Technology benefits

  • Due to its virtually constant temperature, wastewater heat is one of the most efficient energy sources for a heat pump-based heating/cooling system
  • Using heat pump-based systems saves energy
  • It is a closed system, therefore, it does not produce any smell in the environment or any hazardous waste on the site
  • It can be used in both winter and summer
  • The heat exchanger is installed outside the sewage line in a concrete structure where it can be managed and maintained under constant technical conditions
  • You can utilize the heat right next to the sewage line or at a larger distance
  • The various technology components (sewage chamber, heat exchangers, pump) can be located at the same place or at a larger distance from one another
  • They can be installed either above the ground or below the ground
  • It is an ideal solution especially in large cities with over 200,000 residents
  • As the technology can be installed below the ground, it can be used in densely populated areas, and not only in outskirts (as is the case with wind, solar etc. power plants)
  • It can be implemented in as short as 6 months
  • The technology has a useful life of at least 15 years, and some components can renewed or replaced over time
  • The technology is supported with an established maintenance methodology and cycle including a control computer sending alerts on the actions to be taken (as part of remote management)
  • This method doesn’t alter the composition of wastewater (adds nothing and removes nothing) only changes its temperature
  • Filtering is essentially a mechanical process with a minimum energy requirement
  • Operation is managed by software
  • Operation can be managed remotely from a site at any distance from the facility
  • The technology can be integrated into an existing heating facility or can be established as part of a greenfield project
  • The construction and operation of the system can be done separately which means that customers can use a local contractor for construction and installation and use Thermowatt for centralised remote management
  • Capital expenditure: Establishing a heating and cooling system capable of producing 1 MW of heat costs about EUR 1 million. (The cost of setting up conventional energy capacities is about two-thirds of this amount. That is, the capital expense of a greenfield project is about one-third higher than that of a conventional power plant.)
  • The technology can be ideally used in inner city areas 

Bisnode is well-known for providing up-to-date and reliable information on companies all over Europe. In Sweden, Bisnode controls the world's first credit-evaluation system for companies, launched in 1989. In 2014 Bisnode qualified THERMOWATT Ltd. as a creditworthy company.