
Rinke Engineering GmbHBiomass consulting & engineeringBornhagen, Germany
Leading renewable energy solutions from biomass.
Rinke Engineering GmbH is a German consulting company in the biomass sector. We plan, develop and supervise biomass heating and power plants as well as pellet and briquette production plants – for projects throughout the world.
01 About us
Twenty years of expertise in biomass
Our knowledge is based on the experience of more than 20 years of work in the biomass industry.
Our founder worked for one of the best-known companies in the industry and successfully installed more than 2 million tonnes of production capacity for wood pellets, as well as many biomass-to-energy plants such as heat plants and CHPs. Customers value our expertise in energy recovery and the knowledge and skills of our independent project managers – and turn to us for project development, planning and financing as well as project supervision after plant commissioning.
With a focus on all sectors of agricultural and forestry-derived bioenergy, steam exploded and torrefied pellets, Rinke Engineering is well positioned to contribute solutions for a worldwide sustainable energy supply, now and in the future.
Rinke has played a key role in design, installation and construction supervision – or acted as consultant – for many leading projects:
- Biomass CHP plants
- Biomass heat plants
- Pellet production plants
- Expert witness for biomass plants
Pellet production plant · aerial view02 Expertise
Your resource from start to finish
Services for large biomass heating and power plants, small decentralized heating plants and pellet and briquette production plants – for public utilities as well as family-owned companies.
Biomass CHP plants
Combined heat and power from biomass – from feedstock preparation and energy conversion to power and heat production.
Learn moreBiomass heating plants
Large and small decentralized biomass heating plants, planned and supervised as EPCM or – with partners – as EPC.
Learn morePellet production plants
ENplus A1/A2, industrial, steam exploded and torrefied pellets – plants from 15,000 to 1,000,000 t/a.
Learn moreExpert witness & due diligence
Independent expert opinions, survey reports and due diligence for biomass plants, investors and courts.
Learn more03 How we work
From the first concept to commissioning
Six preliminary activities put every project on a firm foundation – followed by a “stress-free planning package” in nine phases. With Rinke Engineering on your team, you can make informed decisions from day one.
- Concept development
- Profitability analysis
- Funds sourcing
- Gathering expertise
- Solidifying strategic partnerships
- Locating heat sinks
- Establishing the basis of the project
- Preliminary design
- Final design
- Building permission application
- Execution drawings
- Preparation of contract award
- Assisting the award process
- Project supervision
- Project documentation
Professional and thorough project planning, coupled with a precise and viable technical concept, lowers investment costs and results in a more profitable plant operation. More about our services
04 Track record
More than 2 million tonnes of pellet capacity per year
Since 2003, pellet production plants with a total nameplate capacity of more than two million tonnes per year have been realized with the involvement of Dr. Gregor Rinke – in Germany, Belgium, Norway and the United States.
- Eslohe DE
- Wismar DE
- Schwedt DE
- Herbrechtingen DE
- Ettenheim DE
- Hardegsen DE
- Vielsalm BE
- Offenbach DE
- Dotternhausen DE
- Mississippi US
- Louisiana US
- Bad Arolsen DE
- Grasmo NO
REF Selected references
- Bad Arolsen, Prinz Eugen Energiepark
Expansion of pellet production up to 85,000t/a. Raw material is softwood as shavings and wood chips. Reconstruction planning, permitting planning (BImSchG) reorganization organization, …
- Arba Grasmo, Norwegen
As project engineer involved in the planning and tendering process for a 70,000t/a steam-exploded pellet plant. Raw material is softwood as a commodity. Status of the project: Start up …
- Haskell, Drax, Beekmann, USA
(as CEO of the SGE) Planning of a pellet plant with 450.000t / a. Raw material is softwood as a commodity. Preliminary and design planning, approval planning, preparation of tender …
- Haskell, Drax, Gloster, USA
(as CEO of the SGE) Planning of a pellet plant with 450.000t / a. Raw material is softwood as a commodity. Preliminary and design planning, approval planning, preparation of tender …
- EVO Offenbach
Planning of a pellet production with waste wood, to produce 135.000t / a. Preliminary and draft planning, approval planning (first application according to the BimschG for a pellet …
- RURU Linz (A)
Planning of a bark power plant on the site of the company RURU. 32t / h steam, 485 ° C, 68 bara; Fuel Wet bark up to 65% water content. For the first time, a firing concept designed by …

05 Our team
Dr. Gregor Rinke
CEO · Rinke Engineering GmbH
When you work with Rinke Engineering GmbH, you benefit from great depth and breadth of experience, planning expertise and operational insights from leaders who understand renewable energy solutions from a global perspective.
Gregor Rinke is known as an expert in the production of wood and dedicated biomass pellets. In addition to his leadership role as CEO, he manages the team for all projects as the knowledge provider. He has also spearheaded project engineering for the development of biomass and energy production from biomass. His overriding mission is to guide the company’s strategic growth while balancing the goals of operating profitably and sustainably.
If it is going to be complicated, we always like to keep it simple.
06 Insights
Expert articles on biomass energy
Which drying technology is the most suitable one for pellet production?
Which one is the most suitable drying technology for pellet production? Find out now.
Read articleWhat is Green Energy? A Comprehensive Overview
What is Green Energy? Learn about the features and the necessity of Green Energy in this expert-written article. Find out more!
Read articleThermal conversion of biomass explained
In this expert-written article, you will learn about the thermal conversion of Biomass. Rinke Engineering is the right partner for your Biomass project!
Read article07 Collaboration
The power of collaboration
We firmly believe that moving the energy industry forward as quickly as possible is a collaborative effort that depends on mutual synergy. We are dedicated to doing everything in our power to encourage the efforts of renewable energy organizations at global, national and local levels – and enthusiastically support like-minded organizations.
VDI – Verein Deutscher IngenieureAssociation of German Engineersvdi.de
Contact Rinke Engineering GmbH
Let’s talk about your project
Whether you are evaluating a new pellet plant, expanding an existing biomass site or need an independent expert opinion – the fastest way to us is a phone call or a short e-mail. Dr. Gregor Rinke will get back to you personally.
Rinke Engineering GmbH · green energy
Schanze 6 · 37318 Bornhagen · Germany


