Here is how the project works and how it benefits the city.
Using waste heat
In the next step, heat pumps in a district heating facility then raise the temperature of the water from 40 to 85°C. In this way, 75% of the energy originally used can be reused. This is not just very efficient, it also protects the environment.
In the first phase, the CO2 emissions will be reduced by 4,000 metric tons per year and, when the project has been completed, this will be up to 11,000 metric tons of CO2 every year. Calefa’s role in this is to enable the entire technical conversion of waste heat into useful heat.
Confidence due to past performance
“We chose compressors from BITZER because they have stood for high quality, reliability and good performance for decades,” said Vesa Tamminen, CEO of Calefa.
“That builds confidence where the long service life of the compressors is absolutely vital for us. We also know from experience that we can work together well with BITZER and can rely on their service. Our team have been successfully using BITZER compressors since 2007.”
Work has progressed well and the entire system will go into operation in October of this year. The heat recovery unit in the computing centre is already operational and can be connected to the heat pump system. The installation of the heat pumps started as soon as the building was finished in the middle of June. Early in June the work on the necessary pipework also begun.