of successful companies in the fields of advisory services, real estate & asset development, and top-management consulting.
He draws on two decades of experience in the energy industry in Germany and Europe. Many of the projects he was significantly involved in, dealt with the development, implementation, and commercialization of high-quality innovation ideas.
His special expertise lies in the development of value creation, configuration, application, and operation concepts in the area of large-scale battery-electric storage systems.
His strong judgment regarding the position, expectations, and intentions of critical stakeholders - from owners to key suppliers to unions, regulation, and politics - make him ideal for the challenges of developing profitable large-scale battery plants in Germany.

Dr. Detlev Ruland
Detlev Ruland holds a PhD in mathematics and a habilitation in computer science, with a focus on AI.
He has more than 35 years of experience in top-management consulting and management positions in large corporations.
His industry experience includes high-tech and electrical engineering, IT, energy, and logistics.
He has held senior positions in several large international companies - both in consulting and in line management at division and group level.
He has extensive expertise in planning and managing large-scale projects, as well as managing complex corporate structures. Building and leading demanding teams is one of his core competencies.
Detlev Ruland has both an in-depth understanding of the industry and an extensive relationship network in the German and international energy sector.
He covers almost all areas of the supply chain - from mining to generation and distribution to sales and customer service.
Our Advisory Board
Our Advisory Board – established to actively guide our management – embodies the key success factors of the GFGBA business: a deep and thorough understanding of the technical, economical, and personal determinants of the entire German energy system.

Prof. Dr.-Ing. Klaus Kleinekorte
Klaus Kleinekorte has more than 30 years of experience in grid management and the operation of power grids.
He has in-depth, detailed knowledge of the economic and physical interrelationships of grid operations and is familiar with all aspects of their intricate systemic interdependencies.
As long-time Chairman of the "System Operation Group" in Europe, he played a key role in establishing the European "Operation Code", which is now binding for all transmission system operators.
He held various management positions at one of the largest transmission system operators in Europe.
In his role as Chief Technology Officer and member of the Executive Board, he was responsible for transmission grid planning and asset management, grid operations and system management.
He is teaching at RWTH Aachen University in the Faculty of Electrical Engineering with a tenure of over ten years, focusing on the subject “Fundamentals of System Management in the Transmission Grid.” RWTH Aachen University has been part of the German Federal and State Excellence Initiative in 2007 and 2012.
Klaus Kleinekorte has both a deep technical understanding of systems and detailed regulatory knowledge about the procurement of system services (balancing energy) and network fee calculations.
Due to his commitment to energy policy, he can rely on a large national and international network of relationships.
