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Yearly Electrical Energy Assessment of a Photovoltaic Platform/Geothermal Heat Pump Prosumer

Author

Listed:
  • Macedon Moldovan

    (Renewable Energy Systems and Recycling Research Centre, Transilvania University of Brasov, 500036 Brașov, Romania)

  • Bogdan-Gabriel Burduhos

    (Renewable Energy Systems and Recycling Research Centre, Transilvania University of Brasov, 500036 Brașov, Romania)

  • Ion Visa

    (Renewable Energy Systems and Recycling Research Centre, Transilvania University of Brasov, 500036 Brașov, Romania)

Abstract

Romania introduced in 2018 an amendment to the national law 220/2008 by including the Prosumer concept that allows investors in grid-connected photovoltaic systems with a capacity up to 27 kWp to receive a feed in tariff for the electricity delivered to the grid representing approximatively one third of the price paid when the electricity is consumed from the grid. Thus, the challenge is to use as much as possible the photovoltaic power when it is produced. A methodology is developed to evaluate how much of the electrical energy output of a grid-connected photovoltaic platform is used by a geothermal heat pump for space heating in a building. A numerical simulation is performed in Trnsys17 based on locally measured meteorological parameters over a period of one entire year. A case study is presented for which the characteristics of the building, of the heat pump system and of the photovoltaic system are described and integrated into the transient simulation environment. The numerical results are comparatively presented and discussed along with experimental data for sunny days in cold season. For the analysed case study, the self-consumption is 16%, significantly lower than the yearly coverage degree of 70%. Further research can be done to increase the self-consumption.

Suggested Citation

  • Macedon Moldovan & Bogdan-Gabriel Burduhos & Ion Visa, 2021. "Yearly Electrical Energy Assessment of a Photovoltaic Platform/Geothermal Heat Pump Prosumer," Energies, MDPI, vol. 14(13), pages 1-18, June.
    • Handle: RePEc:gam:jeners:v:14:y:2021:i:13:p:3776-:d:580799
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    References listed on IDEAS

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    1. Macedon Moldovan & Bogdan Gabriel Burduhos & Ion Visa, 2023. "Efficiency Assessment of Five Types of Photovoltaic Modules Installed on a Fixed and on a Dual-Axis Solar-Tracked Platform," Energies, MDPI, vol. 16(3), pages 1-21, January.

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