Yala, Thailand, situated at 6.5409° N, 101.2806° E, offers a promising location for solar energy generation throughout the year. Located in the tropics, this area experiences consistent sunlight and is characterized more by wet and dry seasons than traditional meteorological seasons.

Seasonal Solar Performance

Solar panel performance in Yala varies slightly across the year:

• Spring: 6.24 kWh/day per kW installed (peak performance)
• Summer: 5.62 kWh/day per kW installed
• Winter: 5.12 kWh/day per kW installed
• Autumn: 4.90 kWh/day per kW installed (lowest performance)

These figures indicate a relatively stable solar energy production throughout the year, with spring being the most productive season.

Optimal Panel Positioning

For fixed panel installations in Yala, the ideal tilt angle to maximize year-round solar production is 5 degrees facing South. This slight tilt helps optimize energy capture across all seasons, accounting for the location's proximity to the equator and the Earth's elliptical orbit.

Environmental Considerations

While Yala's tropical climate is generally favorable for solar energy production, there are some environmental factors to consider: 1. Rainfall: Yala experiences a monsoon season, typically from October to December. Heavy rainfall can temporarily reduce solar panel efficiency. Installing panels at the optimal angle helps water runoff and prevents debris accumulation. 2. Humidity: High humidity levels can lead to condensation on panels, potentially affecting performance. Using high-quality, weather-resistant panels and ensuring proper ventilation can mitigate this issue. 3. Dust and debris: The dry season may lead to increased dust accumulation on panels. Regular cleaning and maintenance can help maintain optimal performance.

Conclusion

Overall, Yala presents an ideal location for year-round solar energy production. With proper installation techniques and regular maintenance, the environmental factors can be effectively managed, ensuring consistent and efficient solar power generation throughout 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 88 locations across Thailand. This analysis provides insights into each city/location's potential for harnessing solar energy through PV installations.

Link: Solar PV potential in Thailand by location

Solar output per kW of installed solar PV by season in Yala

Seasonal solar PV output for Latitude: 6.5409, Longitude: 101.2806 (Yala, Thailand), 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 5° South in Yala, Thailand

To maximize your solar PV system's energy output in Yala, Thailand (Lat/Long 6.5409, 101.2806) throughout the year, you should tilt your panels at an angle of 5° 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 Yala, Thailand

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 Yala, Thailand. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 5° South tilt angle throughout the year.

Overall Best Summer Angle	Overall Best Autumn Angle	Overall Best Winter Angle	Overall Best Spring Angle
9° North in Summer	12° South in Autumn	21° South in Winter	0° 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 Yala, Thailand

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 Yala, Thailand.

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 Yala, Thailand

The topography around Yala, Thailand, located at approximately 6.5409 degrees north latitude and 101.2806 degrees east longitude, is characterized by a diverse landscape that includes both lowland and upland areas. The region is part of the southern Thai peninsula, which features a mix of coastal plains, rolling hills, and mountainous terrain. In the immediate vicinity of Yala, the terrain is predominantly flat to gently undulating, with some low-lying areas prone to seasonal flooding. As you move away from the city center, the landscape gradually becomes more varied. To the west and northwest, the terrain begins to rise, transitioning into foothills that eventually lead to the Sankalakhiri mountain range, which forms a natural border between Thailand and Malaysia. To the east and southeast of Yala, the land remains relatively flat, with expansive agricultural areas and rubber plantations. This region is part of the broader coastal plain that extends towards the Gulf of Thailand. The southern part of Yala province features a combination of lowland areas and scattered hills, creating a patchwork of different elevations and land uses.

Suitable Areas for Large-Scale Solar PV

When considering locations for large-scale solar photovoltaic (PV) installations near Yala, several factors come into play, including topography, land availability, and solar irradiance. The most suitable areas for such projects would likely be found in the following regions: The eastern and southeastern plains of Yala province offer promising potential for solar PV development. These areas benefit from relatively flat terrain, which simplifies construction and minimizes the need for extensive land preparation. The open agricultural lands in this region could potentially be repurposed or shared with solar installations, providing an additional source of income for local communities. Some of the gently sloping areas to the west and northwest of Yala city might also be suitable for solar PV projects. While these locations may require some terraforming, they often receive good sun exposure due to their elevated position. However, care should be taken to avoid areas with steep slopes or dense forest cover, which would increase development costs and environmental impact. The southern parts of Yala province, where the landscape alternates between flat areas and low hills, could offer a mix of potential sites for solar PV installations. The flatter portions would be easier to develop, while some hillsides with favorable orientation towards the sun might also be considered, provided they are not too steep or ecologically sensitive. It's important to note that while these areas may be topographically suitable, other factors such as grid connectivity, local regulations, and environmental considerations would need to be carefully evaluated before proceeding with any large-scale solar PV project in the region.

Thailand solar PV Stats as a country

Thailand ranks 26th in the world for cumulative solar PV capacity, with 3,049 total MW's of solar PV installed. This means that 2.90% of Thailand's total energy as a country comes from solar PV (that's 29th in the world). Each year Thailand is generating 44 Watts from solar PV per capita (Thailand ranks 54th in the world for solar PV Watts generated per capita). [source]

Are there incentives for businesses to install solar in Thailand?

Yes, there are several incentives for businesses wanting to install solar energy in Thailand. The Thai government offers a number of tax incentives and subsidies for businesses that install solar energy systems. These include a 30% corporate income tax deduction on the cost of installing solar panels, as well as an exemption from import duties on certain components used in the installation process. Additionally, businesses can benefit from net metering policies which allow them to sell excess electricity generated by their solar system back to the grid at a premium rate. Finally, businesses may also be eligible for grants and other financial assistance from various government agencies and private organizations.

Do you have more up to date information than this on incentives towards solar PV projects in Thailand? Please reach out to us and help us keep this information current. Thanks!

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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.