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The WT Energiesysteme Group from Riesa

WT Energiesysteme GmbH, based in Riesa, has been an experienced specialist since 2002 in the planning, construction, maintenance and modernisation of substations and grid feeders in the 10 to 380 kV range – this is our core competence. As a growing group of companies, we bring together expertise ranging from planning to battery storage, ensure that energy is reliably delivered to businesses, local authorities and households, and are actively shaping the energy transition.

WT Energiesysteme employees loading a power transformer using a truck-mounted crane at the company's site in Riesa.

Our group

Our group of companies

WT Energiesysteme GmbH

Specialist and main contractor for the design, construction and modernisation of turnkey substations and grid connections ranging from 10 to 380 kV.

WT Energiespeicher

Large-scale Battery Energy Storage Systems (BESS) Division – storage technology and substation expertise within a single group of companies.

EAS Energiesystemtechnik

As a brand of the WT Energiesysteme Group, EAS Energiesystemtechnik specialises in bespoke control cabinet manufacturing. From January 2027, EAS will consolidate its manufacturing capabilities in the new production hall at its Riesa site, thereby strengthening its own value creation within the group.

Services

A one-stop service

Our high level of in-house capability covers the entire value chain and reduces our reliance on third parties – ensuring end-to-end responsibility for the project. Feasibility studies, planning permission, design. Control cabinet manufacturing, plant engineering, electrical installation. Grid connection, commissioning. Maintenance and modernisation of substations. The Group’s business areas: substations, grid feed-ins, battery energy storage systems (BESS), control cabinet manufacturing and line construction.

Quality & Certifications

Figures, data, facts

More about the company

since 2002

Expert in the construction of substations

over 250 substations

successfully implemented.

over 200 staff members

at our sites in Riesa, Dresden, Pirna and Rostock.

Locations

Our locations: Head office in Riesa

Head office in Riesa; further sites in Dresden, Pirna (from Q3 2027) and Rostock, where the hub for the 380 kV projects is being built. At our main site in Riesa, we are investing around 40 million euros in expansion and new construction.

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Commitment

Regional Responsibility & Commitment

WT Energiesysteme carries out projects throughout Germany whilst remaining firmly rooted in the Riesa, Meissen and Dresden regions. As a regional employer, we create skilled jobs and fulfil our social responsibilities. Through numerous charitable donations and sponsorship schemes, we support children and young people in particular, as well as initiatives in the fields of education, social welfare, culture and sport. At the same time, we continuously invest in the further development of our sites, focusing on sustainable energy concepts involving photovoltaics and modern charging infrastructure. Our long-term goal is to further increase the energy independence of our sites.

Frequently Asked Questions

Frequently asked questions about the WT Energiesysteme Group

WT Energiesysteme GmbH, headquartered in Riesa, has specialised since 2002 in the design, construction, modernisation and commissioning of substations and grid connections in the voltage range from 10 to 380 kV. With over 250 substations completed, around 200 employees and a high level of in-house expertise, WT is one of Germany’s leading general contractors for turnkey substations and high-performance energy infrastructure.

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Find out more about WT Energiesysteme GmbH

Would you like to find out more about the WT Energiesysteme Group or discuss a project? We’d be happy to help.

Robert Stefaniak

Sales Manager

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