A Cost-Optimal Pathway to Integrate Renewable Energy into the Future Vietnamese Power System

The Vietnamese power system is expected to expand considerably within the upcoming decades with a large scale penetration of renewable energy. This paper presents the techno-economic model to optimize investment and operation costs for the Vietnamese power system with the integration of wind and solar power within one decade. A simplified 46-bus Vietnamese power system has been tested to validate the model which minimizes the total annual system investment and operation costs. The cost-optimal case shows the possible location, total wind or solar capacity installed at each bus, and satisfies the power balance, transmission lines capability and system reserve. The paper results can be used for Vietnamese power system planning and grid expansion with a reasonable integration of renewable energy.