The Electric Smart Grid (ESG) is referred to as the next generation electricity power network. The ESG is an intelligent critical infrastructure subject to various security vulnerabilities and especially data privacy breaches. This study presents a comprehensive overview of the latest privacy-preserving mechanisms and policies in the ESG, while promoting the employment of modern access control techniques towards preventing personal data disclosure, affecting both utility companies and consumers. Efficient categorization is provided regarding the proposed privacy preserving methods and characteristics, while focus is also given on the use of the Blockchain technology and the Multi Authority Access Control paradigm in the ESG infrastructure. The study concludes with a discussion upon privacy and access control challenges, as well as future work concerning the ESG.

中文翻译：

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隐私和访问控制的挑战是未来电力智能电网的主要前景

智能电网（ESG）被称为下一代电力网络。ESG是一个智能的关键基础架构，容易遭受各种安全漏洞，尤其是数据隐私漏洞的侵害。这项研究对ESG中最新的隐私保护机制和政策进行了全面概述，同时促进了现代访问控制技术的使用，以防止个人数据泄露，从而影响公用事业公司和消费者。针对所提出的隐私保护方法和特征，提供了有效的分类，同时重点关注了ESG基础架构中区块链技术和多权限访问控制范式的使用。研究结束时讨论了隐私和访问控制方面的挑战，