The Guangzhou International Hydrogen Energy Industrial Park has initiated a groundbreaking project aiming to establish a large-scale hydrogen-based combined heat and power (CHP) microgrid. This project, led by the Guangzhou Power Supply Bureau of Guangdong Power Grid Corporation, focuses on integrating fuel cell power generation with waste heat utilization to achieve a combined heat and power efficiency exceeding 90%. It emphasizes multi-energy flexible conversion, enabling seamless transitions between electrical, hydrogen, and thermal energy to meet diverse energy needs. By promoting the hydrogen energy industry and driving regional economic synergy, the project aims to enhance the industrial competitiveness of the Greater Bay Area and contribute to the overall upgrading of the sector. Furthermore, the project supports the development of a new-type power system characterized by hydrogen-electricity interaction, offering innovative solutions for power grid regulation in megacities. It also addresses energy needs in special scenarios like remote islands, where traditional energy supply is challenging. Despite the initial substantial investment and the need for cost control, the project's success could lead to significant advancements in China's energy transition and sustainable development. To ensure long-term stability and reliability, continuous technological optimization and efficient management are crucial. The project's success could pave the way for a more stable, efficient, and clean energy system in China, setting a benchmark for global energy innovation and industry development.