The Sonnenexpert team for your solar project

We are your experts for solar systems with full service

Our dedicated team from sun expert The Group works every day to make clean energy accessible to everyone. Whether planning, installation, or maintenance: We combine expertise, experience, and passion to develop sustainable photovoltaic solutions for private households and Investors to realize. As Solar experts We bring many years of expertise in the areas Photovoltaics, power storage and energy solutions We rely on individual advice and accompany you step by step. Our team of professionals realizes Solar projects throughout Germany, from planning to final installation, all from a single source. Invest with us in solar energy, whether large solar roofs or huge Solar parks. With Sonnenexpert you not only choose high-quality Solar technology, but also for a team that puts its heart and soul into its work. Together, we're taking the step toward a greener future.

General Manager

Gunnar Geske

Owner / Chairman of the Board
General Manager

geske@sonnenexpert.com

Tel. +49 381 806 992 11

Clemens Austria

Managing Director
General Manager

oestreich@sonnenexpert.com

Tel. +49 381 806 992 18

Ina Briesemeister

Authorized Representative
Accounting

briesemeister@sonnenexpert.com

Tel. +49 381 806 992 10

Mario Kosubek

Controlling

kosubek@sonnenexpert.com

Tel. +49 381 806 992 10

Sabrina Stone

Management assistant

stein@sonnenexpert.com

Tel. +49 381 806 992 10

Legal department

Olivia Mielke

Lawyer (in-house lawyer)

mielke@sonnenexpert.com

Tel. +49 381 806 992 23

Marketing

Sven Bockholdt-Deuß

Marketing

sven.bockholdt-deuss@fri.energy

Tel. +49 385 489 326 66

Procurement

David Just

Procurement

just@sonnenexpert.com

Tel. +49 38204 8799 61 

Project development & sales

Jacqueline Dähn

project development

daehn@sonnenexpert.com

Tel. +49 381 806 992 21

Tan Nguyen Manh

Sales

nguyenmanh@sonnenexpert.com

Phone +49 151-185 022 58

Tom Burand

Grid connection management

burand@sonnenexpert.com

Tel. +49 381 806 992 14

Project management & planning

Andre Krause

Project Manager

krause@sonnenexpert.com

Tel. +49 381 806 992 24

Marcel Walewski

Specialist electrical planner

walewski@sonnenexpert.com

Tel. +49 381 806 992 26

Enrico Bush

Electrician/operations manager

buechse@sonnenexpert.com

Tel. +49 381 806 992 10

Kay Schroeder

plant planner

schroeder@sonnenexpert.com

Tel. +49 381 806 992 28

Aymen Saoudi

Certifier

saoudi@sonnenexpert.com

Tel. +49 381 806 992 14

André Tylla

Project Manager Planning and Maintenance of Large-Scale PV Systems

tylla@sonnenexpert.com

Tel. +49 0171 310 53 39

Construction management & commissioning

Dirk Evers

Construction supervision

evers@sonnenexpert.com

Tel. +49 381 806 992 10

Renaldo Burk

Construction supervision

burk@sonnenexpert.com

Tel. +49 160 605 98 56

Christopher Melms

roof renovation

melms@sonnenexpert.com

Tel. +49 381 806 992 10

Daniel Ratsch

project staff

raetsch@sonnenexpert.com

Tel. +49 151 576 231 81

Maurice Dragon

project staff

dragon@sonnenexpert.com

Tel. +49 171 350 14 57

Dirk Schneider

Electrician/service technician

schneider@sonnenexpert.com

Tel. +49 151 281 063 11

René Grabow

Electrician/service technician

grabow@sonnenexpert.com

Tel. +49 151 431 271 15

The Sonnenexpert team realizes large solar projects

Solar project with solar roofs in Bentwisch in the state of Mecklenburg-Vorpommern with Sonnenexpert

in planning

PVA Bentwisch

roof area system

in planning

PVA Bentwisch

roof area system

bentwishes

Mecklenburg-Vorpommern

2026

OPERATION

4.624 kWp

Performance

Learn more
Solar project with solar roofs in Pretzsch in the state of Saxony-Anhalt with Sonnenexpert

in planning

PVA Pretzsch

roof area system

in planning

PVA Pretzsch

roof area system

Pretzsch

Saxony-Anhalt

2026

OPERATION

750 kWp

Performance

Learn more
Solar project with solar roofs in Bad Bibra in the state of Saxony-Anhalt with Sonnenexpert

in planning

PVA Bad Bibra

roof area system

in planning

PVA Bad Bibra

roof area system

Bad Bibrac

Saxony-Anhalt

2026

OPERATION

454 kWp

Performance

Learn more
Solar project with solar roofs in Willich in the state of North Rhine-Westphalia with Sonnenexpert

under construction

PVA Willich

roof area system

under construction

PVA Willich

roof area system

I want to

Nordrhein-Westfalen

2025

OPERATION

721 kWp

Performance

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Solar project with solar roofs in Hettstedt in the state of Saxony-Anhalt with Sonnenexpert

under construction

PVA Hettstedt

roof area system

under construction

PVA Hettstedt

roof area system

hettstedt

Saxony-Anhalt

2026

OPERATION

954 kWp

Performance

Learn more
Solar project with solar roofs in Bad Düben in the state of Saxony with Sonnenexpert

under construction

PVA Bad Düben

roof area system

under construction

PVA Bad Düben

roof area system

Bad Duben

Saxony

2026

OPERATION

512 kWp

Performance

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Solar project with solar roofs in Arnstadt, Thuringia with Sonnenexpert

under construction

PVA Arnstadt

roof area system

under construction

PVA Arnstadt

roof area system

Arnstadt

Thuringia

2025

OPERATION

1.000 kWp

Performance

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Investment property in solar energy at Sonnenexpert in Gubkow

in implementation

Niekrenz/Gubkow

outdoor plant

in implementation

Niekrenz/Gubkow

outdoor plant

Niekrenz/Gubkow

Mecklenburg-Vorpommern

First quarter of 2026

OPERATION

15.395 kWp

Performance

Learn more
Sonnenexpert Group

Since our founding in 2012, we have been dedicated to the power of the sun. Our team of engineers, roofers, and electricians implements solar systems on roofs and open spaces throughout Germany and beyond, from planning to final installation, all from a single source. Leverage our expertise and experience for your solar project.

Service

Full service from planning to final installation

Offers

Wide product range for solar energy

Solar technology

Networked complete solutions

Energy storage

Off-grid solar storage solutions