Thank you to these and all others that contributed to this research effort.v Executive SummaryThe General Services Administration (GSA) sustainably designed buildings investigated under this study use less energy and water, cost less to maintain, and have occupants that are satisfied when compared to typical buildings. Additional findings from the building performance analysis include: Aggregate operations costs are 19% lower than industry average  Carbon dioxide equivalent emissions are 34% lower than typical buildings  U.S. Green Building Council Leadership in Energy and Environmental Design (LEED) Gold rated buildings generally perform better when compared to industry baselines. Figure S1 represents the energy, water, and aggregate maintenance for each of the 22 buildings investigated. All of the Energy Star Portfolio Manager values were better than or equal to the industry baseline. Two-thirds of the water use intensity values (WUI, water use per gross square foot) and aggregate maintenance costs were better than the industry baseline. The buildings performing the best in all categories are located in the top right quadrant and have lighter colored circles. Figure S1. Energy performance is better than or equal to the baseline for all of the buildings, water performance and maintenance costs are better for two-thirds of the buildings. This whole building performance measurement study uses the data collected for Assessing Green Building Performance: A Post Occupancy Evaluation of 12 GSA Buildings, includes 10 additional buildings, and includes updated data for the original buildings set, resulting in measured building performance data for twenty-two GSA buildings, located in seven of its national regions ( Figure S2). The intent of the analysis is to inform GSA on how its sustainably designed buildings are performing in comparison to industry and GSA baselines of typically designed buildings for energy, water, maintenance and operations, waste, recycling, occupant commute, and occupant satisfaction. Thirteen of the buildings are LEED-certified, three are LEED-registered, one won the International Facility Managers Award for Sustainable Design and Energy Efficiency, while another five buildings emphasized energy efficiency during design. Figure S2. Twenty-two sustainably designed buildings from seven of the GSA regions are analyzed in this study.As of the winter of 2009, GSA had 40 LEED-certified buildings. Many of these buildings are newly constructed and thus did not have performance data available for participation in the study. Although this study involved a small number of buildings, especially when considering the size of the GSA portfolio, it includes approximately one-third of GSA's LEED-certified buildings. LEED certification levels and Energy Star scores are shown in Table S1. If a building had received an official Energy Star rating, the score is in parentheses in the Certification Level column. The Energy Star Score column has unofficial scores vii calculated from the data provided by the sites. ...

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Building Council's Government Committee and Emily Rauch became a member of the Research Committee. Their recent involvement in these groups has confirmed the need for a whole building performance measurement protocol, but has not directly impacted the project. i Preface This protocol was written for the Department of Energy"s Federal Energy Management Program (FEMP) to be used by the public as a tool for assessing building cost and performance measurement. The primary audiences are sustainable design professionals, asset owners, building managers, and research professionals within the Federal sector. The protocol was developed based on the need for measured performance and cost data on sustainable design projects. Historically there has not been a significant driver in the public or private sector to quantify whole building performance in comparable terms. The deployment of sustainable design into the building sector has initiated many questions on the performance and operational cost of these buildings. This protocol aims to generate high-level comparative measurement results of the performance of sustainably designed buildings. Originally developed in 2004-2005, this revised protocol reflects lessons learned from various studies and projects where the protocol was used as a primary tool for measuring whole building performance. This protocol includes two sets of metrics that need to be collected for each facility: building and site characteristics data and building cost and performance data. The metrics were selected for ease of collection, usefulness or relevance of the information to sustainability and the expected quality of the data to be collected. Each of the metrics identified in this protocol are considered important to offer a representative indication of building performance, however, due to anticipated data availability, some metrics have been identified as optional, and others have been removed from the list provided in revision 1. The data analysis and communication of results target the financial decision makers" need for measured performance and cost data on sustainable design projects. This protocol was not intended to answer all questions regarding the performance of sustainably designed buildings, but rather to offer indicators of performance and cost to further the knowledge base for the sustainable design business case. To date, the protocol has been used by the U.S. Navy to measure the performance of five sustainably designed buildings as compared to typically designed buildings in the same location and with similar use profiles. The protocol has also been used in a General Services Administration study to evaluate and compare the performance of twelve sustainably designed federal buildings located throughout the U.S. with both national and regional building performance averages. Other Federal agencies and private organizations are in the process or are considering using the metrics as well.

to collect data for the FEDS assessment. During this visit, PNNL engineers collected energy-related information and data from over 51 representative buildings, central plants, and other energy systems for input into the FEDS model.

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