Our consulting team
Hand in hand for secure advancement
Our team thrives on a collegial corporate culture. Our consulting strategies are dynamic, constantly growing and adapting to current demands. We mutually animate our projects in an intensive exchange, with courageous ideas, trusting cooperation and strong reflection during all project steps. r2b consists of an interdisciplinary team, which is perfectly coordinated due to many years of cooperation and is familiar with all energy industry processes.
In addition, we enjoy working with partners from science, jurisprudence and companies. What unites us all is the common passion for sound energy advice and its impact on a company and on politics. We are neither afraid of new challenges nor of explosive topics. What we approach is not the first, but the best solution for your company. We accompany our clients flexibly and with foresight, going into depth in terms of content without losing sight of the big picture. In doing so, we rely on long-term and trustworthy advice. Our team – based in Cologne – consists of experts in energy markets, energy policy and quantitative methods with extensive experience in consulting, corporate practice and science, as well as analysts and a team assistant in the back office. Likewise, r2b offers exciting activities for students, also in the form of internships.
What sets us apart?
We don’t just advise – with our expertise, we also want to contribute to a better position in the energy industry with every project. This is a field for which we burn, in which we have grown to meet challenges and in which we have found our calling. In our eyes, supplying our society with energy has a lot in common with climbing a mountain, and not infrequently this becomes a tightrope walk in the entrepreneurial and political spheres.
Resources must be used effectively to reach the summit safely. Experienced companions are indispensable for many a climb.

This is exactly where we see our competence: to show you the right way, to define intermediate stages and, together with you, not to lose sight of the goal, no matter what challenges are waiting along the way.
This passion for applying complex scientific methods to practically relevant issues and offering innovative services steers our expertise from small projects to long-term studies to highly complex, mathematical models and tools for the energy market.
Our Team

Dr. Ralf Wissen
Partner
E-Mail
ralf.wissen@r2b-energy.com
Telefon
+49 (0)221-78 95 98-64

Prof. Dr. Felix Müsgens
Partner
E-Mail
felix.muesgens@r2b-energy.com
Telefon
+49 (0)221-78 95 98-65

Martin Lienert
Partner
E-Mail
martin.lienert@r2b-energy.com
Telefon
+49 (0)221-78 95 98-63

Karin Röser
Assistant to the Management
E-Mail
karin.roeser@r2b-energy.com
Telefon
+49 (0)221-78 95 98-67

Lisann Rommerskirchen
Manager Product Development
E-Mail
lisann.rommerskirchen@r2b-energy.com
Telefon
+49 (0)175 28 48 489

Valentina Leo
Referentin Marketing
E-Mail
valentina.leo@r2b-energy.com
Telefon
+49 (0)157 58 720 389

Robert Diels
Manager
E-Mail
robert.diels@r2b-energy.com
Telefon
+49 (0)221-78 95 98-71

Christoph Schmitz
Manager
E-Mail
christoph.schmitz@r2b-energy.com
Telefon
+49 (0)221-78 95 98-73

Lukas Strickling
Senior Consultant
E-Mail
lukas.strickling@r2b-energy.com
Telefon
+49 (0)221-78 95 98-68

Marcel Brodhof
Consultant
E-Mail
marcel.brodhof@r2b-energy.com
Telefon
+49 (0)221-78 95 98-61

Fabian Roloff
Consultant
E-Mail
fabian.roloff@r2b-energy.com
Telefon
+49 (0)221-78 95 98-62

Nedim Starcevic
Consultant
E-Mail
nedim.starcevic@r2b-energy.com
Telefon
+49 (0)221-78 95 98-81

Severin Rüther
Senior Analyst GIS
E-Mail
severin.ruether@r2b-energy.com
Telefon
+49 (0)221-78 95 98-80

Christoph Esser
Senior Analyst
E-Mail
christoph.esser@r2b-energy.com
Telefon
+49 (0)221-78 95 98-66

Mohammad Changiz
Senior Analyst
E-Mail
mohammad.changiz@r2b-energy.com
Telefon
+49 (0)221-78 95 98-69

Philipp Heidinger
Senior Analyst
E-Mail
philipp.heidinger@r2b-energy.com
Telefon
+49 (0)221-78 95 98-76