Solar Energy Helps Reduce Electricity Costs 20% Every Month

11:07:17 AM | 5/4/2019

Sao Mai Group successfully energized a 1.06-MW solar power plant in Vam Cong Industrial Park, Lap Vo District, Dong Thap Province, in the middle of 2017. Costing US$2 million of investment capital, this clean energy source is helping the company’s manufacturing facilities reduce electricity costs by 20% per month.

In 2017, the roof of the Frozen Aquatic Factory No. 1 run by International Development and Investment Corporation (IDI), Sao Mai Group, installed 2,970 solar panels in the southeast direction, anchored by strong support frames tilting 12 degrees to catch the most sunshine. This design ensures high safety in stormy, windy weather, and even withstands 12-grade storms near the sea. The distance between battery ranges is large enough to move in case of repair or warranty.

According to statistics, on average, Dong Thap province has about five hours of sunshine a day and exposes to radiation intensity greater than 3,489 kcal per square meter per day. Therefore, Sao Mai Group investing a handsome amount of money to install solar power panels on the roof of the Frozen Aquatic Factory No. 1 is a right decision and a long-term strategy.

To convert photovoltaic into two-way electric current, the factory uses eight large inverters and conduits. This solar rig has a total capacity of 980 kwp, capable of generating about 1,400 MW of electricity annually, helping IDI’s factory reduce electricity costs about 20%, equivalent to VND417 million a month. So far it has helped save over VND15 billion in total. The investor will reach the breakeven point in the next five years, and the system will generate electricity at almost no cost in the next 20 years. However, this system only meets 30% of the electricity need of the factory and IDI therefore cannot sell solar electricity to EVN.

In fact, aquatic processing factories consume huge amounts of electricity. On average, a ton of raw materials requires 57 - 2,129 kWh of electricity and a ton of finished product, 324-4,412 kWh. The freezing system accounts for the most, at 70%.

If aquatic processors in the Mekong Delta invest in the solar power model that Sao Mai Group made for IDI, it will substantially reduce power bills and effectively save energy for the nation.

Kieu Anh