Bang Kruai, Nonthaburi, Thailand, located at 13.8062° N, 100.483° E, offers a promising 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 significant temperature variations.

Seasonal Solar Performance

The solar energy potential in Bang Kruai remains relatively stable across seasons. Spring sees the highest output at 6.07 kWh per day for each kilowatt of installed solar capacity. Summer and winter both yield 5.93 kWh/day, while autumn experiences a slight dip to 5.00 kWh/day. This consistency is advantageous for year-round energy production.

Optimal Panel Positioning

For fixed solar panel installations in Bang Kruai, Nonthaburi, 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 shifts throughout the year.

Peak Generation Periods

While solar generation remains relatively consistent, the spring months offer the highest potential for energy production. This period, typically from February to April, coincides with Thailand's hot season, characterized by clear skies and intense sunlight.

Environmental Considerations

Despite the favorable conditions, there are some environmental factors to consider: 1. Monsoon season: From May to October, increased cloud cover and rainfall may slightly reduce solar efficiency. However, the impact is generally minimal due to the diffuse light still available. 2. Air pollution: Bangkok's metropolitan area, which includes Bang Kruai, Nonthaburi, can experience periods of high air pollution, potentially affecting solar panel performance.

Preventative Measures

To maximize solar energy production in Bang Kruai, Nonthaburi, consider the following: 1. Regular cleaning: Implement a cleaning schedule to remove dust and pollutants from panel surfaces, especially during the dry season. 2. Weather-resistant equipment: Use high-quality, weather-resistant solar panels and components to withstand tropical conditions. 3. Monitoring systems: Install real-time monitoring systems to quickly identify and address any performance issues. Overall, Bang Kruai's location presents an excellent opportunity for solar energy generation, with consistent year-round output and only minor seasonal variations to consider.

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 Kruai

Seasonal solar PV output for Latitude: 13.8062, Longitude: 100.483 (Bang Kruai, 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 Kruai, Thailand

To maximize your solar PV system's energy output in Bang Kruai, Thailand (Lat/Long 13.8062, 100.483) 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 Kruai, 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 Kruai, 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 Kruai, 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 Kruai, 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 Kruai, Thailand

The topography around Bang Kruai, Thailand, is characterized by a predominantly flat landscape typical of the central plains region. This area, situated just northwest of Bangkok, is part of the Chao Phraya River delta, which features low-lying terrain with minimal elevation changes. The land is primarily composed of alluvial deposits, resulting in fertile soil that has historically been used for agriculture, particularly rice cultivation. The region surrounding Bang Kruai is crisscrossed by numerous waterways, including both natural rivers and man-made canals. These water features have played a crucial role in shaping the local topography, creating a network of small islands and peninsulas. Despite the abundance of water, the area does not have significant hills or mountains, with most of the land remaining relatively level.

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 terrain in and around Bang Kruai offers advantages for solar energy development, as it provides ample space for panel arrays without the need for extensive land modification. The areas to the north and west of Bang Kruai, where there is less urban development, would likely be more suitable for large-scale solar PV projects. These regions tend to have more open agricultural land, which could potentially be repurposed for solar farms. The lack of tall buildings or natural obstructions in these areas would minimize shading issues, allowing for optimal sunlight exposure throughout the day. However, it's important to note that the prevalence of waterways in the region may limit the available contiguous land for very large installations. Solar developers would need to carefully select sites that are not prone to flooding and have good drainage to ensure the longevity and efficiency of the solar arrays. Additionally, areas slightly further from the immediate vicinity of Bang Kruai, where population density decreases, might offer more opportunities for expansive solar projects. These locations would likely have fewer land-use conflicts and potentially lower land acquisition costs. While the topography is generally favorable for solar PV development, any large-scale project would need to consider other factors such as grid connectivity, local regulations, and environmental impact assessments. The proximity to Bangkok could be advantageous in terms of energy demand and existing infrastructure, but it also means that careful planning would be required to integrate large solar installations into the broader urban and peri-urban landscape.

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.