Global warming and the resulting climate change are some of the biggest challenges and problems of today. In this context, a central role is played by energy transition, that is the transition from energy sources that release larger amounts of carbon dioxide, such as fossil fuels, towards clean energy sources. In this perspective, the contribution of photovoltaic energy is fundamental, in particular in Italy, where its abundance is relatively high compared to European average. In addition, renewable energy sources, being inherently decentralised, can contribute to energy independence, which is a very important topic after the huge increase in gas and electricity prices in Europe last year and recent geopolitical issues.