On September 25, 2024,(1) China began construction on its first high-voltage AC/DC hybrid power grid project in Jiangsu Province. This groundbreaking initiative will connect the cities of Huai'an and Danyang with approximately 141.67 miles of DC transmission lines, supported by two 200 kV highly efficient converter stations. The hybrid design promises significantly reduced energy losses compared to traditional AC systems

1. Energy Efficiency: by transmitting via DC it reduces energy losses over long distances compared to AC systems.(3) 

2. Flexibility: The combination of AC and DC systems allows us to be able to easily integrate renewable energy sources like wind, and solar, witch naturally generate DC power.

3. Reduced Power lines: DC lines can carry more power over a single line compared to AC, reducing the need to add additional power lines. 

4. Scalability: It can be scaled up and upgraded, to accommodate growing energy demands and new technology.

1. High initial cost: the converter stations and advance control systems along with dc transmission lines. are more expensive to design, install and maintain.

2. Complexity: Managing the integration of AC and DC systems adds more complexity to the power grid. 

3. Maintenace Requirements: the converter stations can require specialized maintenance due to the integrations of new advance tech. 

4. Compatibility issues: existing AC based infrastructure will need its own converter to work with the hybrid system. 

5. Cybersecurity Risks: The digitalization and interconnectivity of the hybrid grid can make it vulnerable to cyber-attacks. The converter station would probably rely on a digital control system.