mith Power recently delivered and started-up a mtu-Rolls-Royce EPA Certified Tier 4 DS300, 300kW generator to the National Renewable Energy Labs in Golden, CO. Its role is to help assist with overall site emissions reductions; the EPA Tier 4 Certified engine meet the requirements. The 4-cycle DS300 has a John Deere 6090HFG86 diesel engine with a 9-litre displacement, a Common rail fuel injection system, a resilient mounted engine-generator, a Cooling system and an engine-driven fan. The National Energy Lab is one of 17 which have been designed to tackle the critical scientific challenges of the 21st Century, from combating climate change to discovering the origins of the universe. The site in Golden, CO, features unique instruments and facilities, many of which are found nowhere else in the world. The lab addresses large scale, complex research and development challenges with a multidisciplinary approach which places an emphasis on translating basic science to innovation.