The Meeting of the Electrochemistry Group of the Spanish Royal Society of Chemistry (RSEQ) is an annual event that has taken place since the late 1970s. The meeting brings together the entire Spanish electrochemistry community at a single event to discuss the latest advances in our field, and normally takes place in different Spanish cities. Over the last decade, mainly due to the deep economic crisis experienced in Spain, the number of electrochemists trained in Spain who have emigrated and today lead important groups in other European countries and in the USA has grown significantly. Thus, the XLI Meeting of the Electrochemistry Group was organized in Paris (France) in 2021, and served to regroup all electrochemists trained in Spain, both emigrants and residents. By holding the meeting outside of Spain, the Electrochemistry Group aimed to internationalize the group‘s meetings and to strengthen collaborations with the French electrochemistry community. Stengthening collaborations with Spain: This Special Collection includes reports of the latest advances from expert researchers in environmental and energy applications within the growing field of electrochemistry. The articles provide important contributions towards the progress in France and Spain, and the international electrochemistry community, and the development of electrochemical solutions for the electrification of processes.