Building Integrated Photo Voltaic (BIPV) systems are a promising technology that offer numerous benefits, including energy savings, reduced carbon emissions, and improved aesthetics. However, designing and implementing BIPV systems that are efficient and effective requires careful consideration of several factors. These include high building design, colored PV modules, optimization systems, and policies and regulations. By integrating PV modules into the building's design and using advanced control and monitoring systems to maximize energy generation, BIPV systems can achieve significant energy savings and carbon emission reductions. The deployment of BIPV systems is also influenced by financial incentives and building codes. This review paper, will first discuss the various definitions proposed for different types of energy consumption, followed by the concept of "prosumer."The next section will focus on policies, followed by the different types of technologies for BIPV proposed in the literature, including pioneering countries in the sector. After reviewing the costs of various models and the different optimization techniques proposed in the literature, it will conclude by discussing the various challenges and opportunities of such systems.