Seinäjoen Energia was planning to utilise waste heat from a data centre as part of its district heating system and needed an independent expert opinion to assess the project’s technical and economic solutions. The aim was to ensure the quality of the design, the reliability of the calculations and a sound basis for the profitability of the investment. 

Sitowise carried out an independent expert assessment and quality review for the project. The work examined the underlying assumptions used in the energy system’s profitability calculations, the heat pump’s operating points, temperature levels, the annual average COP, and their impact on the system’s performance and economic viability. In addition, monthly verification calculations were prepared to assess the technical credibility of the calculations and the consistency of the results. 

Based on the assessment, the previous profitability calculations were found to be technically consistent. The work identified the key factors affecting profitability, including the temperature levels of the heat source and district heating network, the efficiency of the heat pump, and the price ratios between electricity and the energy sources being replaced. Sitowise also provided recommendations for the further development of the system, optimisation of the energy system and improved flexibility, for example through the use of thermal energy storage. 

The independent expert assessment provided the client with a reliable basis for evaluating the plans, supporting investment decisions and guiding the project’s further development. Sitowise’s extensive expertise in data centre implementation design, combined with its strong expertise in data centre waste heat utilisation, heat pump solutions and the optimisation of district heating systems, helped ensure a technically and economically sustainable overall solution. 

  • Customer:
    Seinäjoen Energia Oy
  • Date of implementation:
    2026

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