Welcome to Regawatt, your reliable partner for sustainable energy solutions. We are a forward-thinking company with a mission to revolutionize the way we generate and use energy. Our mission is to accelerate the global transition to renewable energy sources and empower individuals and businesses to make a positive impact on the environment.

Our vision

At Regawatt, we envision a world where clean and renewable energy is accessible to all, paving the way for a brighter, greener future. Our vision is to create a sustainable energy ecosystem that drives innovation, fosters collaboration, and reduces our environmental footprint.

Klaus Röhrmoser

Managing Director

What we do


We specialize in providing innovative renewable energy solutions tailored to our customers' individual needs. From electricity, heating, cooling, steam, syngas, bio-oil to energy storage and efficient consumption - our comprehensive range of services and products is designed to help you harness renewable resources.


Why choose Regawatt?


Expertise: Our team consists of passionate experts with extensive knowledge in the renewable energy industry. We stay at the forefront of technological advancements to provide you with the most efficient and reliable solutions.


Customized solutions: We know that every project is unique. That's why we work closely with our customers to develop customized solutions that are tailored to their goals and requirements, ensuring maximum efficiency and profitability.


Sustainability: We are committed to sustainability in everything we do. When you choose Regawatt, you're not only making a smart business decision, you're also contributing to a more sustainable planet.


Reliability: Our products and services are designed to last. We focus on quality, durability and performance to ensure your renewable energy systems deliver results for years to come.


Our commitment

Regawatt is a responsible company. We actively support local communities, advocate for clean energy policies, and continually strive to minimize our impact on the environment. Together with our customers and partners, we are working towards a cleaner, greener and more prosperous future.

Join us on this exciting journey to a sustainable energy revolution. Contact us today to learn more about how we can help you embrace renewable energy and make a meaningful difference. We will accompany you to independence.

ReGaWatt GmbH Foundation

Since the foundation of the company in 2010, our focus is now on the search for maximally efficient and at the same time low-emission biomass CHP technologies. Based on preliminary developments at Gammel Engineering GmbH, Michael Gammel and Klaus Röhrmoser quickly agreed that these should be bundled in a new company.

First steps
The origin of our idea for the Kombi Power System lies in the development of an externally fired gas turbine cycle. A corresponding plant was built in Hersbruck near Nuremberg in 2011. Optimization work on the gasifier, gas turbine, hot-air heat exchanger and heat recovery system fueled the idea process for developing a highly efficient energy system.
Second test facility

At the Bögl plants in Neumarkt i.d. Oberpfalz, the same cycle was installed 8 times larger incl. double gasifier with 8.4 MW fuel capacity. Difficulties in the gas turbine cycle led to the decision not to continue using gas turbine plants. However, the good experience with countercurrent gas generators encouraged us to pursue this technology further.

Gas purification

The updraft gasifier converts a small part of the calorific value of the feedstock into tar. In the "Bögl plant", we have therefore optimized the process so that this tar can be recovered as a valuable by-product in the form of pyrolysis oil.

In addition, we developed a gas purification system to be able to supply high-efficiency gas engines with wood gas. In a first project, a single gas cooler was combined with a wet electrostatic precipitator. After various modifications, we succeeded in generating continuous clean gas (measured and confirmed by the laboratories of FAU Nuremberg) and ensuring stable genset operation.

More than electricity

Not all support programs focus solely on the electrical power factor. For example, in the neighboring country of the Netherlands, the support of electricity and useful heat from regenerative plants is equally focused on replacing natural gas as a raw material in the long term. For the heat and power supply of the flower grower "Baas tuinplanten", we therefore installed a counterflow gas generator with a fuel capacity of 4.5 MW together with a thermal oil system, a 500 kW ORC plant and a flue gas condenser to recover the low temperature heat.

The almost dust-free flue gases enabled us to operate the thermal oil boiler as a cost-efficient standard boiler plant without a sootblower. In this case, since the wood chips fed are very moist and the hot water return is rather low, the flue gas condenser operates very efficiently and recovers more than 900 kW on average. The plant is easy to operate and has been running continuously at full load since 2018 with an overall efficiency > 95%.

Pyrolysis oil combustion and condensate evaporation

Since it became apparent that the aqueous phase of the gas condensate cannot be combusted together with the pyrolysis oil, three years of intensive development followed for us, during which we learned how to evaporate the condensate and at the same time avoid the formation of tough polymers. The FAU Nuremberg team around Prof. Jürgen Karl actively supported us as a scientific partner in this process.

Puidoux combined cycle power plant

The Swiss company "Romande Energie" placed its trust in our plant combination and ordered the construction of the "Puidoux Kombi Power System" with a 770 kWel unit. The heat demand of the district heating system was lower than initially planned, while the feed-in tariff seemed relatively high. It therefore made sense to generate the maximum electrical power by combining our gas engine genset with an ORC system. The overall efficiency can thus be more than 30%.

The plant has been operating successfully since 2018. The company invested in another plant similar in construction for the Charmey commune site, which has been in continuous operation since the beginning of 2020.

Own test facility

After 10 years of development, pilot plants and 2nd generation commercial plants, we are currently working on making the Kombi Power System even more cost-efficient and profitable.

With the support of the "Agency for Renewable Resources (FNR)", an R&D program has been launched. The most relevant tasks from this are for us:

Expansion of the fuel range:
In the future, other fuels such as demolition wood, compost, miscanthus, corn, etc. are to be used.

Utilization of pyrolysis oil:
Pyrolysis oil is suitable, for example, for the production of second-generation biodiesel or as a feedstock for the chemical industry. We want to explore these potential applications further.

For this purpose, a small experimental gasification plant was designed - fully equipped with gas cooling and ESP - and erected at our customer "Blue Energy" in Senden/Ulm.

The leap to Japan

Through the strategic cooperation with Polytechnik (A-Weissenbach), contact was established with Exeo Corporation, Tokyo. After tests with Japanese cedar chips in our test gasifier, we received the order to supply a reference plant for Furodono (Fukushima Province). 

The values of the ReGaWatt GMbh


For the opportunity to be involved in something as big as the energy transition. For many small and large experiences, but above all for the human encounters. For our colleagues, our customers and clients and the trust that goes with it.


We are hungry for exciting projects and new challenges. The world is constantly changing, and so are we. We are alert and constantly learning new things.

Team Spirit

We are positive, honest, reliable, respectful and live a trusting team spirit. We represent ReGaWatt GmbH credibly and stand for our values. We communicate openly and honestly with our customers and colleagues. Like a well-functioning gear, one cog runs into the other.

New Work

Positive corporate culture is important to us; together we develop concepts and models that make everyday work easier and ensure a "work-life balance". Trust and a positive feedback culture are the basis for this.


We are aware of our responsibility and are working on climate-friendly future technologies. The vital interest in leaving a people-friendly planet for future generations is our aspiration.


We think "out of the box", react quickly and nimbly, like a speedboat. Our strong network helps us solve even the most difficult tasks.


Behind every successful company there is also a successful network:

Cooperation partner:

Polytechnic logo
ProSio engineering Logo
Aprovis Logo
Jenbacher Logo
Gammel Engineering Logo

Network partners:

FEE Logo
FNR Logo


Let's have a personal conversation to coordinate how we can guide you to independence.