Grid connected solar power in Ho Chi Minh City

For the first time in Vietnam, TS. Le Hoang Thi To and her team of Duc Anh Quan Company (Phu Nhuan District, Ho Chi Minh City) researched and successfully implemented the technical solution of ' Grid connected with solar power '.

The solar roof (MNMT) consists of a system of solar panels that generate direct current. This direct current will be turned into alternating current thanks to one or more DC-AC power transformers. Alternating current has quality and safety as grid electricity.

According to Dr. Le Hoang Thi To, the MNMT system operates absolutely safely (according to EN DIN standard - standard with equipment parameters), does not affect the national grid, the connection is the same as the equipment used. Other common power. MNMT system will have effect to support the grid in reducing the load at peak hours.

The main technical parameters of the MNMT system are as follows: MNMT is a grid-connected photovoltaic system, specifically a photovoltaic generator will be installed at the user's site (household, or office, public). manufacturing company .), the photoelectric generator is connected to the grid through the electrical coupling unit.

Dr.Le Hoang Thi To and her team researched and successfully implemented the technical solution of ' grid connected solar roof '.

The electricity generated from the MNMT system is used for electrical equipment in the house to replace the electricity grid. If the power output is greater than the power consumption, the excess power is fed into the storage system. Conversely, when the amount of electricity consumed is greater than the amount of solar energy generated (at night or cloudy .), the current will be taken from the grid as usual, or from the storage system (if Power grid outages.

Solar panels will be installed on the roof, which can also be a free facade where there is enough space and get the best sunshine. The area where solar panels are installed is more or less the decisive factor for power supply capacity. On average 1 kWp (Wp: watt peak) solar cells need about 10m ² area; 1 kWp of solar cells produces about 4-5 kWh / day, ie about 150 kWh / month.

The efficiency of solar panels will decrease by 15-20% after 25 - 30 years of use. The life of the MNMT system is about 20 years.

Dr. Le Hoang Thi To said that the MNMT system will be effective in allocating a part or all of the electricity to electricity-using devices in household, agency and enterprise scales instead of electricity grid (reducing the additional charge for national grid).

This will significantly reduce the cost of electricity bills, more importantly, replacing part of the grid with clean, environmentally friendly energy, contributing to protecting and improving the environment.

MNMT system is suitable for areas with pressure drop or power outage.