Development, construction, operation and service of wind, solar and hybrid power plants including green hydrogen
ENERTRAG SE
Dauerthal · Berlin · Rostock · Dortmund · Lübeck · Edemissen · Hamburg · Prenzlau · Cottbus · Kiel · Potsdam · Leipzig · Neuville-sur-Oise · Dijon · Glisy · Lyon · St Quentin · Szczecin · Katowice ·New on Amplifa
About ENERTRAG
ENERTRAG SE is an independent energy company headquartered in Dauerthal (Uckermark) that generates electricity and heat exclusively from renewable sources. The company develops, builds and operates wind power and photovoltaic installations as well as hybrid power plants that combine wind and solar energy with battery storage, wind-to-heat storage and electrolysers for the production of green hydrogen. Since 2011, ENERTRAG has been operating the world's first hybrid power plant of this kind in Prenzlau. The portfolio is complemented by manufacturer-independent service, maintenance and repair of wind turbines at 16 service locations in Germany as well as sites in Poland and South Africa, including major component replacement, non-destructive material testing and welding repairs on steel components. Technical and commercial operations management as well as the proprietary Powersystem software for monitoring more than 1,100 installations with 2.6 GW of capacity round out the service offering. With more than 1,800 MW of installed capacity, around 945 MW of wind in its own portfolio and more than 1,200 employees in around ten countries, ENERTRAG is active along the entire value chain of the energy transition, including major projects in Poland, France, Namibia and Vietnam.
- Site
- Dauerthal
- Processes
- Service, maintenance and repair of wind turbines (maintenance, upkeep, fault clearance), Major component replacement (main and yaw gearboxes, rotor bearings, generators), Non-destructive material testing (magnetic particle testing, ultrasonic testing), Welding repairs (certified according to DIN EN ISO 3834-2), New construction of steel structures (certified according to DIN EN ISO 1090-1), Overhaul of DeWind hydraulic pitch hubs, Decommissioning and environmentally sound recycling of old installations (wind turbines), Installation of wind turbines and photovoltaic installations
- Materials
- Steel, Cast, Plastic
- Certificates
- ISO 9001:2015, ISO 14001:2015, ISO 45001:2018, DIN EN ISO 3834-2 (welding repairs), DIN EN ISO 1090-1 (new construction of steel structures), ISO 9001, ISO 14001, ISO 45001, EN 1090, Other (DIN EN ISO 3834-2, GWO)
- Founded
- 1998
- Employees
- 1200+
- Industries
- Renewable energy / wind power, Photovoltaics, Hydrogen / power-to-gas, Energy storage, Heavy industry (green hydrogen, steel), Aviation (eSAF)
- 01
Wind and PV project development
- 02
Planning and permitting
- 03
Installation of the plants
- 04
Grid connection / substation
- 05
Technical and commercial operations management
- 06
Service, maintenance and repair
- 07
Decommissioning and recycling
Materials and Processes
Steel
Material for welding repairs according to DIN EN ISO 3834-2, new construction of steel structures according to DIN EN ISO 1090-1, as well as major components such as gearboxes, rotor bearings and generators.
Cast
Component material in the context of decommissioning and recycling of old wind turbines.
Plastic
Material components in the spare parts sector, including in hydraulics and control technology.
Locations
Dauerthal
DEHeadquarters, control center and energy campus
- Materials
- Steel
- Dauerthal control center (1,100 installations, 2.6 GW, since 1999)
- Powersystem software
- Welding-certified workshop (DIN EN ISO 3834-2)
- Training and qualification center
- Spare parts warehouse with over 5,000 items
Prenzlau
DEHybrid power plant, systems engineering and Dark Sky
- Materials
- Steel
- Prenzlau hybrid power plant (since 2011)
- 500-kW electrolyser
- Planned 130-MW electrolysis plant Prenzlau North (2029)
Uckermark (hybrid power plant)
DEWind field, storage and grid infrastructure
- Materials
- Steel
- GE 5.5/158/5500 wind turbine Falkenwalde (5.5 MW, 2021)
- Battery storage Cremzow (22 MW / 34.8 MWh, 2019)
- Wind-to-heat storage Nechlin
- Bertikow substation (605 MW, 2003)
- PV field Kreuz Uckermark (20 MW, 2023)
Lübeck
DEENERTRAG Service
- Materials
- Steel
- Service site for wind turbines
Edemissen
DEENERTRAG Betrieb GmbH, inspections including drone inspections
- Drone inspection of wind turbines
Szczecin
PLENERTRAG Polska Energia Sp. z o.o.
