In the past years trend of microgrids is increasing very fast to reduce peak-hour costs. However, in these systems, third parties are still involved in selling surplus energy. This results in increased cost of energy and there are many operational and security barriers in such systems. These issues can be solved by the decentralized distributed system of microgrids where a consumer can locally sell their surplus energy to another consumer. To deploy such a system, one must consider security barriers for the transaction of energy. This paper proposes a solution to these problems by devising a scheme as a marketplace where users interact with each other to buy and sell energy at better rates and get energy-generating resources on lease so that users do not have to worry about capital investment. Agreement between owner of resources and consumer is recorded on blockchain based smart contracts. In this paper, a survey is performed for existing well known, decentralized energy solutions. This paper also proposes an extra layer of security to leverage a shielded execution environment so that information of energy generated, utilized, and shared cannot be changed by consumers and third parties even if the system is compromised.

翻译：近年来，微电网的发展趋势日益加快以降低高峰时段成本。然而，此类系统中仍有第三方参与剩余能源的销售，导致能源成本增加，且存在诸多运营与安全障碍。通过微电网的去中心化分布式系统可解决这些问题，使消费者能够将多余能源直接出售给其他消费者。要部署此类系统，必须考虑能源交易的安全屏障。本文提出一种解决方案，设计了一个市场机制：用户之间以更优价格进行能源买卖，并通过租赁发电资源来避免资本投资压力。资源所有者与消费者之间的协议记录在基于区块链的智能合约上。本文对现有知名的去中心化能源解决方案进行了调研，同时提出增设一层安全防护——利用屏蔽执行环境，确保即使系统被攻破，消费者与第三方也无法篡改能源产量、使用量及共享量的信息。