Solar PV Analysis of Gwangjin-gu, South Korea
Gwangjin-gu, a district in Seoul, South Korea, offers a moderately favorable location for solar energy generation throughout the year. Situated in the Northern Temperate Zone at coordinates 37.5409° N, 127.0762° E, this area experiences distinct seasonal variations in solar energy production.
Seasonal Solar Energy Output
Solar panel performance in Gwangjin-gu fluctuates significantly across seasons. Summer stands out as the most productive period, with an average daily output of 5.36 kWh per kW of installed solar capacity. Spring follows closely, generating 5.17 kWh/day. Autumn sees a noticeable decrease to 3.63 kWh/day, while winter experiences the lowest output at 2.98 kWh/day.
The substantial difference between summer and winter production highlights the impact of seasonal changes on solar energy generation in this region. However, the relatively strong performance during spring and summer months contributes significantly to the overall annual energy yield.
Optimal Panel Installation
For fixed solar panel installations in Gwangjin-gu, the ideal tilt angle to maximize year-round energy production is 34 degrees facing south. This angle optimizes the panels' exposure to sunlight throughout the year, balancing the varying sun positions across seasons.
Environmental and Weather Considerations
Several factors may affect solar energy production in Gwangjin-gu:
- Air pollution: Seoul's urban environment can lead to smog and particulate matter, potentially reducing solar irradiance.
- Monsoon season: Heavy rainfall during summer months may temporarily decrease solar output.
- Snow accumulation: Winter snowfall could cover panels, impeding energy production.
To mitigate these issues, consider installing panels at a steeper angle to promote self-cleaning and snow shedding. Regular maintenance, including cleaning, is crucial. Additionally, using high-quality, weather-resistant panels and anti-soiling coatings can help maintain optimal performance under challenging conditions.
Despite these challenges, Gwangjin-gu's location still offers substantial potential for solar energy generation, particularly during the spring and summer months. With proper installation and maintenance, solar PV systems can provide a significant contribution to the area's renewable energy portfolio.
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 Gwangjin-gu
Seasonal solar PV output for Latitude: 37.5409, Longitude: 127.0762 (Gwangjin-gu, 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 Gwangjin-gu, South Korea
To maximize your solar PV system's energy output in Gwangjin-gu, South Korea (Lat/Long 37.5409, 127.0762) 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 Gwangjin-gu, 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 Gwangjin-gu, 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 Gwangjin-gu, 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 Gwangjin-gu, South Korea.
Our calculation method
- Solar Position:
We determine the Sun's position on the Winter solstice using the location's latitude and solar declination. - Shadow Projection:
We calculate the shadow length cast by panels using trigonometry, considering panel tilt and the Sun's elevation angle. - 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 Gwangjin-gu, South Korea
Gwangjin-gu is a district located in eastern Seoul, South Korea. The topography of this area is characterized by a mix of urban landscapes and natural features. The district is situated along the northern bank of the Han River, which is a major geographical feature of the region. The riverside areas are generally flat and low-lying, making up part of the broader Seoul Basin.
To the north and northeast of Gwangjin-gu, the terrain gradually becomes more elevated, with gentle hills and small mountains. The most prominent nearby elevation is Achasan Mountain, which lies just to the northeast of the district. This mountain, while not particularly tall by global standards, provides a significant contrast to the flatter areas near the river.
The urban landscape of Gwangjin-gu and its surrounding areas is densely populated, with numerous high-rise buildings, residential complexes, and commercial structures. This urban development has significantly altered the natural topography, creating a mostly flat, built-up environment in many parts of the district.
Areas Suited for Large-scale Solar PV
When considering areas nearby that would be most suited to large-scale solar photovoltaic (PV) installations, there are several factors to consider. The ideal locations would have ample open space, minimal shading, and good sun exposure throughout the day. Given these criteria, the following areas near Gwangjin-gu might be suitable:
1. The flatter areas along the Han River, particularly any undeveloped or parkland spaces, could potentially accommodate solar installations. These areas generally have good sun exposure due to their open nature.
2. The gentler slopes on the southern faces of hills to the north and northeast of Gwangjin-gu might be suitable for solar farms. These areas would receive good sunlight throughout the day, especially if they face south.
3. Large rooftops of industrial or commercial buildings in less densely populated areas surrounding Gwangjin-gu could be utilized for solar PV installations. These flat surfaces often have minimal shading and could support substantial arrays of solar panels.
4. Any available open spaces or former agricultural lands in the outskirts of Seoul, moving away from the dense urban core, might be suitable for large-scale solar projects. These areas would likely have fewer obstacles to block sunlight and more space for extensive installations.
It's important to note that while these areas might be topographically suitable, other factors such as land availability, zoning regulations, and proximity to the power grid would also play crucial roles in determining the feasibility of large-scale solar PV projects. Additionally, given the dense urban nature of Seoul and its surroundings, finding large open areas for solar farms might be challenging, and creative solutions like distributed rooftop systems might be more practical in this context.
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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Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Wednesday 9th of October 2024
Last Updated: Monday 21st of July 2025
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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.
