Bang Sue, Bangkok, Thailand, located at 13.7994° N, 100.5337° E, offers a promising environment for solar energy generation throughout the year. Situated in the tropics, this location benefits from consistent sunlight and experiences wet and dry seasons rather than traditional four-season cycles.

Solar Energy Potential

The solar energy output at Bang Sue demonstrates remarkable consistency across the meteorological seasons. Spring yields the highest production at 6.05 kWh per day for each kilowatt of installed solar capacity. Winter follows closely with 5.97 kWh/day, while summer produces 5.91 kWh/day. Autumn sees a slight dip but still maintains a respectable 5.02 kWh/day. This data indicates that Bang Sue is an excellent location for year-round solar energy generation. The relatively small variation between seasons suggests that solar installations in this area can provide steady and reliable power output throughout the year.

Optimal Panel Tilt

For fixed solar panel installations in Bang Sue, Bangkok, the ideal tilt angle to maximize year-round production is 13 degrees facing South. This angle has been calculated taking into account the location's latitude, daily solar elevation angles, and weighted by NASA's solar irradiance data.

Environmental Considerations

While Bang Sue's tropical climate is generally favorable for solar energy production, there are some environmental factors to consider: 1. Heavy rainfall during the monsoon season (typically May to October) could temporarily reduce solar output. 2. High humidity levels may lead to increased dust accumulation on panels. 3. Occasional tropical storms or cyclones could pose risks to solar installations. To mitigate these challenges, several preventative measures can be implemented:

• Install panels at the optimal tilt angle to promote natural cleaning during rainfall.
• Use high-quality, weather-resistant solar panels designed for tropical climates.
• Implement regular cleaning schedules, especially during drier periods.
• Ensure robust mounting systems capable of withstanding strong winds.
• Consider microinverter systems to minimize the impact of partial shading.

By addressing these factors, solar installations in Bang Sue can maintain high efficiency and durability, making the most of the location's excellent solar potential 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 Bang Sue

Seasonal solar PV output for Latitude: 13.7994, Longitude: 100.5337 (Bang Sue, 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 Bang Sue, Thailand

To maximize your solar PV system's energy output in Bang Sue, Thailand (Lat/Long 13.7994, 100.5337) 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 Bang Sue, 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 Bang Sue, 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 Bang Sue, 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 Bang Sue, 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 Bang Sue, Thailand

The area around Bang Sue, Thailand, is predominantly flat and urban, typical of the greater Bangkok metropolitan region. Bang Sue is situated in the northern part of Bangkok, close to the Chao Phraya River. The terrain in this area is part of the vast Chao Phraya River delta, which is characterized by low-lying alluvial plains.

The immediate surroundings of Bang Sue consist mainly of densely populated urban areas with a mix of residential, commercial, and industrial developments. There are few significant natural elevations or notable topographical features in the vicinity. The landscape is largely shaped by human activity, with a network of roads, buildings, and infrastructure dominating the area.

As you move further away from Bang Sue, especially towards the outskirts of Bangkok, the urban density gradually decreases, and you may find more open spaces and agricultural land. However, the overall topography remains relatively flat, with only subtle variations in elevation.

Regarding areas nearby that would be most suited for large-scale solar PV (photovoltaic) installations, the urban nature of Bang Sue and its surroundings presents some challenges. Ideal locations for solar farms typically require large, unobstructed areas with good sun exposure. Given these factors, the most suitable areas for large-scale solar PV would likely be found outside the immediate vicinity of Bang Sue, in the less densely populated regions surrounding Bangkok.

Some potential areas that might be more suitable for solar PV installations include:

• Agricultural lands to the north and east of Bangkok, where there are more open spaces and fewer tall buildings to cast shadows.
• Industrial zones on the outskirts of the city, which may have large, flat rooftops suitable for solar panel installation.
• Reclaimed or unused land in the provinces surrounding Bangkok, such as Pathum Thani, Nonthaburi, or Samut Prakan, where larger tracts of land might be available.

It's important to note that any large-scale solar PV project would require careful site assessment, considering factors such as land availability, proximity to the power grid, and local regulations. Additionally, the tropical climate of Thailand, with its high humidity and occasional heavy rains, would need to be taken into account when planning and designing solar installations in this 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.