
Planning, construction and commissioning of biogas and biomethane plants as well as operation management and service from a single source
EnviTec Biogas AG
Lohne · Saerbeck · Calbe/Saale · Friedland · Güstrow · Forst · Rugeley (UK)New on Amplifa
About EnviTec Biogas
EnviTec Biogas AG is a plant manufacturer specialized in the entire value chain of biogas production, headquartered in Lohne (Lower Saxony). The company plans, manufactures and erects biogas plants for the agricultural and waste-to-energy segments as well as EnviThan gas upgrading plants with membrane technology for biomethane production. Manufacturing is based on a modular building block system with standardized components; the EnviThan containers are produced at the Saerbeck site in an 1,800 m² production hall with twelve production slots. Feedstocks used include liquid, solid, semi-solid and fibrous biomass such as slurry, solid manure, corn silage, poultry manure as well as organic residual materials from agriculture and industry. In addition to plant construction, EnviTec operates 87 of its own biogas plants and produces bio-LNG as well as bio-LCO2; around 699 employees work for the listed group; customers come from agriculture, renewable energies, industry and the transport sector.
- Site
- Lohne
- Processes
- Biogas plants (planning, construction, commissioning), EnviThan gas upgrading plants (membrane gas upgrading), Biomethane upgrading with CO2 liquefaction (bio-LNG/bio-LCO2), Hygiene treatment of feedstocks, Maintenance and technical service of biogas plants, Biological service (substrate and digestate analysis), Tank/vessel construction (EnviTec Greten Behälterbau), Safety inspections according to BImSchG §29a, Ex inspections
- Materials
- Biomass (liquid, solid, semi-solid and fibrous feedstocks), Slurry, Solid manure, Organic residues, Biomass residual materials (agricultural and industrial), Poultry manure, Corn silage, Raw biogas
- Certificates
- Analyses according to DIN/BGK standards, BImSchG §29a safety inspections, Ex inspections (BetrSichV)
- Founded
- 2002
- Employees
- 699
- Industries
- Agriculture, Renewable Energies, Waste-to-Energy, Industry, Transport/Logistics (bio-LNG), Beverage industry (bio-LCO2)
- 01
Project planning and engineering
- 02
Manufacturing of EnviThan containers (Saerbeck)
- 03
Plant construction and installation
- 04
Commissioning
- 05
Technical and biological service
- 06
Energy marketing and own plant operation
Feedstocks and Processes
Liquid, solid, semi-solid and fibrous feedstocks
Base material for biogas production in agricultural and industrial plants.
Slurry and solid manure
Agricultural feedstocks including hygiene treatment before digestion.
Corn silage and poultry manure
Typical substrates for energy-crop-based biogas plants.
Organic residues and biomass residual materials
Industrial and agricultural residual materials for waste-to-energy plants with flexible acceptance technology.
Raw biogas
Starting material for EnviThan membrane gas upgrading to biomethane.
Sites
Lohne
DECentral office/Headquarters (Administration)
- In-house laboratory (77 m³)
- Spare parts warehouse

Saerbeck
DESales/Production of EnviThan containers
- Lot size
- 12 production slots
- Materials
- Steel components for containers and membrane module systems
- Production hall 1,800 m²
- 2,100 m² usable floor space on a 5,000 m² plot

Calbe/Saale
DEWarehouse service (spare parts)
- 160 m² large-parts warehouse
- approx. 80 m² small-parts warehouse
- Repair unit for pumps and agitators
Friedland
DESite (spare parts warehouse)

Güstrow
DEBioEnergy Park Güstrow (bio-LNG plant, own operation)
- Bio-LNG plant incl. CO2 liquefaction (>50 Mio. € investment)
- CO2 liquefaction plant

Forst
DEOwn-operated biomethane upgrading plant with CO2 liquefaction
- Materials
- Slurry, solid manure, corn silage, poultry manure
- EnviThan gas upgrading (1,400 Nm³/h)
- Bio-LCO2 liquefaction (approx. 16,000 t/a)
- Biomethane CHP 600 kW
- PV system 750 kWp
Rugeley
UKSubsidiary EnviTec Biogas Service UK Ltd (service & spare parts)
Plants and Products






