A solar energy system with capacity of 1 KW was installed on the terrace of Redsun’s building in district 5, HCMC in 2010. Since then, the system has been operating well, allowing activities at the buildings to run properly even when the electricity from the national grid is cut. The company doesn’t have to run electricity generators which produce noise and dust.

Hiep, of district 6, HCMC installed a 1 KW solar power system on the roof, worth VND80 million. The electricity provided by the system, about 4-5 KW, is used to light four 40W fluorescent lamps, run four electric fans and one TV.

With the 2 KW solar power system, VH in Ham Tan district of Binh Thuan province can save two-thirds of expenses on electricity.

The outstanding feature of the system is that it allows him to automatically use the electricity from the national grid when the system cannot provide enough electricity.

If the system provides more than enough electricity, the redundant capacity will be automatically transferred to the national grid. Tiếp tục đọc “Solar power costs remain high in Vietnam” →