Shaping the green heat supply of tomorrow together.
Together with our customers, we are already shaping the green heat supply of tomorrow.
The world needs more green heat.
The heating supply should be completely climate-neutral by 2045 at the latest. District and local heating plays a central role in this and is to be significantly expanded, especially in urban areas. However, over 80% of grid-based heat in Germany is still not renewable. We need to change this together. Quickly, efficiently, affordably and sustainably.
Kelvin Green helps you to free your heating network from CO2.
As a heating supplier, you are faced with the challenge of making your heating network climate-neutral and building new, green heating networks. But where does the necessary data come from, which technology options are the best choice in which scenario and how can a greener but more complex network be operated as optimally and automatically as possible in times of a shortage of skilled workers?
This is where Kelvin Green comes into play. We provide holistic support, from strategy and planning to the intelligent operation of your green heating network. With advice and a fully digital end-to-end operating system for the entire transformation. So that your journey to a climate-neutral heat supply is structured, fast and smooth.
The digital transformation and feasibility planner.
A good plan doesn’t have to be expensive. But it is necessary and has been mandatory since 1.1.2024. Kelvin Green provides support in applying for BEW funding and implementing ambitious transformation plans and feasibility studies. And the best thing is: instead of Excel chaos and data clutter, everything is sustainable, efficient and always up-to-date with two digital tools.
The intelligent heating network control.
Green heating networks will be much more challenging to operate, as more heat generation systems and storage facilities will need to be optimally synchronized and intelligently automated. If you know today what consumption and the energy markets will look like tomorrow, you can save a lot of money – both in terms of investment and operating costs. However, this only works with intelligent software….
Working with Kelvin Green has many advantages.
Let’s shape the green heat supply of tomorrow together.
Kelvin Green sounds exciting! I would like to find out more.
Competence comes from being able to. The Kelvin Green team.
Martin Bornholdt
A former founder and board member of DENEFF and McKinsey strategy consultant, Martin is responsible for strategy, finance and marketing at Kelvin Green. He also heads the consulting division and thus all topics relating to regulation, promotion, energy markets and transformation strategies
Geert Vanderkelen
As a hardcore geek, Geert develops the software at Kelvin Green – from the data architecture to the front end and ensures that your data is in good hands. Geert knows what he’s doing, with over 20 years of experience at Sun Microsystems, Oracle and the German Cyber Security Organization, among others. Most recently, he was a senior developer at Planetly.
Noah Mertens
As an AI expert and energy and mechanical engineer, Noah is responsible for the complex energy modeling and development of our algorithms at Kelvin Green. He has impressively proven that he can do this in numerous projects at TU Dresden and Fraunhofer IIS for adaptive systems.
Martin Heymann
If heat data is the oil of the future, Martin is the oil baron. For more than 14 years, the trained mechanical engineer specializing in energy technology at the TU Dresden has installed measurement and control technology in research projects, collected millions of data and gained important insights through complex analyses. He has focused primarily on the integration of decentralized heat generation systems. At Kelvin Green, Martin is driving forward the development of intelligent control systems for green heating networks.
Steffen Brenning
Steffen’s passion is scaling the heating transition. As a senior consultant, the qualified industrial engineer (RWTH) advises our customers on all aspects of heat network design and transformation. He contributes his extensive know-how from 5 years of experience at mechanical engineering companies and leading consulting firms in the field of energy systems and the real estate industry.
Tommy Wohlfahrt
Tommy is a specialist in the development of efficient system solutions. After completing his Masters in Computational Science and Engineering at the Technical University of Dresden, he has already gained many years of experience in algorithms, high performance computing and software development, including at Cofely Deutschland GmbH and the Institute for the Development of Adaptive Systems at Fraunhofer IIS. At Kelvin Green, Tommy uses his deep technical understanding and ability to find innovative solutions to develop an advanced optimizer for district heating networks.
Nhat Phan
Nhat is one of those developers who don’t just write code, but create real added value – with vision, precision and a deep understanding of scalable systems. As the first developer at Personio, he laid the technical foundations of one of Europe’s most successful HR tech start-ups and saw the company through to the hyper-growth phase. At Kelvin Green, he brings his extensive experience and technical excellence to develop high-performance, resilient systems. With his focus on quality, stability and sustainability, he ensures that our software not only runs reliably – but flies at peak performance.
Maciej Sypien
Maciej has over 12 years of experience in full-stack development and masters a wide range of modern technologies like no other. His deep understanding of software development with a focus on robust backend systems and intuitive frontends has been successfully demonstrated several times as a Senior Engineer and Product Owner. At Kelvin Green, he works on innovative, user-centered solutions that combine functionality and aesthetics at the highest level.
News from us.
HEAT EXPO 2025: Latest heating network simulation tools live — see you in Hall 4 · B58
We warmly invite you to HEAT EXPO in Dortmund. Meet the Kelvin Green team for a barista coffee, talk with us about your heating network—and experience our latest heating network simulation tools in compact live demos right at the booth.
Webinar review: Biogas & heating networks – new business models for biogas plants
In our webinar on June 19, 2025, we showed how biogas plants can continue to be operated economically even after the EEG subsidy expires. The strong interest...
Press release: HeatSim revolutionizes heat network planning: Kelvin Green launches new simulation tool at E-World 2025
Innovative tool for heating network operators: HeatSim enables precise operating simulations to optimize heat generation systems...
Webinar: AVB&Co: Optimized pricing for green heating networks.
The AVB District Heating Ordinance (AVB Fernwärme-Verordnung), the relevant price regulation for local and district heating, is being fundamentally revised. At the same time, the prime cost structures are changing...
Best practice webinar: Strategic heat (network) planning
More than 80% of customers of municipal utilities and energy suppliers will need a new green heating solution in the next 20 years! This means that the heat cake will be redistributed ...
New & helpful: Quick and sustainable BEW transformation plan with Kelvin Green Tools
Tataaa! After almost a year of developing, trying out and testing in practical projects, the time has finally come: Kelvin Green proudly presents...
Press release: Kelvin Green wins strategic investors for the development of intelligent district heating network control
Kelvin Green is pleased to announce that Kamstrup A/S, GEF Ingenieur AG and DnA Venture GmbH have become strategic investors in the...
Long-term scenarios of the German government: More and greener district heating by 2045.
In December, the Federal Ministry of Economics published a study on long-term energy supply scenarios. Good News....
Our first webinar on the topic of “Green heating networks” – definitely not the last!
The interest in our first webinar together with the DENEFF EDL_HUB surprised us: over 150 participants wanted to...
Our partners.
GEF Ingenieur AG
Kamstrup
DnA Ventures GmbH
VKU Kommunal Digital
GEF Ingenieur AG
Kamstrup
DnA Ventures GmbH
VKU Kommunal Digital
