Can Tho, Vietnam, located at 10.0361° N, 105.7941° E, presents a favorable environment for solar energy generation throughout the year. This tropical location benefits from consistent sunlight, with seasons primarily characterized by wet and dry periods rather than temperature extremes.
Seasonal Solar Performance
The solar energy output in Can Tho remains relatively stable across all seasons, with only minor fluctuations. Spring emerges as the most productive season, generating an impressive 6.06 kWh per day for each kilowatt of installed solar capacity. Summer and winter follow closely behind, producing 5.52 kWh/day and 5.48 kWh/day, respectively. Autumn sees a slight dip but still maintains a respectable output of 4.92 kWh/day.Optimal Installation Angle
For fixed solar panel installations in Can Tho, the ideal tilt angle to maximize year-round energy production is 9 degrees facing South. This angle takes into account the city's proximity to the equator and the sun's position throughout the year, ensuring optimal exposure to sunlight across all seasons.Environmental Considerations
While Can Tho's climate is generally conducive to solar energy production, there are a few environmental factors to consider: 1. Rainfall: The region experiences a monsoon season, typically from May to November, which could potentially reduce solar output due to cloud cover and rain. 2. Humidity: High humidity levels, common in tropical climates, may lead to condensation on solar panels, potentially affecting their efficiency. To mitigate these issues, consider the following preventative measures:- Install high-quality, weather-resistant solar panels designed for tropical climates
- Implement a regular cleaning schedule to remove any dust or debris accumulation
- Use anti-reflective coatings on panels to maximize light absorption, even in overcast conditions
- Ensure proper drainage systems are in place to prevent water accumulation on panels
Note: The Tropics are located between 23.5° North and -23.5° South of the equator.
So far, we have conducted calculations to evaluate the solar photovoltaic (PV) potential in 160 locations across Vietnam. This analysis provides insights into each city/location's potential for harnessing solar energy through PV installations.
Link: Solar PV potential in Vietnam by location
Solar output per kW of installed solar PV by season in Can Tho
Seasonal solar PV output for Latitude: 10.0361, Longitude: 105.7941 (Can Tho, Vietnam), based on our analysis of 8760 hourly intervals of solar and meteorological data (one whole year) retrieved for that set of coordinates/location from NASA POWER (The Prediction of Worldwide Energy Resources) API:
 
Ideally tilt fixed solar panels 9° South in Can Tho, Vietnam
To maximize your solar PV system's energy output in Can Tho, Vietnam (Lat/Long 10.0361, 105.7941) throughout the year, you should tilt your panels at an angle of 9° South for fixed panel installations.
As the Earth revolves around the Sun each year, the maximum angle of elevation of the Sun varies by +/- 23.45 degrees from its equinox elevation angle for a particular latitude. Finding the exact optimal angle to maximise solar PV production throughout the year can be challenging, but with careful consideration of historical solar energy and meteorological data for a certain location, it can be done precisely.
We use our own calculation, which incorporates NASA solar and meteorological data for the exact Lat/Long coordinates, to determine the ideal tilt angle of a solar panel that will yield maximum annual solar output. We calculate the optimal angle for each day of the year, taking into account its contribution to the yearly total PV potential at that specific location.
Seasonally adjusted solar panel tilt angles for Can Tho, Vietnam
If you can adjust the tilt angle of your solar PV panels, please refer to the seasonal tilt angles below for optimal solar energy production in Can Tho, Vietnam. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 9° South tilt angle throughout the year.
| Overall Best Summer Angle | Overall Best Autumn Angle | Overall Best Winter Angle | Overall Best Spring Angle |
|---|---|---|---|
| 6° North in Summer | 16° South in Autumn | 26° South in Winter | 4° South in Spring |
Our recommendations take into account more than just latitude and Earth's position in its elliptical orbit around the Sun. We also incorporate historical solar and meteorological data from NASA's Prediction of Worldwide Energy Resources (POWER) API to assign a weight to each ideal angle for each day based on its historical contribution to overall solar PV potential during a specific season.
This approach allows us to provide much more accurate recommendations than relying solely on latitude, as it considers unique weather conditions in different locations sharing the same latitude worldwide.
Calculate solar panel row spacing in Can Tho, Vietnam
We've added a feature to calculate minimum solar panel row spacing by location. Enter your panel size and orientation below to get the minimum spacing in Can Tho, Vietnam.
Our calculation method
- Solar Position:
We determine the Sun's position on the Winter solstice using the location's latitude and solar declination. - Shadow Projection:
We calculate the shadow length cast by panels using trigonometry, considering panel tilt and the Sun's elevation angle. - Minimum Spacing:
We add the shadow length to the horizontal space occupied by tilted panels.
