Energy, Environment, Industry - Your contacts at the DIHK

In the Energy, Environment, Industry department of the German Chamber of Commerce and Industry (DIHK), economic policy discussions on energy and climate policy, environmental and resource issues as well as industrial and innovation policy converge. The team works on topics such as national and international energy supply, operational climate protection, hydrogen strategies, electricity market design and environmental policy framework conditions - while representing the perspective of companies to politics and the public.

Department Management

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Dr. Sebastian Bolay

Head of Energy, Environment, Industry

E-mail
bolay.sebastian@dihk.de
Telephone
+49 30 20308 2200
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Jacqueline Hauck

Assistant to the Head of Department for Energy, Environment, Industry

E-mail
hauck.jacqueline@dihk.de
Telephone
+49 30 20308 2201

Energy, Environment, Industry Department

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Dr. Ulrike Beland

Director Economic Aspects of Climate and Energy policy

E-mail
beland.ulrike@dihk.de
Telephone
+49 30 20308 2204
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Hauke Dierks

Head of Environmental and Resource Policy

E-mail
dierks.hauke@dihk.de
Telephone
+49 30 20308 2208
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Dr. Susanne Gewinnus

Director Industry and Research Policy

E-mail
gewinnus.susanne@dihk.de
Telephone
+49 30 20308 2213
Hilden, Marlon

Marlon Hilden-Gejadze

Head of Unit European and International Energy and Climate Policy

E-mail
hilden.marlon@dihk.de
Telephone
+32 2286 1635
Hnida, Tamara

Tamara Hnida

Administrative Support/Assistant

E-mail
hnida.tamara@dihk.de
Telephone
+49 30 20308 2205
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Lukas Littmann

Head of Section Innovation Policy

E-mail
littmann.lukas@dihk.de
Telephone
+49 30 20308 2214
Maizieres, Louise

Louise Maizières

Head of Department for Hydrogen and International Energy Partnerships

E-mail
maizieres.louise@dihk.de
Telephone
+49 30 20308 2207
Petri, Christoph_quer

Christoph Petri

Head of Unit for Environmental and Raw Materials Policy

E-mail
petri.christoph@dihk.de
Telephone
+49 30 20308 2212
Porträtfoto von Erik Pfeifer

Erik Pfeifer

Head of Department for Corporate Climate Protection

E-mail
pfeifer.erik@dihk.de
Telephone
+49 30 20308 2206
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Claudia Reich

Administrative Officer/Assistant

E-mail
reich.claudia@dihk.de
Telephone
+49 30 20308 2209
Porträtfoto Kathrin Riedler

Kathrin Riedler

Head of Unit European Environmental and Resource Policy

E-mail
riedler.kathrin@dihk.de
Telephone
+32 2 286-1610
Valyaeva, Tatiana

Tatiana Valyaeva

Head of Energy and Environmental Policy – Buildings and Mobility Sectors

E-mail
valyaeva.tatiana@dihk.de
Telephone
+49 30 20308 2216
Wenz, Niclas

Dr. Niclas Wenz

Head of Unit for Electricity Market, Renewable Energy and National Climate Protection

E-mail
wenz.niclas@dihk.de
Telephone
+49 30 20308 2202

Released 06.02.2026