Vietnam has the advantage of being one of the countries in the highest distribution of sunlight of the year on the solar radiation map of the world. That is a great basis for our country to develop the solar power industry.
Vietnam has great potential for solar energy
While traditional energy sources such as coal and oil are gradually depleting, high cost, unstable supply, many alternative energy sources are being interested by scientists, especially energy sources. Sun.
This approach to take advantage of this new energy source not only contributes to the energy demand of society, but also helps to save energy and reduce environmental pollution.
The geographical location has favored Vietnam an extremely large source of renewable energy, especially solar energy. Stretching from latitude 23023 ‘North to 8027′ North, Vietnam is located in an area with relatively high solar radiation intensity. In particular, Ho Chi Minh City is the largest, followed by the Northwest regions (Lai Chau, Son La, Lao Cai) and the North Central region (Thanh Hoa, Nghe An, Ha Tinh) …
Solar energy in Vietnam is available all year round, is quite stable and widely distributed in different regions of the country. In particular, the average number of sunny days in the central and southern provinces is about 300 days / year. Solar energy can be exploited for two uses: electricity generation and heat supply
Solar energy has advantages such as: clean, low cost of fuel and maintenance, safety for users … At the same time, the development of the solar cell manufacturing industry will contribute to the replacement of energy sources. fossilization, reducing greenhouse gas emissions, protecting the environment. Therefore, this is considered a valuable energy source that can replace the old forms of energy that are increasingly exhausted.
For a long time, many parts of the world have used solar energy as an alternative to traditional resources. In Denmark, in 2000, more than 30% of households used solar panels, the effect of heating water. In Brazil, remote and rugged regions like the Amazon, solar power is always at the forefront. Even in Southeast Asia, solar power in the Philippines also ensures living needs for 400,000 people.
Exploitation is not commensurate with the potential of solar “electricity”
There are four types of solar technology currently available in the Vietnamese market. It’s household-scale, commercial-scale solar technology used for hotels, restaurants, hospitals, the military and service centers, for villages like public lights, sound. , TV and battery charging station.
Although there are many advantages, over the past time, solar energy products have not been widely applied, but only concentrated in rural and mountainous areas – where living standards are relatively low. Currently, our country has more than 3,000 households in remote and remote areas electrified by the household solar power system, 8,500 households using solar power through battery charging stations … but in inner cities like Ho Chi Minh City. Minh, only house uses solar power (by engineer Trinh Quang Dung sponsored by SIDA Swedish organization).
In Hanoi, the number of projects using solar cells are only counted on the fingers, such as: Solar panels connected to the common electrical network of the National Convention Center, grid connected solar cell stations installed on the roof Working with the Ministry of Industry and Trade, the first two solar lights combined with wind energy were installed at the Hoa Lac High Tech Project Management Board …
According to Mr. Nguyen Duc Cuong – Head of Center for Renewable Energy and CDM – Institute of Energy (EVN): The biggest barrier of this problem comes from the budget. Although solar energy is in the form of “raw materials”, the investment cost for exploitation and use is very high because technology and production equipment are imported from abroad. Most of the solar power projects that have been implemented are using foreign funding or loans. Therefore, only a few organizations, research institutes and universities have participated, while enterprises and individuals are still not “interested” in the application, production and use of electrical equipment. amount of the sun.
As for solar water heaters, which are considered widely applicable in the Vietnamese market with more than 10 manufacturing enterprises, the other difficulty is the lack of support from the State. research as well as funding, technical equipment for production. Electricity prices in Vietnam are still subsidized by the State, so people do not pay much attention to solar batteries. Some domestic solar energy products are suitable for the soil and climate conditions of Vietnam but cannot compete with Chinese products in terms of design, material and price … so it is difficult to reach consumers. .
According to Mr. Nguyen Duc Cuong, in order for solar products to be widely applied, the State should have a policy