A recent study published in the journal “Energies” has shed light on the growing challenge of integrating rooftop photovoltaic (PV) systems into the electric grid. Conducted by Gabriel Kasmi from MINES Paris, Université PSL Centre Observation Impacts Energie, the research highlights a significant leap in our understanding and estimation of power production from these small-scale solar installations, which account for about 20% of the total PV capacity in France.
As the global installed capacity of PV systems reached 1552.3 gigawatts (GW) in 2023, with France contributing 19.9 GW by April 2024, the need for effective integration of this renewable energy source into the grid has become increasingly critical. However, transmission system operators (TSOs) often struggle with what is known as “poor PV observability.” This term refers to the lack of accurate measurements from small rooftop systems, which can lead to difficulties in managing the grid efficiently, including potential imbalances and increased power reserve requirements.
Kasmi’s research addresses this issue by leveraging ground-truth measurements from individual rooftop PV systems and combining them with weather data and characteristics derived from remote-sensing techniques. The study demonstrates that with minimal information about these systems, it is possible to achieve accurate estimations of their power production. “We can derive accurate estimations of the PV power production at the individual level,” Kasmi noted, emphasizing the potential for improved grid integration.
The implications of this research are significant for several sectors. For energy providers and TSOs, the ability to estimate rooftop PV power production more accurately could lead to better grid management and reduced operational challenges. This could enhance the reliability of energy supply and facilitate a smoother transition to renewable sources, aligning with global decarbonization goals.
Moreover, this study opens up commercial opportunities for technology companies involved in solar energy and remote sensing. By developing tools and platforms that utilize the findings from this research, these companies could provide innovative solutions for monitoring and managing rooftop PV systems, ultimately contributing to a more sustainable energy future.
As the demand for renewable energy continues to rise, the insights from this study could play a crucial role in shaping policies and practices surrounding solar energy integration. The research showcases that even with limited information, effective estimations of PV power production are achievable, paving the way for enhanced observability of rooftop systems and better integration into the electric grid.
This work not only highlights the technological advancements in PV estimation but also emphasizes the collaborative potential between remote sensing and energy sectors, fostering a more resilient and sustainable energy landscape.
