Sa Kaeo, Thailand, situated at 13.9195° N, 102.018° E, presents a favorable location for solar energy generation throughout the year. This tropical setting benefits from consistent sunlight, with seasons primarily characterized by wet and dry periods rather than temperature extremes.

Seasonal Solar Performance

The solar energy potential in Sa Kaeo remains relatively stable across all seasons, with only minor fluctuations: Spring sees the highest output at 5.90 kWh/day per kW installed, closely followed by Winter at 5.87 kWh/day. Summer production is also strong at 5.81 kWh/day, while Autumn experiences a slight dip to 4.85 kWh/day. This consistency allows for reliable energy generation year-round, with the most productive periods occurring during the drier months of Winter and early Spring.

Optimal Panel Positioning

For fixed solar panel installations in Sa Kaeo, the ideal tilt angle is 13 degrees facing South. This angle maximizes total year-round energy production by optimizing exposure to the sun's rays as its position changes throughout the year.

Environmental Considerations

While Sa Kaeo's climate is generally conducive to solar energy production, there are some environmental factors to consider: 1. Rainfall: The region experiences a monsoon season, typically from May to October. Heavy rains can temporarily reduce solar efficiency and may require more frequent panel cleaning. 2. Cloud cover: Increased cloud cover during the wet season can slightly diminish solar output, particularly in Autumn. 3. Dust and pollution: Agricultural activities and occasional haze from regional biomass burning can deposit particulates on solar panels, potentially reducing their efficiency.

Preventative Measures

To mitigate these environmental challenges and ensure optimal solar energy production, consider the following measures: 1. Install a robust cleaning system or schedule regular manual cleaning to remove dust, dirt, and other debris from panels. 2. Use high-quality, weather-resistant solar panels designed to perform well in tropical climates. 3. Implement a slight increase in panel tilt during the rainy season to promote natural cleaning by rainfall. 4. Consider a tracking system to maximize sun exposure throughout the day, potentially offsetting losses during cloudy periods. By addressing these factors, Sa Kaeo's solar installations can maintain high efficiency and capitalize on the region's abundant sunlight, making it an excellent location for year-round solar energy production.

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 Sa Kaeo

Seasonal solar PV output for Latitude: 13.9195, Longitude: 102.018 (Sa Kaeo, 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 13° South in Sa Kaeo, Thailand

To maximize your solar PV system's energy output in Sa Kaeo, Thailand (Lat/Long 13.9195, 102.018) throughout the year, you should tilt your panels at an angle of 13° 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 Sa Kaeo, 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 Sa Kaeo, Thailand. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 13° South tilt angle throughout the year.

Overall Best Summer Angle	Overall Best Autumn Angle	Overall Best Winter Angle	Overall Best Spring Angle
2° North in Summer	20° South in Autumn	29° South in Winter	7° 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 Sa Kaeo, 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 Sa Kaeo, 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 Sa Kaeo, Thailand

The topography around Sa Kaeo, Thailand, is characterized by a mix of gently rolling hills and flat plains. This area is part of the larger Khorat Plateau, which covers much of northeastern Thailand. The landscape is generally low-lying, with elevations ranging from about 50 to 200 meters above sea level.

The terrain in and around Sa Kaeo consists of agricultural lands, scattered forests, and some wetlands. The region experiences a tropical savanna climate, with distinct wet and dry seasons. This climate, combined with the relatively flat terrain, has made the area suitable for agriculture, particularly rice cultivation.

When considering areas nearby that would be most suited to large-scale solar PV (photovoltaic) installations, several factors come into play. The ideal locations would be flat or gently sloping areas with minimal shading from trees or hills. These sites should also have good access to existing infrastructure, such as roads and power transmission lines.

Based on these criteria, the most suitable areas for large-scale solar PV near Sa Kaeo would likely be found in the open agricultural lands surrounding the city. These areas often feature expansive, unobstructed spaces that receive ample sunlight throughout the year. The flat terrain of former rice paddies or other crop fields could be particularly well-suited for solar panel installation.

It's worth noting that while the entire region around Sa Kaeo receives good solar radiation, specific site selection would require detailed surveys to assess factors such as local topography, land ownership, proximity to power infrastructure, and environmental considerations. Additionally, areas that are not prime agricultural land or ecologically sensitive would be preferable to avoid conflicts with food production or conservation efforts.

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.