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Sustainable bioenergy solution for tomorrow

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J. Lassila
added 2 research items
In a large-scale integration of distributed generation (DG), a hosting capacity reflects the technical limit for the adaption. Hosting capacity depends strongly on the existing electricity infrastructure and a profile of electricity demand of end-customers. Hosting capacity and economic feasibility of large-scale integration of PV relate strongly to each other. The target of the study is to illustrate what are the limits and possibilities for the large-scale solar PV integration in Finland from the electricity distribution infrastructure perspective. The study utilizes a nationwide database of buildings and roof surface areas, a case specific network data from actual distribution areas and nationwide statistics of distribution system operators. Hourly-based load and generation data are used considering geographical location and point of compass of individual buildings. The study shows that there is significant residential rooftop solar PV capacity available according to the building and electricity infrastructure information. The main outcome is that implementing this amount of solar PV in residential level does not bring significant challenges for electricity distribution system.
Juha Haakana
added a research item
This paper considers opportunities of bioenergy-based combined heat and power (CHP) to balance fluctuation in solar and wind power. The paper studies participation of CHP production in an electrical power reserve, which provides opportunities to integrate more renewable energy production into the electrical system and also makes it possible to raise the profit of the CHP operator. Moreover, the paper discusses certain aspects of integrating heat pumps (HPs) with a CHP plant and participation of their combination CHP in electricity reserve power markets.