Assessing the Impact of Photovoltaic Systems on Urban Microclimate and Building Energy Demand

Urbanization and the urban heat island (UHI) effect have led to a significant rise in electricity demand, necessitating innovative and sustainable energy solutions. Photovoltaic (PV) panels offer a promising alternative to meet these energy demands; however, their integration into urban environments can influence local thermal conditions and building energy dynamics. This study investigates the interaction between solar PV systems and the urban environment, focusing on their effects on microclimate variables and building energy demand.

The Weather Research and Forecasting (WRF) model, configured with a high spatial resolution of 0.3 km, was employed to simulate the thermal and energy impacts of PV systems in Lyon, France. The model incorporated advanced urban parameterizations, including building energy and surface-layer schemes, to capture detailed interactions. Scenarios with varying PV deployment levels were analyzed to assess changes in key meteorological variables and energy demand.

The results indicate that PV systems influence urban thermal conditions and energy consumption patterns. Specifically, PV panels affect surface temperatures and heat fluxes due to their shading and energy conversion properties. These changes, in turn, have implications for building energy use, demonstrating a complex interplay between renewable energy deployment and urban environmental factors.

In conclusion, the study highlights the dual role of PV systems as both a sustainable energy source and a moderator of urban thermal dynamics. The findings provide valuable insights for urban planners and policymakers to optimize PV deployment strategies that balance energy efficiency and environmental sustainability in urban areas.

Work In Progress