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Elia Grid International active in Vietnam with three projects to support renewable integration

30/11/2018

Vietnam pursues important economic development in the coming decade, leading to an expected average annual gross domestic product growth of 7% until 2030. To cover this growing demand, significant investments will be undertaken in the conventional thermal fleet and in hydro-generation. In addition, the development of renewable energy sources for electricity production is foreseen to increase to above 10% of the generation mix in 2030.

Elia Grid International has been very active in Vietnam in 2018 to support the transmission system operator (NLDC) and the authorities to prepare the transformation of the Vietnamese power system. Elia Grid International has led three projects including system studies, recommendations and capacity building.

 

RES hosting capacity of the Vietnamese power grid

In the first project, Elia Grid International has assessed the possible amount of RES Generation that can be connected to the Vietnamese grid without any grid reinforcement. Elia Grid International has collaborated with local experts to set up a detailed model of the Vietnamese power system and to perform extended power system simulations to define the grid hosting capacities.

In a second step, Elia Grid International has developed a probabilistic approach – meeting the Vietnamese context – to size the need of spinning and non-spinning reserves in the country, with a raising share of renewable.

Finally, based on German and Belgian experience, Elia Grid International has listed recommendations for the Vietnamese TSO to operate the grid in a reliable, cost-effective and sustainable way.

The results of this project have been presented to the Vietnamese stakeholders and Official Development Assistance agencies active in the country.

Elia Grid International’s project experts consisted of Fabian Georges, Tarek Fawzy, Josephine Sindermann, Omar Huarcaya and William Petteau.

 

Assessing the stability of the power system with increasing RES shares

The integration of RES changes the dynamic of the power system: more converter-based RES in the power system means less conventional rotating machines, thus less inertial response in case of frequency disturbance. In the event of large amounts of RES are added to the system in relatively remote areas the ratio of the short circuit level to the installed RES capacity can become critically low, with a risk of instability.

In the second project, Elia Grid International has developed a methodology to test the stability of the Vietnamese power system. This methodology has been implemented by NLDC. NLDC and Elia Grid International have collaborated to analyze the results and to identify solutions to overcome the stability challenges.

Elia Grid International’s project experts consisted of Fabian Georges, Amir Dahresobh, Fortunato Villella and Aymen Chaouachi.

 

Developing a wind generation forecast architecture

After conducting interviews with local key stakeholders and on-site visits in the third project, Elia Grid International has drafted a roadmap to implement a state-of-the-art wind generation forecast architecture. Several models have been presented to the stakeholders and recommendations have been made on the best design choices.

Elia Grid International’s project experts consisted of Josephine Sindermann and Omar Huarcaya.

 

Based on the success of these projects, NLDC and Elia Grid International have decided to enter a multi-year collaboration program.