Rooftop solar in Vietnam typically costs about VND 29,700,000 per kW installed, and household electricity is around VND 2,340 per kWh. The average sunshine is about 4.6 peak sun hours a day.
As a rough example, a 5 kW home system would cost about VND 170,800,000, make around 6,296 kWh a year, and save about VND 14,733,225 a year. That is a payback of roughly 11.6 years.
Rooftop solar
For homes and businesses. Size, cost, savings and payback.
Open rooftop calculatorSolar plant
For larger projects. Project returns and break-even price.
Open plant calculatorThese are typical estimates, not quotes. Replace them with real quotes before you decide anything.