Singapore, 29 June (Argus) — The Vietnamese government is allowing rooftop solar installations for self-consumption to export a larger portion of their generation to the grid, state-owned utility Vietnam Electricity has said.
The government raised the previous 20pc cap for grid exports to 50pc of output, according to a policy update released on 26 June. Up to the end of 2030, more than 50pc can be sold if the power network can safely absorb additional capacity.
Vietnam has been pushing for higher rooftop solar installation rates to bolster energy security. Selling excess power can increase the financial viability of these assets.
Eligible solar projects include rooftop assets connected to the grid, those on public infrastructure and those in regions with microgrids outside the main network. Power output from energy storage systems charged by rooftop solar is also eligible.
For mountain, border and island regions not connected to the grid, there is no cap on rooftop solar power exports.
Vietnam in March set targets for 10pc of public offices and households nationwide to install rooftop solar power for self-consumption, as part of a 2026-30 plan.
The country is bracing for heat and drought because of the El Nino weather pattern, which can increase electricity demand for cooling and reduce hydropower output.
Hydropower made up 31pc of Vietnam’s generation in 2025, the second highest after coal at 44pc, government records show.
Vietnam is targeting up to 73GW of solar capacity by 2030-35, up from about 19GW for solar and 6GW for wind in 2025, according to data from the International Renewable Energy Agency.
Argus last assessed Vietnamese 2026-vintage solar I-RECs at $/MWh on 25 June.
By Liang Lei
