Modern-day scientists have experienced a wide utilization of wireless sensor networking benefits for offering better cyber-security measures. With the application of WSNs over a smart micro-grid generation, critical security protocols, controlling communication, and monitoring the entire smart power grid system have become easier these days. Due to the application of WSNs systems in recent times, all the complex controlling and monitoring issues have been resolved with enhanced cyber security scopes for a sustainable future. In order to examine the particular research topic, researchers have performed a primary data gathering method by quantitative analysis. Through processing three relevant survey questions, they have conducted a probability sampling method for gathering the responses of almost 70 participants regarding the research topic. All the research outcomes reflect that around 52% of the participants have strongly agreed with the use of WSNs for better communication controlling and monitoring facilities. Apart from this, around 55 % of the people have supported that WSNs can aid in more accurate cyber security measures for protecting authentic information. On the other hand, almost 50% of the participants have expressed their negative responses over the use of WSNs towards more error reduction rate in controlling and measuring the overall smart-grid system. Researchers, therefore, are going to investigate the contributions of WSNs to understand their advantages for better smart micro-grid generation management in the sustainable future.