SPEAR is a research programme funded by the H2020 framework of the European Union (EU) under the Grant Agreement (GA) 78701. The purpose of SPEAR is threefold: (a) to detect timely potential intrusions and anomalies against the smart electrical grid, (b) to provide a Forensic Readiness Framework (FRF) and (c) to increase cybersecurity-related situational awareness. Based on the aforementioned remarks, the SPEAR platform consists of three main architectural systems: (a) SPEAR SIEM, (b) SPEAR FRF and (c) SPEAR Cyber Hygiene Framework (SPEAR CHF). Each system includes several components collaborating with each other in order to detect and mitigate cyberattacks against the smart electrical grid in a timely manner. During the final reporting period, all the SPEAR components were implemented and demonstrated successfully in four use cases/pilot, namely (a) Hydropower Plant Scenario, (b) Substation Scenario, (c) Combined IAN and HAN Scenario (d) Smart Home Scenario. Therefore, all the SPEAR objectives, as described in the Grant Agreement (GA), were accomplished. For each use case/pilot, the expected target values for each Key Performance Indicator (KPI) were achieved. Based on the SPEAR components and their services and algorithms, 33 research papers were published in international scientific journals, conferences and workshops, such as, for instance, IEEE Communications Surveys and Tutorials (IF: 25.25) IEEE Transactions on Network and Service Management (IF: 4.195) and Computer Networks (4.474). Moreover, SPEAR received two best paper awards. With respect to the exploitation activities, it is noteworthy that based on the SPEAR outcomes, MetaMind Innovations, the first spin-off of the University of Western Macedonia, was created in May 2021. In a similar manner, three business-to-business agreements are prepared between (a) SCHN ES and TEC, (b) SCHN ES and UOWM and (c) PPC and UOWM. Furthermore, all the technical partners are planning to exploit their SPEAR-related outcomes. Finally, all the dissemination KPIs, as described in the Grant Agreement (GA) (Table 2.1) were accomplished and SPEAR was interconnected with pan-European communities, such as EE-ISAC.