Solar Energy Potential in Seo-gu, South Korea

Seo-gu, a district located in Gwangju, South Korea, offers varying potential for solar energy generation throughout the year. Situated in the Northern Temperate Zone, this location experiences distinct seasonal changes that affect solar photovoltaic (PV) performance.

Seasonal Solar Output

The solar energy production in Seo-gu fluctuates significantly across seasons. Summer yields the highest output at 5.63 kWh per day for each kilowatt of installed solar capacity. Spring follows closely with 5.46 kWh/day, making these two seasons the most productive for solar energy generation. Autumn sees a moderate decrease in production, with 3.77 kWh/day. Winter experiences the lowest output at 2.74 kWh/day, which is less than half of the summer production. This stark contrast highlights the importance of considering seasonal variations when planning solar installations in Seo-gu.

Optimal Panel Installation

For fixed panel installations in Seo-gu, the ideal tilt angle to maximize year-round solar production is 31 degrees facing South. This angle has been calculated to optimize energy capture across all seasons, taking into account the location's latitude and the Earth's elliptical orbit.

Environmental Considerations

While Seo-gu's location is generally favorable for solar energy production, there are some environmental factors to consider: 1. Monsoon season: South Korea experiences a monsoon season, typically from June to September, which can lead to increased cloud cover and rainfall, potentially reducing solar output. 2. Air pollution: Urban areas in South Korea, including Gwangju, can experience air pollution, which may slightly reduce solar panel efficiency. To mitigate these factors, consider the following preventative measures:

• Install high-quality, weather-resistant panels that perform well in varying conditions.
• Implement a regular cleaning schedule to remove dust and pollutants from panel surfaces.
• Use micro-inverters or power optimizers to minimize the impact of partial shading on overall system performance.

By taking these precautions, solar installations in Seo-gu can maximize their energy production potential throughout the year, despite seasonal variations and environmental challenges.

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 Seo-gu, Gwangju

Seasonal solar PV output for Latitude: 35.1644, Longitude: 126.8546 (Seo-gu, Gwangju, 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 31° South in Seo-gu, Gwangju, South Korea

To maximize your solar PV system's energy output in Seo-gu, Gwangju, South Korea (Lat/Long 35.1644, 126.8546) throughout the year, you should tilt your panels at an angle of 31° 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 Seo-gu, Gwangju, 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 Seo-gu, Gwangju, South Korea. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 31° South tilt angle throughout the year.

Overall Best Summer Angle	Overall Best Autumn Angle	Overall Best Winter Angle	Overall Best Spring Angle
19° South in Summer	40° South in Autumn	50° South in Winter	28° 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 Seo-gu, Gwangju, 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 Seo-gu, Gwangju, 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 Seo-gu, Gwangju, South Korea

Seo-gu is a district located in the southwestern part of Gwangju Metropolitan City in South Korea. The topography around Seo-gu is characterized by a mix of urban areas and surrounding natural features. The district itself is primarily flat or gently rolling, as it is situated in a basin surrounded by mountains.

To the north and west of Seo-gu, the terrain gradually rises into the foothills of the Mudeungsan Mountain range. This mountain range dominates the landscape to the east of Gwangju, with Mudeungsan itself reaching an elevation of about 1,187 meters (3,894 feet). The presence of these mountains creates a natural boundary and backdrop for the city.

To the south and southwest of Seo-gu, the land becomes flatter as it transitions into the Honam Plain, one of South Korea's major agricultural regions. This area is characterized by expansive rice fields and other croplands, interspersed with small hills and streams.

Regarding areas suitable for large-scale solar PV (photovoltaic) installations, the most promising locations would likely be found in the flatter regions to the south and southwest of Seo-gu. These areas offer several advantages for solar energy production:

1. The relatively flat terrain of the Honam Plain provides ample space for large solar arrays without the need for significant land modification.
2. The open agricultural lands receive more consistent sunlight throughout the day, as there are fewer tall buildings or natural features to cast shadows.
3. The existing infrastructure in these areas, developed for agricultural purposes, could potentially be adapted to support solar energy projects.

However, it's important to note that the use of agricultural land for solar installations would need to be carefully balanced with food production needs. Alternative locations might include brownfield sites or former industrial areas within the urban parts of Seo-gu or neighboring districts, which could be repurposed for solar energy production.

The mountainous areas to the north and east, while potentially offering some suitable south-facing slopes, would generally be less ideal for large-scale solar projects due to the challenges of installation on steep terrain and the potential environmental impacts on forested areas.

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!

Citation Guide

Article Details for Citation

Tell Us About Your Work

We love seeing how our research helps others! If you've cited this article in your work, we'd be delighted to hear about it. Drop us a line via our Contact Us page or on X, to share where you've used our information - we may feature a link to your work on our site. This helps create a network of valuable resources for others in the solar energy community and helps us understand how our research is contributing to the field. Plus, we occasionally highlight exceptional works that reference our research on our social media channels.

Feeling generous?

Share this with your friends!

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.