Inside the production





Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Biogas plants (planning, construction, commissioning)Engineering | – | – | – | – | – |
| EnviThan gas upgrading plants (membrane gas upgrading)Engineering | – | – | – | – | – |
| Biomethane upgrading with CO2 liquefaction (bio-LNG/bio-LCO2)Engineering | – | – | – | – | – |
| Hygiene treatment of feedstocksEngineering | – | – | – | – | – |
| Maintenance and technical service of biogas plantsAssembly | – | – | – | – | – |
| Biological service (substrate and digestate analysis)Testing | – | – | – | – | – |
| Tank/vessel construction (EnviTec Greten Behälterbau)Casting | – | – | – | – | – |
| Safety inspections according to BImSchG §29a, Ex inspectionsTesting | – | – | – | – | – |
| Repowering and plant optimizationEngineering | – | – | – | – | – |
| Manufacture of EnviThan containers (gas upgrading, oxygen generation, gas feed-in)Assembly | – | – | – | – | – |
30 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| EnviThan gas upgrading plant (membrane multi-stage) | EnviTec EnviThan | – | Biomethane e.g. 402-566 Nm³/h, 440 Nm³/h, 449 Nm³/h, 735 Nm³/h depending on plant | – | – |
| CHP units (GE Jenbacher CHP series 3 and 4) | GE Jenbacher BR 3/4 | – | – | – | – |
| CHP units | 2G Energietechnik | – | – | – | – |
| Membrane modules (SEPURAN Green) | Evonik SEPURAN Green | – | – | – | – |
| Pumps (spare parts/maintenance) | Vogelsang | – | – | – | – |
| Pumps (spare parts/maintenance) | Börger | – | – | – | – |
| Pumps (spare parts/maintenance) | Netzsch | – | – | – | – |
| Pumps (spare parts/maintenance) | Seepex | – | – | – | – |
| Pumps/agitators (spare parts) | Niemann | – | – | – | – |
| Pumps (spare parts) | Xylem | – | – | – | – |
| Measuring/analysis technology (spare parts) | E&H | – | – | – | – |
| Measuring/analysis technology (spare parts) | Vega | – | – | – | – |
| Separator/fittings components | – | – | – | – | – |
| Production hall for EnviThan containers | EnviTec | 1 | 1,800 m² production hall, 12 production slots, site 5,000 m² | 2023 | Saerbeck |
| Spare parts warehouse | EnviTec | 1 | 160 m² large parts, approx. 80 m² small parts | – | Calbe/Saale |
| Spare parts warehouse | EnviTec | – | – | – | Lohne; Friedland; Rugeley (UK) |
| In-house laboratory (77 m³) | EnviTec | 1 | 77 m³ | – | Lohne |
| CO2 liquefaction plant (bio-LNG incl. CO2 liquefaction) | EnviTec BioEnergy Park Güstrow | 1 | – | 2023 | Güstrow |
| Biomethane plant with CO2 liquefaction | EnviTec | 1 | 735 Nm³/h, approx. 24 t bio-LCO2/day | – | Belgium |
| Gas upgrading with CO2 liquefaction | EnviTec Forst | 1 | 1,400 Nm³/h biomethane, approx. 16,000 t/a bio-LCO2 | 2014 | Forst (Lausitz) |
| Photovoltaic system (750 kWp) | – | 1 | – | – | Forst |
| Biomethane CHP (600 kW) | – | 1 | – | – | Forst |
| Photovoltaic park (65 MW) | – | 1 | 47 ha, 101,712 PV modules (Wuschewier) | – | Buckow/Petkus, Brandenburg |
| Photovoltaic park (150 MW, developed) | – | 1 | 132 ha | – | Märkisch-Oderland, Brandenburg |
| EnviThan gas upgrading plant | EnviTec | 1 | 449 Nm³/h biomethane | 2025 | Bierovce, Slovakia |
| EnviThan gas upgrading plant | EnviTec | 1 | 440 Nm³/h, feed-in at 16 bar | 2021 | Gauchy, France |
| EnviThan gas upgrading plant | EnviTec | 1 | 402 Nm³/h (expandable to 566 Nm³/h) | 2024 | Vårgårda-Herrljunga, Sweden |
| Biogas plant | EnviTec | 87 | – | – | own plant operations |
| Biogas plant (industrial, with gas upgrading) | EnviTec | 1 | 440 Nm³/h, 4.7 ha site, 15 m high technology building (~1,000 m²) | 2021 | Gauchy, France |
| Biogas plant | EnviTec | 1 | – | 2011 | Saerbeck Bioenergy Park |
Additional services
Reference customers
Quality and Testing
Biological process control is carried out via an in-house laboratory in Lohne (77 m³) with substrate, fermenter and digestate analyses; service follows standardized methods according to DIN and BGK standards. Safety inspections according to BImSchG §29a and Ex inspections are performed by in-house experts.
| Evidence | Lohne |
|---|---|
| Analyses according to DIN/BGK standards | |
| BImSchG §29a safety inspections | |
| Ex inspections (BetrSichV) |
Company History
- 2002
Foundation of EnviTec Biogas GmbH by Olaf von Lehmden, Kunibert Ruhe and Tobias Schulz
- 2003
Construction of the first biogas plant
- 2005
First order from abroad; foundation of EnviTec South East Europe and EnviTec Italia
- 2006
Foundation of EnviTec Central Europe; foundation of EnviTec Biogas (India) Pvt. Ltd. in Bangalore
- 2007
IPO on 12.07.2007 (Frankfurt, 47 € issue price); foundation of EnviTec Biogas UK and EnviTec Nederland
- 2011
Takeover of the Güstrow plant (commissioned 2009, largest biogas plant built by EnviTec in Germany); portfolio expanded to include direct marketing and heat supply
- 2013
Migration of the share to the Entry Standard
- 2014
Commissioning of the Forst biogas plant (biomethane with bio-LCO2 liquefaction, approx. 130,000 MWh/a)
- 2017
Purchase of an agricultural business in Brandenburg with 132 ha of PV land
- 2021
Commissioning of Gauchy/France (440 Nm³/h, feed-in to GRDF); takeover of the Güstrow plant into own operation
- 2022
Orders in the USA; sixth and seventh biogas plants in China; investment program
- 2023
New 1,800 m² production hall in Saerbeck (capacity doubled); start of trial operation of the bio-LNG plant Güstrow (>50 Mio. € investment)
- 2024
Market entry in Sweden (EnviThan, 402 Nm³/h); second solar park Buckow (65 MW, acceptance by PowerCo SE); change of leadership in plant construction
- 2025
First gas upgrading plant in Slovakia (Bierovce, 449 Nm³/h); biomethane project Belgium (Byont, 735 Nm³/h); foundation of EnviTec Wind|Solar GmbH & Co. KG; Energy Vision Leadership Award New York; takeover of LIQVIS (Uniper subsidiary, LNG filling stations)
- 2026
H1: Total output 182.9 Mio. €, revenue 169.2 Mio. €, EBITDA 21.4 Mio. €