Chachoengsao, Thailand, located at 13.7018° N, 101.0456° E, presents a favorable environment for solar energy generation throughout the year. This tropical location benefits from consistent sunlight, with seasons primarily characterized by wet and dry periods rather than temperature extremes.

Seasonal Solar Performance

The solar energy output in Chachoengsao remains relatively stable across all seasons, with only minor fluctuations. Winter proves to be the most productive season, yielding 5.89 kWh per day for each kilowatt of installed solar capacity. Spring follows closely with 5.71 kWh/day, while summer generates 5.62 kWh/day. Autumn experiences a slight dip but still maintains a respectable 4.86 kWh/day.

Optimal Panel Positioning

For fixed solar panel installations in Chachoengsao, the ideal tilt angle to maximize year-round energy production is 13 degrees facing South. This angle takes into account the location's latitude and the Earth's elliptical orbit, ensuring optimal exposure to sunlight throughout the year.

Environmental Considerations

While Chachoengsao's climate is generally conducive to solar energy production, there are a few environmental factors to consider: 1. Monsoon season: The region experiences heavy rainfall during the monsoon months, typically from May to October. This can temporarily reduce solar output due to cloud cover and potential panel soiling. 2. High humidity: The tropical climate brings high humidity levels, which may lead to increased dust accumulation on panels. To mitigate these issues, several preventative measures can be implemented:

Preventative Measures

1. Regular cleaning: Establish a routine cleaning schedule for solar panels, especially during and after the monsoon season, to remove dust and debris. 2. Anti-soiling coatings: Apply specialized coatings to panel surfaces to reduce dust accumulation and make cleaning easier. 3. Tilt angle adjustment: Consider slightly increasing the tilt angle during the rainy season to promote natural cleaning by rainfall. 4. Robust mounting systems: Use corrosion-resistant materials and secure mounting to withstand potential strong winds during storms. By addressing these factors, solar installations in Chachoengsao can maintain high efficiency and durability, taking full advantage of the location's abundant solar resources 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 Chachoengsao

Seasonal solar PV output for Latitude: 13.7018, Longitude: 101.0456 (Chachoengsao, 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 Chachoengsao, Thailand

To maximize your solar PV system's energy output in Chachoengsao, Thailand (Lat/Long 13.7018, 101.0456) 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 Chachoengsao, 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 Chachoengsao, 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 Chachoengsao, 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 Chachoengsao, 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 Chachoengsao, Thailand

The topography around Chachoengsao, Thailand is primarily characterized by flat, low-lying plains. This area is part of the larger Central Plains region of Thailand, which is known for its relatively uniform and level terrain. The landscape is dominated by expansive rice fields and agricultural land, interspersed with small hills and occasional patches of woodland.

To the east of Chachoengsao, the terrain gradually rises as it approaches the Sankamphaeng Range, which forms a natural border with neighboring Cambodia. However, this elevation change is subtle and occurs over a considerable distance. To the west and southwest, the land remains predominantly flat as it extends towards the Gulf of Thailand and the Bangkok metropolitan area.

The Bangpakong River, a major waterway in the region, flows through Chachoengsao province, creating a network of smaller rivers, canals, and irrigation channels that crisscross the landscape. These water features contribute to the area's agricultural productivity but do not significantly alter the overall flat topography.

Suitability for Large-Scale Solar PV

When considering areas nearby that would be most suited to large-scale solar photovoltaic (PV) installations, several factors come into play:

The flat, open terrain to the north and east of Chachoengsao city would be particularly well-suited for solar PV projects. These areas offer vast stretches of level ground with minimal shading from natural features or buildings. The lack of significant elevation changes reduces the complexity and cost of installation while maximizing exposure to sunlight throughout the day.

Agricultural lands that are less productive or have been set aside for development could be ideal candidates for solar farms. These areas often have existing road access and are already cleared of dense vegetation, reducing the environmental impact and costs associated with site preparation.

Regions slightly elevated above the flood plains of the Bangpakong River and its tributaries would be preferable to minimize the risk of flooding, which could damage solar equipment. These areas might be found on the gentle slopes leading towards the Sankamphaeng Range in the eastern part of the province.

It's important to note that while the topography is generally favorable for solar PV installations, other factors such as local regulations, grid connectivity, and land ownership would need to be carefully considered when selecting specific sites for large-scale solar projects in the Chachoengsao area.

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.