The Government has just issued Decree 243/2026/ND-CP dated June 26, 2026 amending and supplementing a number of articles of Decree No. 57/2025/ND-CP dated March 3, 2025 stipulating the mechanism for direct electricity purchase and sale between renewable energy power generation units and large electricity users and Decree No. 58/2025/ND-CP dated March 3, 2025 detailing a number of articles of the Electricity Law on the development of renewable energy and new energy power.
Accordingly, self-produced and self-consumed rooftop solar power sources are sold for excess electricity output according to the provisions of this Decree, including:
- Self-produced and self-consumed rooftop solar power of households using individual houses;
- Self-produced and self-consumed rooftop solar power connected to the national power system at low voltage levels;
- Self-produced and self-consumed rooftop solar power sources installed in mountainous, border, and island areas with power grids but not yet connected to the national power system;
- Self-produced and self-consumed rooftop solar power installed at the project is public property...
The excess electricity output purchased and sold between the excess electricity buyer and the excess electricity seller includes the excess electricity output of the rooftop solar power source and the electricity output from the electricity storage system charged from the rooftop solar power source (if any).
The excess electricity output is determined at the output of the inverter and is purchased and sold according to the following regulations:
Surplus electricity output is purchased and sold according to the agreement between the two parties but does not exceed 50% of the electricity output generated at the output of rooftop solar power sources according to radiation intensity. (According to the old regulations in Decree 58/2025/ND-CP, this ratio is 20%).
From the date this decree takes effect until the end of December 31, 2030, the two parties are agreed to buy and sell excess electricity output at a rate higher than 50% of electricity output at the output of rooftop solar power sources according to radiation intensity in cases where the power grid in the connection area ensures receiving capacity, the purchase and sale of excess electricity output meets the conditions for safe operation of the power grid and the operating method of the power system according to regulations.
For mountainous, border, and island areas that have not been supplied with electricity from the national power system, there is no limit on the excess electricity output to be purchased and sold. The excess electricity output to be paid is the entire electricity generated into the power grid by the Power Purchaser being measured at the meter. From the time this area is supplied with electricity from the national power system, the purchase and sale of excess electricity output shall be carried out according to the above regulations depending on the time of application.
Decree No. 243/2026/ND-CP also clearly states: The purchase and sale price of surplus electricity is the average electricity market price in the immediately preceding year announced by the electricity market transaction operator, calculated in Vietnamese Dong/kWh.
In case the average electricity market price of the previous year is higher than the maximum price of the electricity price framework for solar and land-based electricity without corresponding storage batteries according to the application region, the purchase and sale price of excess electricity output is determined by the maximum price (excluding value-added tax) of that electricity price framework.
Organizations and individuals selling excess electricity output must carry out procedures for issuing electricity operating licenses, except for cases where they are exempt from electricity operating licenses as prescribed.
