Dongdaemun in South Korea offers varying potential for solar energy generation throughout the year, being located in the Northern Temperate Zone at coordinates 37.5709, 127.044. This urban district shows moderate to good solar electricity production capabilities depending on the season.

Seasonal Solar Production

Solar panels in Dongdaemun perform best during summer months, generating approximately 5.34kWh per day for each kilowatt of installed capacity. Spring follows closely with 5.13kWh/day per installed kilowatt. Production decreases considerably during autumn (3.57kWh/day) and reaches its lowest point in winter (2.92kWh/day).

The most productive period for solar generation spans from late spring through early autumn (May through September), when longer days and more direct sunlight maximize energy output. Winter months (December through February) yield significantly less energy due to shorter days and the sun's lower position in the sky.

Optimal Panel Installation

For fixed solar panel installations in Dongdaemun, Seoul, the ideal tilt angle to maximize year-round energy production is 34 degrees facing South. This specific angle optimizes the capture of available sunlight throughout the year, accounting for the location's latitude and seasonal sun path variations.

Environmental Factors and Mitigation

Several environmental factors may impact solar production in Dongdaemun:

• Seasonal monsoons (typically June-August) can reduce solar efficiency through increased cloud cover and rainfall
• Winter air pollution and yellow dust storms from continental Asia may deposit particulate matter on panels
• Urban shading from Dongdaemun's dense high-rise buildings can create partial shading issues
• Occasional snow cover in winter months may temporarily reduce production

To mitigate these challenges, installation strategies should include regular cleaning systems to remove dust and pollution deposits, micro-inverters or power optimizers to minimize partial shading losses, and slightly steeper panel angles (35-40 degrees) if winter production is prioritized to help shed snow more effectively. Additionally, careful site assessment to identify and avoid shadow patterns from surrounding buildings is essential in this urban environment.

Note: The Northern Temperate Zone extends from 35° latitude North up to 66.5° latitude.

So far, we have conducted calculations to evaluate the solar photovoltaic (PV) potential in 124 locations across South Korea. This analysis provides insights into each city/location's potential for harnessing solar energy through PV installations.

Link: Solar PV potential in South Korea by location

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

Seasonal solar PV output for Latitude: 37.5709, Longitude: 127.044 (Dongdaemun, South Korea), 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 34° South in Dongdaemun, South Korea

To maximize your solar PV system's energy output in Dongdaemun, South Korea (Lat/Long 37.5709, 127.044) throughout the year, you should tilt your panels at an angle of 34° 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 Dongdaemun, South Korea

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 Dongdaemun, South Korea. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 34° South tilt angle throughout the year.

Overall Best Summer Angle	Overall Best Autumn Angle	Overall Best Winter Angle	Overall Best Spring Angle
21° South in Summer	42° South in Autumn	52° South in Winter	31° 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 Dongdaemun, South Korea

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 Dongdaemun, South Korea.

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 Dongdaemun, South Korea

Topography Around Dongdaemun

Dongdaemun, located in eastern Seoul, South Korea, sits in a basin surrounded by mountains, a characteristic feature of Seoul's topography. The area is situated at an elevation of approximately 20-30 meters above sea level, making it relatively flat compared to the surrounding terrain. The Han River flows several kilometers to the south, creating a broad valley through the city. The immediate vicinity of Dongdaemun features urban development with densely packed buildings and infrastructure typical of a major metropolitan center. However, the broader landscape is defined by several prominent mountains that form a natural boundary around the Seoul basin. To the north lies Bukhansan, the highest mountain in Seoul at 836 meters, while Namsan (262 meters) rises to the south of the central city area. Gwanaksan stands further to the southwest, and Dobongsan and Suraksan are located to the northeast. This mountainous perimeter creates a distinctive bowl-like topography, with Seoul nestled in the basin and urban development extending outward until it meets the steeper slopes of the surrounding mountains. The terrain gradually rises from the central areas like Dongdaemun toward these peripheral mountains.

Solar PV Suitability in Surrounding Areas

When considering locations for large-scale solar photovoltaic (PV) installations near Dongdaemun, several factors must be evaluated, including available space, topographical features affecting sun exposure, and existing land use patterns. The densely developed urban core around Dongdaemun itself is not well-suited for large-scale solar installations due to limited available space and shadowing from tall buildings. However, several nearby areas offer better potential: The flatter areas along the Han River to the south present opportunities for solar development. These riverside locations often have fewer tall structures causing shadows and may include some open spaces or industrial zones that could be repurposed. The broad, open nature of the river valley allows for good solar exposure throughout the day. Moving slightly farther from the urban center, the transitional zones between the city proper and the surrounding mountains offer interesting possibilities. These areas, particularly to the east and southeast of Dongdaemun, feature gradually rising terrain that can provide favorable sun angles for solar panels while still being accessible for development. For truly large-scale installations, the best locations would be on the outskirts of the Seoul metropolitan area, where the terrain opens up into more extensive flat or gently sloping areas. The regions to the west and southwest, extending toward Incheon and Gimpo, feature more expansive plains that would accommodate larger solar arrays. These areas benefit from fewer topographical obstructions to sunlight. South-facing slopes on the lower portions of the surrounding mountains could also be considered for solar installations, as they receive more direct sunlight throughout the year. However, steeper terrain presents construction challenges and potential environmental concerns. It's worth noting that South Korea's mountainous topography and high population density generally limit the availability of ideal sites for very large solar farms near major urban centers like Seoul. This geographical reality has led to innovative approaches, including the development of floating solar installations on reservoirs and other water bodies in the broader region, which maximize limited land resources while benefiting from the cooling effect of water on solar panels.

South Korea solar PV Stats as a country

South Korea ranks 8th in the world for cumulative solar PV capacity, with 18,161 total MW's of solar PV installed. This means that 3.80% of South Korea's total energy as a country comes from solar PV (that's 21st in the world). Each year South Korea is generating 350 Watts from solar PV per capita (South Korea ranks 9th in the world for solar PV Watts generated per capita). [source]

Are there incentives for businesses to install solar in South Korea?

Yes, there are incentives for businesses wanting to install solar energy in South Korea. The Korean government offers a variety of financial incentives and subsidies for businesses that install solar energy systems. These include tax credits, grants, loans, and other forms of support. Additionally, the government has implemented a feed-in tariff system which guarantees a fixed price for electricity generated from renewable sources such as solar power. This helps to make the installation of solar energy systems more attractive to businesses by providing them with a guaranteed return on their investment.

Do you have more up to date information than this on incentives towards solar PV projects in South Korea? 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.

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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.