The Centre for Energy Conservation and Technology Transfer Consulting in Da Nang, under the Department of Science and Technology has implemented many models of applying solar energy in Hoa Vang District, bringing practical effects to life and the community.

Solar-powered lamp systems are installed at some community centres and public entertainment venues in Hoa Vang District

Based on the proposal made by Hoa Vang District, in 2023, the Centre for Energy Conservation and Technology Transfer Consulting in Da Nang implemented the task of ‘Applying solar energy in public lighting’ with the installation of solar lighting systems at cultural-sports centres and houses exclusively  for community activity in some communes in Hoa Vang District. This activity aims to support communes in the district to complete the goal of building an advanced new rural programme.

It is known that Da Nang is a locality with relatively large data on solar radiation and average sunshine hours per year. This is the potential for the city to develop solar energy, use renewable energy, reduce pressure on the national grid, and prevent environmental pollution. The city has installed a total of 10 solar lamp posts with a capacity of 100W in public areas in the district.

The installation was calculated and the unit selected equipment suitable for the actual characteristics of the locations in the district. This is an automatic system that turns on/off using electricity from solar panels or can operate according to user settings.

Solar lighting is made up of many different parts, including solar panels that collect light energy from the sun and convert them into electrical energy to help the lights operate; storage batteries (accumulators) that help store energy generated from solar panels during the day for use at night or on cloudy days; LED bulbs; charge controllers, optical sensors, separate lights, and integrated lights.

After the installation, testing and operation, the system has brought many extremely practical benefits to local people. Previously, the deployment locations did not have enough lighting, so it was very dark at night, affecting residents’ lives.

After the deployment, these areas have become much brighter. In particular, the newly-installed system uses entirely solar energy, saving energy and being safe, and people do not have to spend any extra electricity costs to light up at night.

Ms. Nguyen Thi Tanh, Head of Duong Son Village, Hoa Chau Commune,  Hoa Vang District said that the people in the village are very happy and excited when the village has a lighting system installed to serve the cultural life of the villagers well at night. The lighting system installed at the points using solar energy is very energy-efficient with a reasonably arranged lighting system, serving the needs of the people.

Compared to high-pressure, solar-powered lamps have a relatively high initial investment cost. However, solar-powered lamps have very low operating costs, with an average system life of over 10 years. Thus, in 10 years of use, the cost of a solar-powered lamp system is much lower than that of a high-pressure lamp system.

In addition, the solar-powered lamp system also brings convenience, increases urban aesthetics and reduces CO2 emissions, contributing to environmental protection. It is hoped that solar-powered lamp systems will be installed at other community centres and public entertainment venues in the near future.

Reporting by THANH THAO - Translating by A.THU, P.TRA