*Review* **Blockchain Technology Applied in IoV Demand Response Management: A Systematic Literature Review**

**Evgenia Kapassa \* and Marinos Themistocleous**

> Institute for the Future, Department of Digital Innovation, University of Nicosia, Nicosia 2414, Cyprus; themistocleous.m@unic.ac.cy

**\*** Correspondence: kapassa.e@unic.ac.cy

**Abstract:** Energy managemen<sup>t</sup> in the Internet of Vehicles (IoV) is becoming more prevalent as the usage of distributed Electric Vehicles (EV) grows. As a result, Demand Response (DR) managemen<sup>t</sup> has been introduced to achieve efficient energy managemen<sup>t</sup> in IoV. Through DR management, EV drivers are allowed to adjust their energy consumption and generation based on a variety of parameters, such as cost, driving patterns and driving routes. Nonetheless, research in IoV DR managemen<sup>t</sup> is still in its early stages, and the implementation of DR schemes faces a number of significant hurdles. Blockchain is used to solve some of them (e.g., incentivization, privacy and security issues, lack of interoperability and high mobility). For instance, blockchain enables the introduction of safe, reliable and decentralized Peer-to-Peer (P2P) energy trading. The combination of blockchain and IoV is a new promising approach to further improve/overcome the aforementioned limitations. However, there is limited literature in Demand Response Management (DRM) schemes designed for IoV. Therefore, there is a need for a systematic literature review (SLR) to collect and critically analyze the existing relevant literature, in an attempt to highlight open issues. Thus, in this article, we conduct a SLR, investigating how blockchain technology assists the area of DRM in IoV. We contribute to the body of knowledge by offering a set of observations and research challenges on blockchain-based DRM in IoV. In doing so, we allow other researchers to focus their work on them, and further contribute to this area.

**Keywords:** blockchain; smart grid; internet of vehicles; demand response; systematic literature review
