Customers installing 100 kWp (equivalent to 14,600 kWh / year) of rooftop solar power will save more than VND ...
Customers installing 100 kWp (equivalent to 14,600 kWh / year) of rooftop solar power will save more than VND 400 million / year.
Ho Chi Minh City Power Corporation (EVNHCMC) said that customers who install rooftop solar PV can invest in many forms. Specifically, customers can invest by themselves or get preferential loans from banks to invest.
In particular, customers can cooperate with investors, renting roofs to investors to exploit the potential of rooftop solar panels.
Maximize exploit potential
Speaking at the seminar on solutions for developing rooftop solar panels in Ho Chi Minh City, Mr. Bui Trung Kien, Deputy General Director of Ho Chi Minh City Power Corporation, said that Ho Chi Minh City is one of the centers of urban development with Population density and economic growth rate are very high. Accompanying this development is the need for electricity by household, commercial and industrial groups.
In stead, climate change, the greenhouse effect since the impact of hot weather and the use of refrigeration equipment to meet the daily needs of households and vehicles. , trade centers ... have made the electricity consumption increase significantly in recent years. This affects the costs of households and businesses.
From this situation, EVNHCMC has deployed many activitiesto enhance the more efficient mobilization of rooftop solar panels installation. Specifically, the unit cooperates with the Management Board of Export Processing and Industrial Parks in Ho Chi Minh City (Hepza) and the Association of Industrial Parks in Ho Chi Minh City (HBA) to deploy solar power propaganda activities in export processing zones, industrial zones.
At the same time, EVNHCMC also signed a memorandum of cooperation with solar power solution providers to deploy preferential product packages to businesses and customers using electricity.
According from Mr. Bui Trung Kien , as of the end of May 2020, the whole city has 7,341 works with a total installed capacity of 94.49 MWp. The amount of electricity generated from the grid from 2017 to now is 33.33 million kWh (excluding the electricity output used by customers). In which, there are 102 rooftop solar projects with capacity from 100 kWp to 1,000 kWp connected to the city grid with a total capacity of 37.23 MWp.
With the potential to develop the rooftop solar panels system of more than 6,000 MWp, customers will be supported by preferential loan packages, the government will set up a better support mechanism ... then we will reach the set targets. Specifically, the national energy development strategy of Vietnam until 2030-2045, in which the ratio of renewable energy sources to the maximum capacity of the electricity system reaches at least 15% (equivalent to over 1,000 MWp). in 2025 and from 1,330 MWp in 2030).
Specially, the national energy development strategy of Vietnam until 2030-2045, in which the ratio of renewable energy sources to the maximum capacity of the system reaches at least 15% (equivalent to over 1,000 MWp) in 2025 and from 1,330 MWp in 2030.
Open investment method
In many solutions to support customers, Bach Khoa Solar Energy Company (SolarBK) has proposed many methods.
Accordingly, for business customers conclude roof area of 1,000-3,000 m2, the 100-300 kWp can be able installed. This form of investment, enterprises are autonomous with the whole system and firms invest 100% of the system value, with an investment cost of VND 17-20 million / kWp.
The benefits from direct investment will save more than VND 400 million / year (for 100 kWp), saving over VND 800 million if investing about 300 kWp.
In addition, SolarBK also offers ESCO investment method (SolarESCO), which means co-investing with enterprises, contributing 70% -100% capital.
Where by, SolarESCO will be responsible for the design, construction, installation of the entire system and system maintenance and operation. However, this enterprise must have a roof area of 3,000-10,000 m2. After a period of cooperation, SolarESCO will hand over to businesses.
Meanwhile, VES JSC offers preferential policies for electricity industry officials and workers, reducing 3% -5% of the contract value for customers and loan support up to 70%.
Similarly, Thanh Thanh Cong Group (TTC) also offers three solutions for customers including: Customers invest 100% of the value, TTC will cooperate with customers (TTC will sell electricity to customers at lower prices than EVN and customers will own the solar rooftop system after the lease term expires); The customer leases the infrastructure to TTC, after which the customer also owns the DMAM system after the lease expires.
Another solution that is quite optimal for customers is to cooperate with Electricity and Finance Joint Stock Company. Specifically, this unit supports customers to borrow up to 70% of the total system investment and no more than 12 million VND / kWp, the maximum loan period of seven years.
Should we recycle solar panels?
Assoc.Prof. Dr. Vo Viet Cuong, Department of Electrical and Electronics Engineering, Ho Chi Minh City University of Technical Education, had a specific assessment on the environmental impact of the solar panel recycling process. Accordingly, Dr. Cuong said that the European Union countries have made moves to pay attention to recycling solar batteries.
Particular, in Asia and Korea has established a recycling facility for PV module waste. In the US, Malaysia has established first solar plants using recycling methods with a recovery rate of 95% for Cd and 90% for glass. Dr. Cuong explained that the station's normal capacity of 2.6 MWp causes annual emissions of 1,480-2,220 tons of CO2. This can be offloaded by recycling 186 tons of solar PV waste.
Specifically, the total amount of recycled energy will be lower than the total to produce about 12-81 MJ/m2, greenhouse gas emissions can be reduced by 2.5 kg CO2 / m2 compared to the amount of greenhouse gas emissions of new production process.
Accordingly, Vietnam and other solar battery suppliers need to consider the construction of solar cell recycling facilities in the near future.
Via Phap Luat