Neuville-sur-Oise
FRFrance branch (120 employees, 537 MW in 44 wind farms)
St Quentin
FRENERTRAG Service France (since 2018)
- Materials
- Steel
- Service and maintenance of wind farms and PV installations
- Monitoring of main bearings and rotor blades
Cape Town
ZABranch and service location
Windhoek
NAENERTRAG Namibia (Hyphen project, 3.5 GW green hydrogen)
Service Spectrum
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Service, maintenance and repair of wind turbines (maintenance, upkeep, fault clearance)Assembly | – | – | – | – | – |
| Major component replacement (main and yaw gearboxes, rotor bearings, generators)Assembly | – | – | – | – | Stahl |
| Non-destructive material testing (magnetic particle testing, ultrasonic testing)Testing | – | – | – | – | Stahl |
| Welding repairs (certified according to DIN EN ISO 3834-2)Joining | – | – | – | – | Stahl |
| New construction of steel structures (certified according to DIN EN ISO 1090-1)Joining | – | – | – | – | Stahl |
| Overhaul of DeWind hydraulic pitch hubsAssembly | – | – | – | – | – |
| Decommissioning and environmentally sound recycling of old installations (wind turbines)Assembly | – | – | – | – | Stahl, Guss |
| Installation of wind turbines and photovoltaic installationsAssembly | – | – | – | – | – |
| Spare parts distribution (gearboxes, yaw drives, hydraulic stations, pitch systems)Assembly | – | – | – | – | Stahl, Kunststoff |
| Hydrogen production via electrolysis (PEM electrolyser, 10–130 MW, Prenzlau hybrid power plant)Engineering | – | – | – | – | – |
| Wind farm project development and repoweringEngineering | – | – | – | – | – |
| Technical operations management and inspection of energy installations (including drone inspection)Testing | – | – | – | – | – |
| Commercial operations management of energy installationsEngineering | – | – | – | – | – |
| Independent service and maintenance for wind farms and photovoltaic installations in FranceAssembly | – | – | – | – | – |
12 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Wind turbine | General Electric GE 5.5/158/5500 | – | – | 2021 | Falkenwalde wind field, Uckermark |
| Battery storage | – | – | 22 MW / 34.8 MWh | 2019 | Cremzow |
| Wind-to-heat storage | – | – | – | – | Nechlin |
| Substation | – | – | 20–30 kV / 110–380 kV, 605 MW | 2003 | Bertikow |
| Control center / Control Center | – | – | 1,100 installations, 2.6 GW | 1999 | Dauerthal |
| PEM electrolyser | – | – | 10 MW | 2026 | Osterweddingen |
| Electrolysis plant | – | – | 130 MW | 2029 | Prenzlau North |
| Electrolysis plant | – | – | 60 MW (stage 1), 180 MW (stage 2) | 2029 | Pasewalk |
| Battery storage | – | – | 200 MW | 2027 | Bertikow |
| Electrolyser (hybrid power plant) | – | – | 500 kW | 2011 | Prenzlau |
| Wind farm | – | – | 186 MW | 2022 | Dunowo, Poland |
| Wind farm | – | – | 197.2 MW | 2029 | Oschersleben |
Additional services
Reference customers
Quality and Certification
ENERTRAG Service is certified according to ISO 9001:2015, ISO 14001:2015 and ISO 45001:2018. Welding repairs are certified according to DIN EN ISO 3834-2 and the new construction of steel structures according to DIN EN ISO 1090-1; regularly conducted safety training follows the GWO standard.
| Evidence | Dauerthal |
|---|---|
| ISO 9001 | |
| ISO 14001 | |
| ISO 45001 | |
| EN 1090 | |
| Other (DIN EN ISO 3834-2, GWO) |
Company History
- 1992
Company founder Jörg Müller erects the first wind turbine
- 1997
Founding of Uckerwerk Energietechnik GmbH by Jörg Müller and Tilo Troike
- 1998
Founding of Enertrag AG; first wind farms commissioned
- 1999
Commissioning of the control center in Dauerthal
- 2002
First international expansion with a wind farm in France
- 2003
Relocation of headquarters to Dauerthal (Schenkenberg)
- 2009
Groundbreaking ceremony for the world's first industrial hybrid power plant by Chancellor Merkel
- 2011
Commissioning of the Prenzlau hybrid power plant (world's first hybrid power plant)
- 2013
520 wind turbines domestically and abroad
- 2018
Establishment of ENERTRAG Service France in St Quentin
- 2019
Award of two wind projects near Koszalin (Poland) with 186 MW; commissioning of the Cremzow battery storage
- 2022
Conversion of Enertrag AG into ENERTRAG SE; Jörg Müller moves to the supervisory board, Gunar Hering becomes CEO; completion of the Dunowo wind farm (Poland, 186 MW)
- 2026
EU France handover program: €1.1 billion investment program until 2030; €350 million funding commitment for Brandenburg eSAF in Schwedt