The aquaculture industry, especially shrimp and fish farming in key areas, makes an important contribution to the Vietnamese economy. However, this industry is also facing many problems such as high production costs, low economic efficiency and problems from environmental pollution... Furthermore, challenges from green transformation and emission reduction are also putting pressure on people, forcing them to apply technology and scientific advances in agricultural production.
In Ben Tre, the model "Application of solar energy systems in shrimp farming and production" is considered an effective and sustainable solution for the aquaculture industry. This model uses solar energy to provide electricity for shrimp farming activities such as aeration, water fans, pumps and lighting systems, as well as partially supporting the shrimp production system after the fishing period. .
Deployed from 2022, the installation process is divided into 2 phases: 250 kW first, 150 kW later with a total investment of more than 5 billion VND. The system has a total capacity of 400 kW, providing electricity for all 7 hectares of shrimp ponds. The amount of electricity produced is used to raise shrimp, accounting for 70%, the remaining is used to run the system. After the remaining electricity, the remaining electricity will be pushed directly to the grid. The manufacturer shared that he did not want to use a battery storage system because it was dangerous and partly because the cost of storing electricity was not much more than connecting electricity to the grid. The total average annual capacity of this solar energy system can reach 6000 kWh, completely suitable to provide electricity for 2-3 rural households for 1 year.
After using the model, electricity costs have been reduced by more than 65% compared to before installation. In 2023, when our country has just experienced a stressful epidemic, shrimp farming productivity will reach 7 tons. This productivity level is calculated to be 3-5 times higher than the traditional method, providing a significant source of income for people.
Besides the advantages, this model also has some limitations. High initial investment costs limit model replication. Specific weather factors also partly affect the system's performance. The presence of salt and salinity from sea breezes directly affects the aluminum frame of the metal panel.
The model "Application of solar energy systems in shrimp farming and production" is an effective and sustainable solution for the aquaculture industry. This model will contribute to improving economic efficiency, protecting the environment and developing the aquaculture industry in a sustainable way.