The investigation created the prerequisites for a heating system dimensioned according to requirements. For example, the required heat output of the new system could be reduced from 6,000 to 4,000 kW initially. Compared to the existing heat supply contract, annual savings of more than 100,000 € were possible.
Conception, planning, project management and control for the biomass ORC cogeneration plant and a wood pelleting plant were carried out entirely by eta Energieberatung, Pfaffenhofen.
The conception, planning, project management and control of the 3 ORC combined heat and power plants in Heidegrund, Oranienbaum and Löbau, with pelleting including machining, was carried out by eta Energieberatung in Pfaffenhofen.
Different variants for the renovation of the heat supply/distribution system were developed and compared with each other. In addition, an estimation of the use of CHP plants was made. The following recommendations, among others, could be derived: Decoupling the main workshop from the 2.5 bar heat supply and conversion to condensate heat utilisation.
In the Fuggerei Augsburg, the oldest social settlement in the world, 150 people live in the 140 apartments of the 67 houses. The aim of the administration of the Fürstlich und Gräflich Fugger Foundation was to establish a maintenance-free, economically and ecologically sustainable heat supply for the listed building ensemble.
A local heating network in the historic old town centre of Weißenstadt is being built in several construction phases. For the newly built heating plant, a previously empty grain warehouse, was renovated and thus put to a new use.
eta Energieberatung, Pfaffenhofen received the order from WUN Bioenergie GmbH for the conception and planning of a biomass ORC cogeneration plant and a wood pelleting plant. After a construction period of only 9 months the combined heat and power plant has been put into operation.
At the power plant site, a waste incineration line was converted to biomass operation (wood combustion). The entire conception and planning of the biomass cogeneration plant was carried out by eta Energieberatung.
The technical feasibility and economic efficiency of different variants of CHP (combined heat and power) and CHP (combined heat, power and cooling) were examined. An economic alternative is also a micro gas turbine for air preheating.
Through eta Energieberatung a sustainable concept for a secure procurement of fuel assortments was developed and a regional market overview was created. In addition, a profitability analysis and a sustainability assessment was carried out.
The new concept envisages using a heat pump to raise the temperature level of the low-temperature waste heat generated in the condensation power plant. The waste heat can then be integrated into the production process in combination with a CHP plant and a pre-dryer. This results in annual energy cost savings of approx. 1 million €.
By implementing an innovative steam generation system using CHP, consisting of a conventional steam boiler with micro gas turbine and gas turbine exhaust gas burner, renewal of the steam distribution system with a pure steam generator and a new ventilation system to supply highly hygienic areas, CO2 emissions were reduced by almost 20 %.
The community Wunsiedel will become a pellet stronghold through the investment of 30 million euros in the new pellet plant with a connected CHP. The new pellet plant is supplied with the necessary energy by three connected natural gas CHPs.
It was analyzed how the location can be supplied with energy in a CO2-neutral manner. For efficient energy generation and optimal use of fuel with biogas cogeneration units, the heat supply had to be split into a separate high and low temperature supply.
After successful cooperation with the wood pellet plant, the Stadtwerke Wunsiedel also relied on the technical support of eta Energieberatung for this local heating concept with a wood gas cogeneration unit and pellet boilers.