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Day-ahead optimal scheduling considering thermal and electrical energy management in smart homes with photovoltaic–thermal systems

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  • Fiorotti, Rodrigo
  • Fardin, Jussara F.
  • Rocha, Helder R.O.
  • Rua, David
  • Lopes, João Abel Peças

Abstract

The environmental impact on the energy sector has become a significant concern, necessitating the implementation of Home Energy Management Systems (HEMS) to enhance the energy efficiency of buildings, reduce costs and greenhouse gas emissions, and ensure user comfort. This paper presents a novel approach to provide optimal day-ahead energy management plans in smart homes with Photovoltaic/Thermal (PVT) systems, aiming to achieve a balance between energy cost and user comfort. This multi-objective problem employs the Non-dominated Sorting Genetic Algorithm III as the optimization algorithm and the Nonlinear Auto-regressive with External Input to forecast the day-ahead meteorological variables, which serve as inputs to predict the PVT electrical and heat production in the thermal resistance model. The HEMS benefits from the time-of-use tariff due to the flexibility provided by the energy storage from a battery bank and a boiler. Furthermore, it performs a load scheduling for 10 controllable loads based on three feature parameters to characterize occupant behavior. A study case analysis revealed a cost reduction of approximately 66% in the solution close to the knee of the Pareto curve (S3 solution). The environmental impact on the energy sector has become a The PVT heat production was sufficient to meet the thermal demand of the showers. The proposed hybrid battery management model effectively eliminated the export of electricity to the grid, reducing consumption during peak periods and the maximum peak demand.

Suggested Citation

  • Fiorotti, Rodrigo & Fardin, Jussara F. & Rocha, Helder R.O. & Rua, David & Lopes, João Abel Peças, 2024. "Day-ahead optimal scheduling considering thermal and electrical energy management in smart homes with photovoltaic–thermal systems," Applied Energy, Elsevier, vol. 374(C).
    • Handle: RePEc:eee:appene:v:374:y:2024:i:c:s0306261924014533
    DOI: 10.1016/j.apenergy.2024.124070
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    References listed on IDEAS

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