The results of this initiative are already tangible: electricity consumption has decreased by 54% in five years, with the first renovation phase taking place in 2021. This reduction demonstrates the effectiveness of the actions taken regarding sobriety and energy performance.
The electricity bill has also evolved, going from €46,987 in 2021 to €27,250 in 2024. In 2025, despite a further decrease in consumption, the bill stands at €28,896. This evolution is notably explained by fluctuations in the cost of electricity, which are not directly proportional to the amount of energy consumed. Thus, the reduction in consumption is accompanied by a 39% decrease in the bill over five years.
The installation of connected astronomical clocks now allows for precise adaptation of lighting on and off times according to needs and events, thereby enhancing user safety while limiting light pollution.
