Proceedings of the International scientific and practical conference ―Science, Technology and Culture in the Era of Globalization‖ (December 24-26, 2025) / Publisher website: www.naukainfo.com. – Geneva, Switzerland, 2026. – 234 p.

191 main infrastructure, reduce transmission losses, and ensure a basic level of power supply during crises. At the same time, favorable natural and climatic conditions create the preconditions for the widespread implementation of photovoltaic technologies as components of a distributed energy system. Realizing the potential of decentralized renewable energy requires a scientifically grounded assessment of the spatial and temporal characteristics of power generation. This article utilizes data from open sources, scientific research, and open-access satellite data on built-up areas, refined using high-resolution spatial materials, allowing for the identification of suitable rooftop areas and the corresponding installed capacity and electricity production indicators. The modeling results demonstrate the substantial technical potential of rooftop photovoltaic generation, which can be integrated into local energy systems without imposing significant burden on centralized grids. The obtained estimates indicate that the greatest potential is concentrated in regions with high urban density, where the development of local generation can become the foundation for establishing microgrids and energy communities. The validation of results against previous studies confirms their reliability and practical applicability. Thus, rooftop photovoltaic systems are considered not only as a source of renewable energy but also a structural element in the transition from a centralized energy supply model to resilient local solutions in times of crisis. The modern energy sector is on the threshold of fundamental changes driven by the need to transition to sustainable, secure, and low-carbon development. Renewable energy sources (RES) play a key role in this transformation, contributing to the reduction of greenhouse gas emissions and the diversification of energy resources. At the same time, there is a growing awareness of the need not only to increase the share of renewable sources in the energy mix but also to create more flexible, adaptive, and resilient energy systems. Under the traditional centralized energy supply model, heavy dependence on main infrastructure creates a high degree of vulnerability, particularly during crisis events such as military conflicts, natural disasters, or technical breakdowns. These