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Economic premises for SOFC cogeneration in Finnish households.

Author(s) : ALANNE K., VESANEN T., KERÄNEN H., et al.

Summary

In this paper, the authors present the economic analysis of a solid-oxide fuel-cell (SOFC) micro-cogeneration plant in a single-family low-energy house in Finland. Here, they implement a new SOFC model in the dynamic building simulation software "IDA - Indoor Climate and Energy" to obtain a match between energy demand and supply. In their computational study, they first estimate the break-even values for both the buyback price of electricity and plant investment that make an SOFC plant financially viable in a comparison with a water-based gas boiler heating system without cogeneration. Second, they determine the sensitivity of break-even prices in terms of the electrical power, overall efficiency and two operational strategies. The results suggest that the optimal operation would encompass a constant run with electrical power no more than 1 kWe. In the above case, the break-even buyback price would remain less than 0.04 EUR kW/h, provided that the overall efficiency exceeds 80%.

Details

  • Original title: Economic premises for SOFC cogeneration in Finnish households.
  • Record ID : 2008-2771
  • Languages: English
  • Subject: General information
  • Source: Clima 2007. WellBeing Indoors. Proceedings of the 9th REHVA World Congress [CD-ROM + Abstract book].
  • Publication date: 2007/06/10

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