There will be a price to buy excess solar power, which can offset EVN.

The Ministry of Industry and Trade is assigned to study a mechanism for EVN to buy excess rooftop solar power at a reasonable price, which can be offset when people buy it back from the electricity industry - Photo: NGOC HIEN

The Government Office has just issued a notice of the conclusion of Deputy Prime Minister Tran Hong Ha on the development and promulgation of a decree regulating mechanisms and policies to encourage the development of self-produced and self-consumed rooftop solar power.

Excess rooftop solar power can offset EVN

In the draft on self-produced and self-consumed rooftop solar power, the Ministry of Industry and Trade proposes that this solar power source is only consumed on-site, not sold to other organizations or individuals or transmitted to the national grid. Non-grid rooftop solar power will not be limited in development. In case of connection, it will not exceed the allocated capacity in the Power Plan VIII (2,600 MW).

The Government leader requested the Ministry of Industry and Trade to clarify the concept of self-production and self-consumption in the direction of producing basically for use. For excess electricity, if batteries are installed to store and store electricity, the Vietnam Electricity Group (EVN) will study and propose to buy electricity at a reasonable price, especially the price of electricity during peak hours.

The Deputy Prime Minister requested that in case there is no battery to store electricity, EVN will buy at the lowest price on the electricity market that EVN buys from other electricity sellers. The excess electricity that EVN buys back can be considered for compensation when people buy electricity from EVN.

In addition, the Deputy Prime Minister also requested the Ministry of Industry and Trade to study and calculate the electricity price with two components: The electricity price when there is no sun, during peak hours must be different from the electricity price when there is strong sunlight, or the price for cases with devices and batteries to store electricity must be different from cases without electricity storage.

At the same time, it is necessary to study the solution of using Zero Export (preventing transmission to the grid - PV) depending on each object and installed capacity of the rooftop solar power system but must ensure some principles...

Research on policies to support people to install solar power

The Deputy Prime Minister also requested that it is necessary to clearly demonstrate the incentive mechanism and support policies for those who invest in rooftop solar power for use, including the installation of power storage equipment. There should be a support plan for prices, taxes, interest rates, installation costs, etc.

The conclusion stated that the development of self-produced and self-consumed rooftop solar power will reduce the pressure on the state budget to invest in new power sources, so it is necessary to further study this policy. The Deputy Prime Minister said that people who install self-produced and self-consumed solar power systems will receive State support from this source to encourage and ensure long-term benefits.

In addition, the Ministry of Industry and Trade is assigned to develop a set of sample documents with specific regulations on standards, technical regulations, and state management requirements in encouraging the development of rooftop solar power...

Talking to Tuoi Tre Online , Mr. Pham Phuoc Binh - Director of Bincon Joint Stock Company - said that installing solar power combined with storage batteries will solve the disadvantage of renewable energy in general and solar power in particular, which is instability.

Because this power source fluctuates erratically, it will cause difficulties for EVN in regulating the power system, but when there is a storage battery, this difficulty will be partly solved. However, Mr. Binh said that it is still necessary to pay attention to technical issues for safe operation and reasonable investment.

Meanwhile, the director of an energy company in Ho Chi Minh City said that it is important to regulate the installation of a storage ratio appropriate to the total installed capacity to ensure system stability.

"It is necessary to regulate the battery storage installation rate at about 10-20% of the total installed capacity so that the system will always use this power source when it is cloudy or rainy, which will reduce the impact on the national grid while EVN also reduces the pressure on dispatching," he said.

Source: https://tuoitre.vn/se-co-gia-mua-dien-mat-troi-du-thua-co-the-bu-tru-cho-evn-20240626164411797.htm