WGT Climate change has become a key challenge for the modern world. Actions for environmental protection are not a temporary trend, but a development strategy that allows companies to develop faster and build a stable position of enterprises in the long term. Especially that care for ecology is one of the most important factors that influence consumer decisions. Sustainable development of transport is one of the main goals of the international community. The railway, which is a leader in terms of the smallest negative impact on the environment, fits perfectly into them. It is characterized by over 3 times lower carbon dioxide emissions than road transport and over 8 times lower emissions than air transport, which makes it the most ecological means of public transport. ENIKA designs, manufactures and supplies power electronic devices for the railway industry. Their recipients are companies producing and modernizing rolling stock, direct users of vehicles, as well as companies involved in the construction and modernization of infrastructure. Our ISO 9001:2015 and ISO/TS 22163:2017 certificates allow us to offer devices of the highest quality and reliability.