Critical infrastructures account for a significant portion of our modern societies, underpinning the stability of our economies and societies. Among these, the electricity grid takes a special place due to the criticality of this industry and the potential impact of its failure. However, due to the nature of modern threats, including cyber attacks, this sector needs innovative approaches to threat identification and elimination. Our research focuses on the utilization of Open Source Intelligence technologies to protect critical infrastructures. This study also discusses how Critical Infrastructures are vulnerable and exposed to malicious attacks by discussing several significant cyber attacks on critical infrastructure (CI) in the last decade. This research is based on a framework developed for the current study, arguing that OSINT tools can analyze the landscape in this industry and how it can be used to mitigate potential risks. Targeting a company that supplies electricity to Istanbul, we have extracted key information like IPs, email addresses, open ports, services, etc, under a single platform, which is an entry point for malicious activity to attack in a sophisticated way. To the best of our knowledge, this is the first framework developed utilizing OSINT tools and creating an integration of OSINT tools to identify potential risks for energy sectors.