The location at Thai Nguyen, Thái Nguyên Province, Vietnam is fairly good for generating energy through solar panels year-round due to its tropical climate which provides consistent sunlight throughout most of the year. However, there are variations in energy production depending on the season.

During summer, each kilowatt (kW) of installed solar can produce about 5.82 kilowatt-hours (kWh) per day. In autumn and spring, this falls to around 3.97 kWh/day per kW of installed solar. The least productive time is winter when you can expect about 3.02 kWh/day per kW.

So if we're looking at ideal times of the year for solar energy generation in Thai Nguyen, Thái Nguyên Province, summer would be the best followed by autumn and spring with winter being less optimal.

For fixed panel installations at this location, tilting the panels towards an angle of 18 degrees South will help maximize total yearly production from these solar panels.

As for local factors that could potentially impede solar production here:

1) Seasonal weather changes: As mentioned above, although there's consistent sunlight all-year-round due to its tropical climate; rainy seasons or cloudy days may affect power output as they reduce sun exposure on your panels.

2) Dust and dirt accumulation: Over time dust and dirt can build up on your panels reducing their efficiency

To counteract these issues:

1) Weather - Unfortunately there's not much one can do about weather conditions but it's important to bear in mind that even during cloudy or rainy days some electricity will still be produced just not as much compared to sunny days.

2) Dust/Dirt - Regular cleaning/maintenance schedules should be set up so any accumulated dust or dirt is removed ensuring maximum efficiency from your panels.

Overall while there might be some challenges related to seasonal changes and maintenance requirements; with proper planning and care Thai Nguyen offers a favorable environment for generating renewable energy via Solar PV systems throughout most parts of the year.

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 Thai Nguyen

Seasonal solar PV output for Latitude: 21.5941, Longitude: 105.8432 (Thai Nguyen, 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:

Average 5.82kWh/day in Summer.

Average 3.97kWh/day in Autumn.

Average 3.02kWh/day in Winter.

Average 3.97kWh/day in Spring.

Ideally tilt fixed solar panels 18° South in Thai Nguyen, Vietnam

To maximize your solar PV system's energy output in Thai Nguyen, Vietnam (Lat/Long 21.5941, 105.8432) throughout the year, you should tilt your panels at an angle of 18° 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.

At Latitude: 21.5941, Longitude: 105.8432, the ideal angle to tilt panels is 18° South

Seasonally adjusted solar panel tilt angles for Thai Nguyen, 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 Thai Nguyen, Vietnam. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 18° South tilt angle throughout the year.

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 Thai Nguyen, 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 Thai Nguyen, Vietnam.

Our calculation method

1. Solar Position:
   We determine the Sun's position on the Winter solstice using the location's latitude and solar declination.
2. Shadow Projection:
   We calculate the shadow length cast by panels using trigonometry, considering panel tilt and the Sun's elevation angle.
3. 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 Thai Nguyen, Vietnam

Thai Nguyen, Vietnam is located in the northeastern part of the country. The topography of this region is characterized by a combination of mountains, hills, and plains. It has a tropical monsoon climate with high humidity levels throughout the year.

The mountainous areas are generally not suitable for large-scale solar PV installations due to their steep slopes and dense vegetation. However, the flat plains and gently rolling hills could potentially accommodate such facilities. These areas typically have good sun exposure which is necessary for efficient solar energy production.

In terms of specific locations near Thai Nguyen for large-scale solar PV projects, it would be best to consider regions that are relatively flat with minimal shading from surrounding features or structures. Areas like Dong Hy district or Pho Yen town which have extensive agricultural land could be potential sites as they provide ample space for installation and get plenty sunlight throughout the year.

However, before proceeding with any project it's important to conduct an in-depth feasibility study that includes factors like local weather patterns (cloud cover and rainfall), availability of infrastructure (for connecting to power grid), environmental impact assessment etc., as these can significantly influence project viability and performance.

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

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.

©Copyright Aaron Robinson and profileSOLAR.com 2019-2025

Home
Solar: United States
Solar: Worldwide
Solar Panel Tilt Angle
Login

Privacy
Disclaimer
Impressum
Contact Us