This approach ensures maximum space efficiency while avoiding shading during critical times, as the Winter solstice represents the worst-case scenario for shadow length.
Topography for solar PV around Can Tho, Vietnam
Can Tho, located in southern Vietnam, sits in the heart of the Mekong Delta region. The topography around Can Tho is characterized by its extremely flat and low-lying terrain. The landscape is dominated by a vast network of rivers, canals, and floodplains, creating a complex water system that defines the area's geography. The elevation in and around Can Tho is generally very low, with most of the land sitting just a few meters above sea level. This flat terrain extends for many kilometers in all directions, creating a seemingly endless expanse of level ground. The Mekong River and its numerous tributaries crisscross the region, forming a intricate web of waterways that have shaped the land over millennia. The soil in the area is predominantly alluvial, deposited by the rivers over time. This rich, fertile soil has made the Mekong Delta one of the most productive agricultural regions in Vietnam. Rice paddies, fruit orchards, and vegetable farms dominate the landscape, interspersed with small villages and towns.
Potential for Large-Scale Solar PV
When considering areas nearby Can Tho for large-scale solar PV installations, several factors come into play. The flat terrain of the Mekong Delta offers some advantages for solar development, as it eliminates the need for extensive land preparation and allows for uniform panel placement. However, the region's susceptibility to flooding and the high water table pose significant challenges. Areas slightly elevated above the flood-prone zones would be more suitable for solar installations. These might include: 1. Agricultural land on the outskirts of Can Tho city, where some slightly higher ground can be found. 2. Areas to the north and northwest of Can Tho, where the terrain begins to rise slightly as it transitions away from the delta. 3. Reclaimed land or artificially elevated areas that have been developed for industrial or agricultural purposes. It's important to note that while the region receives ample sunlight, the high humidity and frequent cloud cover in the tropical climate may impact solar efficiency. Additionally, the valuable agricultural land in the area may create competition for space, making it crucial to carefully select sites that balance solar potential with other land-use considerations. Any large-scale solar PV project in this region would need to incorporate flood mitigation strategies and be designed to withstand the area's unique environmental conditions. This might include elevated mounting systems, robust waterproofing, and drainage solutions to protect the solar infrastructure from the region's frequent inundations.Vietnam solar PV Stats as a country
Vietnam ranks 9th in the world for cumulative solar PV capacity, with 16,660 total MW's of solar PV installed. Each year Vietnam is generating 171 Watts from solar PV per capita (Vietnam ranks 30th in the world for solar PV Watts generated per capita). [source]
Are there incentives for businesses to install solar in Vietnam?
Yes, there are several incentives for businesses wanting to install solar energy in Vietnam. The government has implemented a number of policies and programs to encourage the development of renewable energy sources, including solar energy. These include tax exemptions, preferential loans, and feed-in tariffs for electricity generated from solar power plants. Additionally, the government has established a Renewable Energy Development Fund to provide financial support for projects related to renewable energy sources such as solar power.
Do you have more up to date information than this on incentives towards solar PV projects in Vietnam? Please reach out to us and help us keep this information current. Thanks!
Citation Guide
Article Details for Citation
Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Thursday 17th of April 2025
Last Updated: Thursday 14th of August 2025
Tell Us About Your Work
We love seeing how our research helps others! If you've cited this article in your work, we'd be delighted to hear about it. Drop us a line via our Contact Us page or on X, to share where you've used our information - we may feature a link to your work on our site. This helps create a network of valuable resources for others in the solar energy community and helps us understand how our research is contributing to the field. Plus, we occasionally highlight exceptional works that reference our research on our social media channels.
Feeling generous?
Share this with your friends!

Compare this location to others worldwide for solar PV potential
The solar PV analyses available on our website, including this one, are offered as a free service to the global community. Our aim is to provide education and aid informed decision-making regarding solar PV installations.
However, please note that these analyses are general guidance and may not meet specific project requirements. For in-depth, tailored forecasts and analysis crucial for feasibility studies or when pursuing maximum ROI from your solar projects, feel free to contact us; we offer comprehensive consulting services expressly for this purpose.
Helping you assess viability of solar PV for your site
Calculate Your Optimal Solar Panel Tilt Angle: A Comprehensive Guide
Enhance your solar panel's performance with our in-depth guide. Determine the best tilt angle using hard data, debunk common misunderstandings, and gain insight into how your specific location affects solar energy production.




