In a recent development, Regionalverkehr Köln GmbH (RVK) has introduced the first Solaris articulated hydrogen buses into the public transport network of Cologne, Germany. These 18-metre-long buses are part of an order for 18 hydrogen vehicles, with 8 of them already operational in RVK's fleet. The addition of these buses has expanded RVK's fleet to a total of 46 Solaris hydrogen buses, with plans for more deliveries. RVK's hydrogen fleet is anticipated to become the largest in Europe with an order of 20 additional hydrogen buses from Solaris. These buses are equipped with a 100 kW fuel cell system and can store over 50 kilograms of hydrogen, allowing for increased passenger capacity and modern features. The use of hydrogen buses provides several benefits for public transport, including zero-emission operation, large passenger capacity, long range, and short refuelling times. RVK aims to efficiently transport daily commuters from rural areas to Cologne using these hydrogen-powered buses. The sentiment of the article is positive, highlighting the innovative and sustainable approach of RVK towards public transport. This initiative aligns with the broader goal of transitioning towards eco-friendly and efficient transportation solutions.