greenValue® - Specialized services for renewable energy projects – since 2002

About us

greenValue is an independent and specialized service provider in the renewable energy sector. We offer support for technical and commercial M & A processes and provide services like due diligence, project management, and asset management.

Daniel Kellermann, geschäftsführender Gesellschafter
Daniel Kellermann,
geschäftsführender Gesellschafter

We are experienced in all implementation stages of sustainable real estate, biomass, and photovoltaic projects. We also support our clients in securing the funds required.

Since 2012, our company has focused on biogas upgrading plants and related interconnection facilities. We are now in the early stages of adding hydrogen projects to our portfolio. Most of our clients are part of the energy supply sector as well as institutional investment organizations.

As a company with long-term expertise in renewable energy, we bring extensive know-how to all projects. To ensure the high quality of our work, we follow a quality management system that conforms to DIN EN ISO 9001:2015. Once a year, we renew our certification. Furthermore, we constantly optimize our internal processes and improve our knowledge through continuing education.

Since we work in the field of renewable energies, it goes without saying that we consider all aspects of sustainability. In our sustainability report, published every two years, you will find more information on how greenValue implements sustainability throughout its day-to-day operations.

For more information, please send us a message. Let’s keep in touch. Follow us on Instagram, Twitter, and LinkedIn.

Daniel Kellermann, Managing Director

Our services

Mergers and acquisition

Our M&A activities currently focus on the biogas sector and include:

  • Due diligence
  • Strengths, weaknesses, opportunities, and threats analysis (SWOT)
  • Transaction control
  • Coordination between stakeholders
  • Interface management during project implementation

Project management

Services include

  • Schedule and cost optimization
  • Project concept, structure, and planning
  • Risk mitigation ( e.g. if the construction time is exceeded)
  • Monitoring and controlling the construction progress (e.g. construction meetings and documentation)
  • Monitoring regulation compliance, feedstock supply, and plant performance
  • Variance analysis (financial, schedule), post project cost analysis

Asset management

Services include

  • Permit applications and government communication
  • Substrate management for biogas projects (e.g. supply and quantities, coordination of harvest services)
  • Acquisition and support of project partners (e.g. negotiating substrate supply contracts)
  • Supporting operations management, regular on-site inspections
  • Coordination of biomethane sales, substrate purchases, invoicing, etc.
  • Energy management and energy tax refund
  • Stakeholder and investor reporting

News and recent projects


Article - Green hydrogen as a game-changer

July 2022 - With a share of 75 %, hydrogen is the most frequent element in our solar system. Green hydrogen and its derivatives are considered a key technology for a successful energy transition and the reduction of carbon dioxide emissions. The National Strategy on Hydrogen adopted on june 10th, 2020 is one of the political measures aimed at getting the market up and running. 

Depending on the type of production, different colors are assigned to hydrogen - gray, blue, turquoise, and green. In this comparison, gray hydrogen is the most economical but at the same time the most polluting type due to the process of steam reforming of natural gas. read the full article




Successful recertification process

October 2021 - This year greenValue was examined by the auditor once more, whether the introduced quality management system is being maintained and effective. The second recertification was successful again.

Employees, partners, and customers can thus verifiably trust in a solid corporate structure and method that considers the mechanisms and rules of DIN EN ISO 9001:2015. 

The QM system supports the structuring of processes, provides an overview and transparency, and helps with daily improvements. Gained experience flows into the evaluation of processes and prevents errors in internal processes and customer orders. In addition, the structured processes facilitate the onboarding of new employees.



Energy Park real laboratory at Bad Lauchstädt

June 2021 - greenValue is acting as project manager for the consortium leader in the context of the Energy Park real laboratory at Bad Lauchstädt. As part of the real laboratory, hydrogen will be produced from wind energy in project phase 2.1 and transported to the neighbouring Leuna chemical triangle. In project phase 2.2, the green hydrogen will be stored in a salt cavern. The project is being implemented by the consortium partners VNG, Terrawatt, Uniper, VNG Gasspeicher, Ontras and DBI.

The Energy Park at Bad Lauchstädt was selected as a real laboratory for the energy transition as part of the German government's 7th Energy Research Programme. More information at



Biomethananlage Gordemitz

April 2021 - Successfully implemented projects are the best reference. greenValue recently finished a biomethane plant project with a feed-in capacity of up to 700 Nm3/h. We were in charge of coordinating all construction activities starting at the end of 2020 to the first biomethane feed-in and beyond. You can find a detailed article here.






Our list of References highlights many previous projects but is currently only available in German.