关键词：新能源与高效节能；能源效率；节约能源；能源消耗
摘 要：Since 2007, PNNL has conducted Energy Efficiency Expert Evaluations (E4) field training and facility assessment in the Heartland Region (GSA Region 6) buildings to identify low-cost/no-cost opportunities that have the potential to reduce building energy use by up to 10 percent. Based on a follow-up study and feedback from operation and maintenance (O&M) staff, it was recognized that only 50 percent of the recommended measures were implemented and the lack of control systems expertise was often found to be a major challenge in following up on the E4 recommendations. Hence the region undertook a new initiative in 2011 to perform targeted E4 field audits to identify and assist O&M staff implement control system measures to realize the energy savings.