New paths for biogas plants
The energy sector is facing fundamental change. For operators of biogas plants, this means that tried-and-tested business models such as generating electricity and heat from biogas are becoming less attractive – subsidies are coming to an end and markets are changing. This makes it all the more important to develop new perspectives.
This is precisely where APESS GmbH came in and developed a forward-looking concept together with a partner: A new business model that focuses on the sale of biogas – supplemented by an intelligent, sustainable and efficient solution for supplying heat to the fermenters.
The challenge
Previously, the heat for the fermenters was obtained from the waste heat from electricity production – cost-effectively and efficiently. With the switch to biogas sales, this source is no longer available. The customer has clearly defined: No fossil fuels, no district heating – the solution must be based on heat pump technology.
The solution
We have developed a concept that not only meets the technical requirements, but also sets the course for a sustainable future:
- Highly efficient energy use and integration of waste heat
- Integration of modern heat pump technology for a heat output of around 300-400 kW
- Plug & play system: The complete technology is pre-assembled and delivered in a container
- Heat recovery from the organic digestate to further increase efficiency
- Implementation during ongoing operations, without interrupting production
YOUR ADVANTAGES
- Conserves resources thanks to highly efficient energy use and integration of waste heat
- Free from fossil fuels thanks to heat pump technology
- Flexible and future-proof – a concept that adapts to new market conditions
With this project, APESS GmbH is once again demonstrating how innovation and practical relevance work together: We understand processes, rethink business models and create solutions that actively shape the transformation of the energy sector.
Overview diagram of the system concept: outside air and internal waste heat are combined as heat sources. A two-stage cooling circuit supplies several temperature levels as required and increases efficiency by generating the required temperature level in a targeted manner. Splitting the low-temperature circuit improves efficiency in partial load operation. The direct integration of high-temperature waste heat is also possible.
Plug & Play: The pre-assembled heat pump enables compact, space-saving installation and reduces installation work and construction time on site. The complete I/O check before delivery shortens commissioning times and minimizes delays on the construction site. Delivery from a single source ensures clearly defined interfaces to adjacent trades.
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