This exhaustive investigation is dedicated to delving into the intricate legal aspects that underlie the inefficiency in the advancement and utilization of sustainable energies, with a primary focus on the dynamic landscape of China and carefully selected representative nations. In an era where the global community increasingly acknowledges the pressing need for environmentally-friendly alternatives to traditional fossil fuels, renewable energy sources have rightfully garnered substantial attention as encouraging solutions. Nevertheless, notwithstanding their potential to revolutionize the energy sector and counteract climate change, a multitude of legal and regulatory barriers may present formidable hindrances that impede their seamless integration into the energy landscape. With a resolute and concentrated aim, the research sets forth on a painstaking exploration and analysis of the intricate legal frameworks, policies, and institutional arrangements in place within China and the chosen representative nations. The ultimate objective is to discern and identify potential challenges and inefficiencies that could hinder the progress of renewable energy projects and initiatives.

翻译：本研究致力于深入探讨导致可再生能源开发与利用效率低下的复杂法律因素，重点关注中国及精选代表性国家的动态发展格局。在全球社会日益认识到迫切需要环境友好的传统化石燃料替代方案的时代，可再生能源作为极具前景的解决方案理应受到广泛关注。然而，尽管其具有变革能源行业和应对气候变化的潜力，诸多法律与监管障碍可能构成重大阻碍，影响其在能源领域的顺利整合。本研究以坚定而聚焦的目标，对中国及选定代表性国家现行的复杂法律框架、政策及制度安排展开细致探索与分析，旨在识别可能阻碍可再生能源项目与倡议推进的潜在挑战与低效环节。