April 11, 2024
Source: Energie & Management Powernews
Kelheim expands heat supply with buffer storage
In order to reduce its dependence on fossil fuels, Stadtwerke Kelheim has now added a buffer storage tank to its biomass cogeneration plant.
The aim of the expansion is to achieve a more efficient heat supply for consumers with renewable energies, according to a statement from the supplier. Sabine Melbig, Managing Director of Stadtwerke Kelheim, explained: "In addition to the increased demand from our customers for district heating, the issue of sustainability also plays a key role for us." We have to use natural resources responsibly.
As part of the combined heat and power plant, the 20-metre-high buffer storage tank serves to compensate for time differences between the generation and consumption of heat. According to Stadtwerke, this allows for a certain smoothing of peak loads during the day, especially in the morning hours. The proportion of fossil fuels is thus reduced and the proportion of biomass increases. With a usable thermal volume of 200,000 liters of heating water, the operation of the buffer storage tank results in an annual CO2 saving of 62 tons, according to calculations by Stadtwerke Kelheim.
The biomass cogeneration plant of Stadtwerke Kelheim went into operation in 2011. Heat and electricity are generated from natural regional wood chips. The boiler has a thermal firing capacity of 3,800 kW. The electrical output of the ORC turbine is 600 kW. Stadtwerke supplies 73 buildings with its district heating network and the heat pipe is around 10 kilometers long.
Author: Günter Drewnitzky
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