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5th Generation District Heating and Cooling (5GDHC) networks are becoming an attractive option for decarbonizing heating and cooling of residential buildings. They typically rely on ground source heat pumps to provide the bulk of the energy. Solar energy could supplement the energy from the ground. In this study two solar-assisted networks will be compared, namely, Solar Water Heaters (SWH) and Photovoltaic-Thermal (PVT) panels. To facilitate this, a dynamic model is developed in TRNSYS. The model is applied to a residential district in Peterhead, Scotland. Heat dissipation and electricity consumption are compared between the two models. It is found that SWH-equipped system has reduced reliance on the heat from the network. However, it suffered from greater energy loss compared with PVT-equipped model. It also has greater electrical energy consumption during warmer seasons. The PVT system provided around 13% of the total electricity consumption on an annual basis. It is demonstrated that choosing the appropriate technology and size is case-dependent.

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A Novel Topology Integrating Solar Technologies with the 5th Generation District Heating and Cooling (5GDHC) Network at the Load Side

  • 会议论文

  • 发表日期：

    2025年

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  • Shamsoddin Ghiami,
  • Fadi Kahwash,
  • Nazmi Sellami,
  • Dylan Ryan

摘要

5th Generation District Heating and Cooling (5GDHC) networks are becoming an attractive option for decarbonizing heating and cooling of residential buildings. They typically rely on ground source heat pumps to provide the bulk of the energy. Solar energy could supplement the energy from the ground. In this study two solar-assisted networks will be compared, namely, Solar Water Heaters (SWH) and Photovoltaic-Thermal (PVT) panels. To facilitate this, a dynamic model is developed in TRNSYS. The model is applied to a residential district in Peterhead, Scotland. Heat dissipation and electricity consumption are compared between the two models. It is found that SWH-equipped system has reduced reliance on the heat from the network. However, it suffered from greater energy loss compared with PVT-equipped model. It also has greater electrical energy consumption during warmer seasons. The PVT system provided around 13% of the total electricity consumption on an annual basis. It is demonstrated that choosing the appropriate technology and size is case-dependent.