Solar energy in Cần Thơ, Vietnam
Average irradiation 5.11 kWh/m²/day · ~1492 kWh per kWp per year
Monthly solar irradiation & temperature in Cần Thơ (NASA POWER)
| Month | Irradiation (kWh/m²/day) | Avg temp (°C) | Est. production per kWp (kWh) |
|---|---|---|---|
| Jan | 4.96 | 26.0 | 121 |
| Feb | 5.47 | 27.6 | 133 |
| Mar | 5.74 | 29.4 | 140 |
| Apr | 5.86 | 30.5 | 142 |
| May | 5.36 | 29.3 | 130 |
| Jun | 5.02 | 27.7 | 122 |
| Jul | 4.83 | 27.0 | 118 |
| Aug | 4.87 | 26.9 | 118 |
| Sep | 4.82 | 26.8 | 117 |
| Oct | 4.80 | 26.6 | 117 |
| Nov | 4.81 | 26.3 | 117 |
| Dec | 4.76 | 25.7 | 116 |
Solar potential of Cần Thơ explained
Cần Thơ receives an average of 5.11 kilowatt-hours of solar energy per square metre per day, measured over four decades of satellite observation. In practical terms, every kilowatt-peak of installed PV capacity yields about 1492 kWh of electricity per year here, assuming a well-oriented system with a typical 80% performance ratio. This places Cần Thơ among the stronger solar locations globally — comparable to southern Spain or California.
Frequently asked questions
Is solar worth it in Cần Thơ?
With 5.11 kWh/m²/day of average irradiation, a 1 kWp system in Cần Thơ produces roughly 1492 kWh per year. That is an excellent solar resource — payback periods are typically among the shortest worldwide.
How much electricity would a 5 kW system produce in Cần Thơ?
Approximately 7,000 kWh per year — enough to cover a large share of a typical household's consumption.
What data is this based on?
Long-term satellite observations from NASA POWER (1981–present) and the PVGIS SARAH3 database, assuming a performance ratio of 80%.
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