
About us
Renewable energy from Frankfurt am Main
Pioneer
since 1995
Planned by us. Run by us. For decades.
A family company in its second generation.
The GERES group of companies offers a comprehensive range of services in the planning, construction and technical management of facilities for generating renewable energy. As a family-owned company, the GERES-Group started out in Frankfurt am Main in 1995 and has been a pioneer in onshore wind project development in Germany ever since.
Sustainability as a company philosophy
From the outset, the GERES-Group has pursued a company philosophy that places the highest value on sustainable, high-quality project design. The focus is not only on safety and long-term predictability, but also on making projects compatible with the environment and society.
More than 200 megawatts planned and permitted
To date, the group of companies has planned wind energy projects with a total capacity of more than 200 megawatts in Germany and obtained the permits for them. It also operates its own wind turbines with a capacity of 166 megawatts. In the field of solar energy, the company has developed more than 50 megawatts internationally up to construction readiness.
Value creation stays in the region
Each year the GERES-Group feeds electricity from renewable sources into local grids and thereby makes a significant contribution to global climate protection. Realising its projects does not only advance the shift towards climate-neutral electricity generation. Local municipalities also benefit considerably from the financial returns. These are strengthened by participation models and by long-term lease and tax revenue, which supports the regional economy and makes municipalities more sustainable. With a further 150 megawatts in development, the company will continue to rely on a sustainable energy mix that both protects the environment and maximises economic benefit at local level.
Management
The management board of the GERES-Group
The GERES-Group is a family-owned company from Frankfurt am Main and is run today by the second generation. As a family-run group of companies, we have stood for efficiency, quality, trust and reliability for more than 30 years.
With lean structures and clear decision-making, we put our knowledge to work in high-quality projects. Our focus is not on growth at any price, but on sustainable solutions and long-term success.
This is how we build the basis of trust for stable partnerships with our employees, customers, landowners, municipalities and business partners.
Norbert Wiemann
CEO
Dipl.-Kfm. (business administration), founder
Carmen Wiemann
CEO
Business administrator
Etienne Wiemann
CEO
B. Sc., PG-Dip., M. Sc.
Fabrice Wiemann
CEO
Partners
Strong partners at our side
In order to carry out our projects successfully and with a clear focus, we work with strong business partners at our side. We secure high availability, quality and performance through cooperation with capable companies in plant construction, engineering, planning, construction, law, consulting and financing.
- Turbine manufacturer
EnerconWebsite(opens in a new tab) - Financing
CommerzbankCenter of Competence Renewable EnergiesWebsite(opens in a new tab) - Financing
DKBDeutsche Kreditbank AGWebsite(opens in a new tab) - Consulting
Klug & EngelhardWebsite(opens in a new tab) - Legal
MaslatonWebsite(opens in a new tab) - Legal
AGS LegalWebsite(opens in a new tab) - Engineering
Gubing GroupWebsite(opens in a new tab) - Engineering consultancy
Paulus & PartnerWebsite(opens in a new tab) - Construction
Fey TiefbauWebsite(opens in a new tab) - Construction
Gihl BauWebsite(opens in a new tab) - Civil engineering
Tiefbau WeberTiefbau GmbH Georg WeberWebsite(opens in a new tab) - Engineering
ImresWebsite(opens in a new tab) - Engineering consultancyLahmeyer InternationalLahmeyer International GmbH, Bad Vilbel
- Project partnerGreen lineHamburg
- LegalAmbrozic & KollegenLaw firm, Wiesbaden
- LegalBRP Renaud und PartnerLawyers, patent attorneys, tax advisersWebsite(opens in a new tab)
- Geotechnical engineeringGEO tech
