Solar PV Analysis of Da Nang, Vietnam
Da Nang, Vietnam is a fairly good location for generating solar energy all-year-round due to its tropical climate with consistent sunlight. The amount of electricity that can be produced from each kilowatt (kW) of installed solar panels varies by season. In summer and spring, the output is higher at about 6.67 and 6.87 kilowatt-hours (kWh) per day respectively, while in autumn it drops slightly to around 4.32 kWh/day and in winter it's the lowest at approximately 3.80 kWh/day.
Given these figures, the best times of year to generate solar power in Da Nang would be during the spring and summer seasons when sunlight is most abundant.
For fixed panel installations at this location, tilting them at an angle of 12 degrees towards the South will maximize their total yearly production from solar photovoltaic (PV), which refers to a method for converting sunlight into electricity.
However, there may be certain factors that could potentially hinder optimal solar production in Da Nang such as heavy rainfall during wet seasons or cloud cover blocking sunlight exposure on some days. Additionally, dust accumulation on panels can reduce their efficiency over time.
To mitigate these issues:
1) Regular cleaning and maintenance of panels are necessary especially after heavy rainfalls or dusty periods.
2) Installing tracking mechanisms that adjust panel angles according to sun position could help ensure maximum light absorption throughout the day.
3) To deal with cloudy days or rainy seasons where less sunlight might reach your panels; you might consider installing more efficient but also typically more expensive types of PV systems like monocrystalline silicon-based ones which perform better under low-light conditions compared to others like polycrystalline silicon-based ones.
4) Using battery storage systems can help store excess energy generated during peak sun hours for use later when sunshine isn't adequate enough for power generation.
In summary: While there are challenges, with the right setup and maintenance, Da Nang can be a productive location for solar energy generation.
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 Da Nang
Seasonal solar PV output for Latitude: 16.0685, Longitude: 108.2215 (Da Nang, 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 12° South in Da Nang, Vietnam
To maximize your solar PV system's energy output in Da Nang, Vietnam (Lat/Long 16.0685, 108.2215) throughout the year, you should tilt your panels at an angle of 12° 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 Da Nang, 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 Da Nang, Vietnam. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 12° South tilt angle throughout the year.
| Overall Best Summer Angle | Overall Best Autumn Angle | Overall Best Winter Angle | Overall Best Spring Angle |
|---|---|---|---|
| 0° in Summer | 21° South in Autumn | 30° South in Winter | 9° 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 Da Nang, 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 Da Nang, 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 Da Nang, Vietnam
Da Nang, Vietnam is located on the coast of the South China Sea and is characterized by a mix of flat coastal plains and hilly, mountainous terrain. The city itself lies mostly on flat land, with some undulating hills to its north and west. To the south-east lie the Annamite Range mountains.
Regarding large-scale solar PV installations, they require areas with high solar irradiance levels as well as ample open space for installation. Flat lands or gently sloping terrains are generally more favorable due to ease of construction and maintenance.
Areas around Da Nang that could be suitable for large-scale solar PV include:
1. Coastal Plains: Areas along Da Nang's coastline could be suitable given their relatively flat topography which would allow easy installation of solar panels.
2. Rural Outskirts: Open spaces in rural outskirts that are not heavily forested or used for agriculture can also be potential sites for large scale Solar PV projects.
3. Industrial Zones: Large industrial zones often have unused rooftop space which can host significant amounts of photovoltaic capacity without requiring additional land area.
However, it should be noted that suitability will also depend upon factors like local weather conditions (solar irradiance), availability & cost of land, proximity to power transmission lines or substations (for feeding power into grid), environmental impact assessments etc.
It's recommended to conduct a detailed feasibility study including site survey & assessment before deciding upon any location for setting up a large scale Solar PV project.
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!
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Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Sunday 9th of June 2024
Last Updated: Monday 21st of July 2025
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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.
