PEG is a full service environmental, engineering and energy consulting firm with its corporate headquarters located in the Washington DC Metropolitan area. PEG is pleased in its thirteenth year of operation to be serving the built environment consulting needs of commercial, consumer and residential clients throughout the United States. PEG presently certifies more than 10,000 Energy Star homes a year and is a National HERS Provider, Sampling Provider, HERS Training Provider and LEED for Homes Provider.