  The energy market encompasses the behavior of energy supply and trading
within a platform system. By utilizing centralized or distributed trading,
energy can be effectively managed and distributed across different regions,
thereby achieving market equilibrium and satisfying both producers and
consumers. However, recent years have presented unprecedented challenges and
difficulties for the development of the energy market. These challenges include
regional energy imbalances, volatile energy pricing, high computing costs, and
issues related to transaction information disclosure. Researchers widely
acknowledge that the security features of blockchain technology can enhance the
efficiency of energy transactions and establish the fundamental stability and
robustness of the energy market. This type of blockchain-enabled energy market
is commonly referred to as an energy blockchain. Currently, there is a
burgeoning amount of research in this field, encompassing algorithm design,
framework construction, and practical application. It is crucial to organize
and compare these research efforts to facilitate the further advancement of
energy blockchain. This survey aims to comprehensively review the fundamental
characteristics of blockchain and energy markets, highlighting the significant
advantages of combining the two. Moreover, based on existing research outcomes,
we will categorize and compare the current energy market research supported by
blockchain in terms of algorithm design, market framework construction, and the
policies and practical applications adopted by different countries. Finally, we
will address current issues and propose potential future directions for
improvement, to provide guidance for the practical implementation of blockchain
in the energy market.
