
Manufacturer of wood-gasifier CHP systems for decentralized generation of electricity, heat and syngas from biomass and residual materials
Spanner Re² GmbH
Neufahrn i. NB (headquarters & production plant) · Reference projects in Austria, Switzerland, Slovenia, South Tyrol and JapanNew on Amplifa
About Spanner Re²
Spanner Re² GmbH develops and manufactures wood-gasifier combined heat and power (CHP) systems in Neufahrn in Lower Bavaria, with which wood chips, pellets and biogenic residual materials such as forest residue wood, sawmill by-products, waste wood, roadside greenery, nut shells or plastic waste are used to generate decentralized electricity, heat or synthesis gas. At the core of the wood gasifier, a clean wood gas is produced in the reformer via a thermochemical co-current process, which is converted into electricity in a downstream CHP unit or used directly as a natural gas substitute in industrial thermal processes. The modular portfolio includes systems from 35 kWel (HKA 35) to several megawatts (HKA 300, HKA 700), pellet gasifiers, the EnergyBlock container solution, fully automatic fuel dryers as well as conveying and discharge technology – all from a single source. In addition, the company has been manufacturing pellet heating boilers from 4 to 100 kW thermal for over 20 years, overhauls used systems with a complete refurbishment, and offers output-class upgrades, maintenance, remote monitoring, contracting and profitability calculations. More than 1,100 systems are in operation worldwide, including at sawmills, hotels, farms, heating power plants and industrial companies such as the MVO dairy or the metal construction company Eirenschmalz.
- Site
- Neufahrn i. NB
- Processes
- Wood gasification (thermochemical conversion of wood chips/pellets into synthesis gas/wood gas in, Combined heat and power (CHP): electricity and heat generation from wood gas via CHP unit, Direct gas use: synthesis gas (wood gas) as a natural gas substitute in industrial thermal processes, Fuel drying (fully automatic wood chip dryers, bunker drying, moving-floor dryers,, Pellet heating boiler manufacturing (heating with pellets from 4 to 100 kW thermal), Manufacture of conveying and discharge technology as well as peripherals for wood gasifier systems, Complete overhaul/repowering of wood gasifiers and CHP units (used systems, upgrade to higher, Complete energy solutions including conveying and discharge technology
- Materials
- Wood chips, Pellets, Forest residue wood & pest-damaged wood, Sawmill by-products, Waste wood, chipboard & MDF residues, Roadside greenery, Nut shells & husks, Plastic waste
- Certificates
- Remote monitoring, Factory customer service & spare parts supply, Complete overhaul of used systems
- Founded
- 2004
- Industries
- Sawmills/wood processing, Agriculture, Hotels/wellness hotels, Municipalities/district heating networks, Industry/process heat (plastics, metal processing, brickworks, dairies), Biogas upgrading
- 01
Engineering & project planning
- 02
Manufacture of the wood gasifiers (reformer, peripherals)
- 03
Manufacture of conveying and discharge technology
- 04
Fuel drying / dryer manufacturing
- 05
Assembly & commissioning
- 06
Remote monitoring
- 07
Maintenance, service & spare parts
- 08
Repowering / complete overhaul of used systems
Fuels & Processes
Wood chips
Standard fuel according to DIN ISO 17225-1 (P31 S, M10) for the standard HKA systems.
Pellets
Fuel for the HKA Pellet series and HKA 70 Prozess (EN plus A1).
Forest residue wood & pest-damaged wood
Can be processed as a residual material for decentralized energy generation.
Sawmill by-products
Gasified by sawmills and converted into electricity and process heat.
Waste wood, chipboard & MDF residues
Permitted residual materials for maximum fuel flexibility of the systems.
Roadside greenery
Processed as an input material in heating power plant operation.
Nut shells & husks
Biogenic residual materials that are utilized energetically.
Plastic waste
High-calorific waste materials, successfully tested in gasifier operation.
Locations

Neufahrn i. NB
DEHeadquarters & production plant
- Materials
- Wood chips, pellets, biogenic residual materials
- HKA 35–HKA 700 wood gasifier series production
- HKA Pellet series
- EnergyBlock (40-foot container)
- Pellet heating boilers 4–100 kW
- Moving-floor dryer 6SBT-5
Systems & Components

