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The E-Scale ends at zero , which equates to the Builders Challenge goal to provide a “ net zero energy home ( NZEH ) anywhere in the United States - a grid-connected home that , over the course of a year , produces as much energy as it uses ” The Builders Challenge program and E-Scale requirements are based on years of research results from the United States Department of Energy ’s Building America program .
 organization: United States Department of Energy
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
 Entities: United States Department of Energy 
Answer:
 organization: United States Department of Energy