35 Business consulting services in the fields of energy measurement to improve energy efficiency within residential, commercial, industrial and institutional facilities; Business management consulting with relation to strategy, marketing, sales, operation, product design particularly specializing in the use of analytic and statistic models for the understanding and predicting of consumers, businesses, and market trends and actions; Consulting services in the fields of energy consumption and usage conservation to improve energy efficiency; Home energy assessment services for the purpose of determining energy efficiency or usage management; Provision of an on-line marketplace for buyers and sellers of energy efficiency products