Inside the production

Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Wood gasification (thermochemical conversion of wood chips/pellets into synthesis gas/wood gas inEngineering | – | – | – | – | Wood chips, Pellets, Forest residue wood, Sawmill by-products, Waste wood, Thinning/pest-damaged wood, Roadside greenery, Nut shells, Husks, Plastic waste, Chipboard/MDF residues |
| Combined heat and power (CHP): electricity and heat generation from wood gas via CHP unitEngineering | – | – | – | – | Wood chips, Pellets |
| Direct gas use: synthesis gas (wood gas) as a natural gas substitute in industrial thermal processesEngineering | – | – | – | – | Wood chips, Residual materials, Biomass |
| Fuel drying (fully automatic wood chip dryers, bunker drying, moving-floor dryers,Engineering | – | – | – | – | Wood chips |
| Pellet heating boiler manufacturing (heating with pellets from 4 to 100 kW thermal)Engineering | – | – | – | – | Pellets |
| Manufacture of conveying and discharge technology as well as peripherals for wood gasifier systemsEngineering | – | – | – | – | – |
| Complete overhaul/repowering of wood gasifiers and CHP units (used systems, upgrade to higherAssembly | – | – | – | – | – |
14 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Wood gasifier CHP system HKA 35 | Spanner Re² HKA 35 | – | 35 kW el / 79.5 kW th, scalable | – | Neufahrn i. NB |
| Wood gasifier CHP system HKA 50 | Spanner Re² HKA 50 | – | 49 kW el / 106 kW th, scalable | – | Neufahrn i. NB |
| Wood gasifier CHP system HKA 70 | Spanner Re² HKA 70 | – | 68 kW el / 144 kW th, scalable | – | Neufahrn i. NB |
| Wood gasifier for process heat HKA 70 Prozess | Spanner Re² HKA 70 Prozess | – | 63 kW el / 154.3 kW th, scalable | – | Neufahrn i. NB |
| Wood gas power plant HKA 300 / HKA 300 PRO | Spanner Re² HKA 300 / HKA 300 PRO | – | 285 / 325 kW el (PRO), 567 / 479 kW th (PRO), scalable | – | Neufahrn i. NB |
| Wood gas power plant HKA 700 | Spanner Re² HKA 700 | – | 650 kW el / 872 kW th, scalable | – | Neufahrn i. NB |
| Pellet gasifier HKA Pellet series | Spanner Re² HKA Pellet | – | approx. 50-300 kW el / approx. 100-560 kW th, fuel pellets | – | Neufahrn i. NB |
| EnergyBlock container solution (40-foot container with installed system technology, multi-storey | Spanner Re² EnergyBlock | – | e.g. 3-fold EnergyBlock 150 kW el; Re² EnergyBlock ~650 kW el | – | Neufahrn i. NB |
| CHP unit Jenbacher JMS 320 GS-SL with Dia.ne XT generator | GE Jenbacher JMS 320 GS-SL | – | 560 kW el | 2008 | Neufahrn i. NB |
| Wood gasifier HV 70 (NEW, in the Jenbacher complete package) | Spanner Re² HV 70 | 8 | – | – | – |
| CHP unit MOTHERMIK MTHG CNM 265 (dual-fuel engine IVECO 8291 SRM 75 / V12 biturbocharger) | MOTHERMIK MTHG CNM 265 | – | 250 kW el | 2006 | Neufahrn i. NB |
| Moving-floor dryer | Spanner Re² 6SBT-5 | – | – | – | – |
| Flue gas heat exchanger incl. cleaning unit (heat recovery up to approx. 10 kW) | Bomat Profitherm | – | up to approx. 10 kW | – | – |
| Pellet heating boiler | Spanner Re² | – | 4 to 100 kW thermal | – | Neufahrn i. NB |
Additional services
Reference customers
Quality
The systems are manufactured in series, built modularly and monitored via remote monitoring; the factory customer service and a broad service and spare parts network ensure availability and maintenance.
| Evidence | Neufahrn i. NB |
|---|---|
| Remote monitoring | |
| Factory customer service & spare parts supply | |
| Complete overhaul of used systems |
History
- 2004
Foundation of Spanner Re² GmbH (production of systems according to E&M report since 2007).
- 2012
Kommunalservice Lang and sawmill Klein commission the first HKA systems.
- 2014
Reference projects at sawmill Christl, sawmill Hagedorn and Hotel Taljörgele.
- 2020
Kirchschlag heating power plant: five HKA 70 systems commissioned.
- 2022
Eirenschmalz: five HKA 70 systems installed; inquiry from the MVO dairy.
- 2023
Kirchschlag expands to six systems (>400 kWel); sawmill Hagedorn expands; MVO system delivered.
- 2024
MVO project receives the title 'CHP of the Month' (Energie & Management, July 2024).
- 2025
Biomasa (Slovenia) expands with HKA 300 and HKA 600 (~1 MWel / 2 MWth).
- 2026
Eirenschmalz receives the Bavarian Energy Prize.