 three new zephir lok 16 300 depot shunters leased to gb railfreight are now in service at celsa steel uk in cardiff the shunters which are owned by porterbrook are expected to reduce emissions by c 40% and will be used to move steel billets from an electric arc furnace to celsas rolling mills where it will be used to make metal sections bar and rods these products are then transported to sites across the country where they are used in construction and infrastructure projects gb railfreight and celsa steel uk have decided to open a series of competitions to name the three vehicles which will be launching early next year mark wyborn head of freight and route services at porterbrook said providing sustainable assets for depot operations is an important step in reaching the uks net zero target so its fantastic to see these zephir shunters begin operating at celsa steel uk we look forward to working alongside our partners to roll out more affordable innovative and sustainable rolling stock for the industry john smith chief executive of gb railfreight said its great to see these clean green new shunters enter service at celsa steel uk theyre another example of how the rail freight sector plays a critical role in decarbonising the uks supply chains im looking forward to seeing the nominated names for the new shunter locomotives were hopeful we can use this to raise some money for charity and make people smile gabriella nizam head of sustainability public affa irs at celsa steel uk said celsa steel uk proudly welcomes gb railfreights low emission shunters contributing to a greener supply chain were excited about the naming competitions for these shunters engaging our charity partners and the public all while supporting worthy causes 