This study investigates the viability of hybrid photovoltaic (PV), wind, and fuel cell (FC) systems for on‐grid and off‐grid operations for the Ashrayan‐3 housing project in Bangladesh, with an increased focus on sustainable energy solutions. Motivated by the issue of the delivery of proper and sustainable energy services to remote locations, we conducted an extensive analysis of load demand and found that an average daily demand of 46,176.65 kWh exists, with a peak load of 4852.8 kW. In this research, the HOMER software has been used to make a simulation of five different hybrid system configurations with differing mixes of renewable technologies. From the analyses, the systems based 100% on renewable resources suffer more initial capital costs, with a total net present cost increase of up to 20%, in comparison to conventional systems. On the other hand, the systems give much lower operational costs and cost of energies (COEs) of a minimum of $0.0253/kWh, reported from the on‐grid PV‐based system. On the other hand, the off‐grid PV–FC–wind turbine system showed a COE of $0.286/kWh, along with a decrease in CO₂ emissions by about 15,000 kg/year, showing a 30% decrease, compared with on‐grid systems. The results form a basis for the conclusion that such hybrid renewable energy systems are both economically and environmentally feasible. They can reduce COEs by up to 70% in off‐grid systems. This proves that the quality of life and energy security in developing regions will be highly increased, supporting the goals of sustainable development.

Although Bangladesh has the potential for 100% electricity generation, a power shortage caused by limited fossil fuel supply, alongside a growing fuel crisis, underscores the urgent need to shift towards sustainable energy solutions. This review paper delves into the realm of wind energy, assessing its potential as an alternative and renewable energy source within the country. It explores the promising prospects of wind energy, underpinned by the country's favorable geographical and climatic conditions. However, a variety of obstacles that fall into the technological, financial, and environmental categories stand in the way of fully realizing the promise of wind energy. Technical concerns include things like grid integration, intermittency management, and turbine technology. Significant challenges are posed by economic impediments, such as high starting expenses and inadequate finance channels. Furthermore, the complex interactions between wind energy and the environment demand that environmental effects be carefully considered. This study proposes potential solutions that include technology innovation, governmental interventions, financing methods, and environmental management strategies to solve these difficulties. This article has put forth actionable suggestions in three areas: technological, economic, and environmental. In the field of technology, it is important to enhance the design of turbines, including the potential benefits of diffused augmented wind turbines (DAFT) and building augmented wind turbines (BAWT). A stable microgrid system could be a beneficial asset for Bangladesh's current circumstances. In addition to cooperation between development financial institutions (DFIs) and government, Feed-In-Tariffs (FITs) and green bonds could serve as effective mechanisms for funding renewable energy projects.