CHP stands for "combined heat and power". This means that CHP systems not only generate heat from an energy source - as is the case with conventional combustion in boilers - but also electricity at the same time. This makes the systems particularly efficient.

Synthesis gas, or syngas for short, is a gas mixture consisting mainly of carbon monoxide (CO) and hydrogen (H₂) that is produced in our energy plants from waste or biomass. If only wood chips are used in the system, it is also known as wood gas. The gas can, for example, be converted into electricity + heat in a combined heat and power plant or the syngas can be used as a substitute for natural gas in a burner.

Biomass power plants from Re² use a thermochemical process to generate electricity and heat from wood waste or residual materials in a decentralized and demand-oriented manner. The Re² systems consist of a wood gasifier and a combined heat and power unit. The central step takes place in the reformer: In a thermochemical process, in the reformer, direct current operation converts the fuel into a particularly clean natural gas. About one generator creates electricity from it. Energy is also generated in the form of heat. Alternatively, the gas can also be used directly – e.g. for other industrial processes.

Re² energy systems enable sustainable and climate-friendly energy production.
The technology is CO₂-neutral when using waste wood from sawmills or thinnings as fuel. As this biomass is already bound in the natural carbon cycle, there are no additional CO₂ emissions.

The technology becomes CO₂-negative when the carbon produced in the process is sequestered, for example by embedding it in concrete or asphalt. This permanently binds the carbon and removes CO₂ from the atmosphere over the long term.

Our technology also works well with short rotation coppice or agroforestry systems. These sustainable concepts allow wood to grow back in a targeted manner, enabling a carbon neutral to carbon positive circular economy that not only sequesters CO₂, but is also economically attractive.

Many of our customers have system running times of over 8,500 hours per year. However, operation with shorter running times is also economical and easily possible with our flexible systems.

CHP systems from Re² are available in a power range from 35 kW electric (79.5 kW heat) to several megawatts electric. The modular design of the systems enables maximum flexibility and reliability. This means that the systems can easily handle partial loads and maintenance work can be carried out in parallel - a major advantage over a single large-scale CHP system, which, in contrast to the Re² systems, cannot guarantee a continuous energy supply during necessary service work.

Our syngas can be used as an alternative to fossil natural gas in industrial processes. Our syngas plants produce syngas in a range of capacities from 500 kW to 10 MW of gas.

Yes, a 1 megawatt wood gas project, for example, can easily provide between 0 and 1 MW of power, depending on your current energy demand. The energy systems can be shut down completely, but also run efficiently and stably at partial load. This gives you maximum flexibility and ensures that energy is always generated according to demand.

Replacing a 1 Megawatt diesel genset with a Spanner Re² energy system can save over 50% in operating costs. In addition, depending on the level of automation of the system, there is the potential to create between 7 and 20 jobs in the region, particularly in the areas of fuel procurement, logistics and maintenance. A conventional 1 Megawatt diesel genset requires around 2 million litres of diesel per year for 8,000 hours of operation, resulting in significant running costs. The investment in a Re² energy system can therefore be recouped in just a few years, creating a local, sustainable value chain instead of diverting capital for imported fuel.

With our hybrid solution for an existing diesel genset, over 26 liters of diesel are saved per operating hour with a gas output of 210 kW. This requires 50 kg of wood. If the maintenance costs for the wood gasifier are also taken into account, over €15 is saved per operating hour, which is over €60,000 per year for 4,000 operating hours! In the case of our diesel-wood gas hybrid system as a complete solution, this even amounts to over 240,000 euros per year, assuming a running time of 4,000 hours.

Almost any type of wood or wood waste can be used as fuel: whether forest wood chips, residual forest wood, shredded pallets or processed roadside greenery. Our systems do not require high-quality timber. Biomass power plants from Re² operates with residue materials (in accordance with DIN ISO 17225-1) for energy prdouction. This means that our plants are not in competition with high-quality wood that is intended for material use. On the contrary, they optimally round off the value chain: when wood is processed and used as a building material, for example, residual material is produced that has no material use. In our plants, this residual material can be used to generate energy. Waste wood can also be used profitably in our plants, as can residual materials from industrial processing. This includes, for example, high-calorific plastic waste. The wide range of possible fuels makes Re² gasifiers and CHP plants particularly flexible and sustainable in practice.

The electricity generated by a Re² biomass power plant can also be used by the customers themselves. This also makes it possible to charge electric cars with your own electricity.

Yes, our systems are extremely flexible not only in terms of power range and choice of input materials, but also in combination with other (renewable) energy generators and battery storage systems.

This means that our system can be operated flexibly in terms of power output, or completely shut down if required. This allows for optimal adaptation to energy demand and is an ideal complement to renewable energy sources such as photovoltaics and battery storage.

Biomass power plants from Re² generate electricity and heat regardless of the weather. Our technology is the ideal partner in the mix with other renewable energies. The decentralized energy system from Re² can cover the required base load or take over energy generation at night. When the sun shines, electricity can be generated via PV.
Thanks to its modular design, the wood gasifier technology is very flexible in terms of output. It is also the only renewable energy system that can supply energy at the touch of a button - regardless of weather conditions.