As a significant technique for boosting the energy evolution

Energy Internet(EI)provides a new opportunity for marketization

liberalization and flexibility of multi-energy trade. Based on the core concept of EI

firstly

the preliminary definition and construction objectives of EI market are proposed. Then

with the comparison of traditional single energy markets

including electricity market

natural gas market and district heating/cooling market

EI market presents four particularities on synthetical trading of multiple energy carriers

market entry of large-scale distributed players

support of flexible and intelligent energy consumption and increasing dependency of information technology. On this basis

the framework design and transaction mechanism of EI market are analyzed in detail. Finally

key issues and research prospects of EI market are concluded.