Areannamkwaengi, South Korea, located in the Northern Temperate Zone, presents a moderately favorable location for solar PV energy generation throughout the year, though with significant seasonal variations. This site experiences typical seasonal fluctuations in solar energy production that align with its mid-latitude position.
Seasonal Solar Production
Solar energy generation at this location shows clear seasonal patterns. Summer stands out as the most productive period, yielding about 5.34 kWh per day for each kilowatt of installed capacity. Spring follows closely behind with 5.13 kWh/day per kW. Production decreases notably during autumn (3.57 kWh/day) and reaches its lowest point in winter (2.92 kWh/day).
The significant difference between summer/spring and winter production (nearly 45% less in winter compared to summer) indicates that solar installations here will have their peak performance from late spring through early fall. This pattern makes the location good but not ideal for year-round consistent solar generation.
Optimal Panel Installation
For fixed solar panel installations at this location, the ideal tilt angle to maximize year-round energy production is 33 degrees facing South. This specific angle has been calculated to optimize annual solar energy capture by accounting for the site's latitude and the seasonal variations in the sun's position.
Environmental and Weather Considerations
Several factors could potentially impact solar production at this location. South Korea experiences a monsoon season (typically June through September) which brings increased cloud cover and rainfall that can temporarily reduce solar efficiency despite occurring during otherwise peak production months.
Additionally, the region can experience yellow dust storms (Asian Dust) in spring, which deposit particulate matter on solar panels, potentially reducing their efficiency. Air pollution from nearby industrial areas might also create a thin film on panels over time.
Winter snowfall, while not extremely heavy in this region, can cover panels and eliminate production until cleared. The relatively low winter production numbers already reflect the reduced sunlight hours and lower sun angle during this season.
Recommended Preventative Measures
- Install panels with self-cleaning technologies or hydrophobic coatings to minimize dust and pollution buildup
- Implement a regular cleaning schedule, particularly after dust storms or extended dry periods
- Consider snow-shedding panel arrangements with steeper winter tilt if winter production is especially important
- Use microinverters or power optimizers to minimize production losses when some panels are partially shaded or affected by environmental factors
- Install weather monitoring systems to track conditions that may affect panel performance
With proper installation and maintenance practices, solar PV systems in Areannamkwaengi can achieve good overall performance despite seasonal variations, with the greatest returns expected during the spring and summer months.
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 Areannamkwaengi
Seasonal solar PV output for Latitude: 37.0745, Longitude: 127.3264 (Areannamkwaengi, 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 33° South in Areannamkwaengi, South Korea
To maximize your solar PV system's energy output in Areannamkwaengi, South Korea (Lat/Long 37.0745, 127.3264) throughout the year, you should tilt your panels at an angle of 33° 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 Areannamkwaengi, 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 Areannamkwaengi, South Korea. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 33° 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 | 30° 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 Areannamkwaengi, 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 Areannamkwaengi, 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 Areannamkwaengi, South Korea
The topography surrounding Areannamkwaengi in South Korea presents a varied landscape characteristic of the central Korean Peninsula. Located in Gyeonggi Province, this area sits within a transitional zone between mountainous terrain and more gently rolling hills. The immediate vicinity features moderate elevation changes with numerous small valleys and ridgelines that create a patchwork of varied terrain.
Regional Landscape Features
Areannamkwaengi is situated in a region where the eastern mountains begin to soften into the western coastal plains. The area exhibits a mix of low mountains, hills, and relatively flat agricultural areas. Elevations generally range from approximately 50 to 300 meters above sea level in the immediate surroundings. The terrain is dissected by several small streams and drainage systems that have carved shallow valleys throughout the area. These waterways generally flow westward toward the Yellow Sea as part of the broader regional drainage pattern. The resulting topography creates a series of undulating hills with moderate slopes rather than steep mountainous terrain.Solar PV Suitability Assessment
When considering locations for large-scale solar photovoltaic installations near Areannamkwaengi, several areas show particular promise based on topographical considerations: The gently sloping south-facing hillsides throughout the region offer ideal conditions for solar collection. These areas benefit from favorable sun exposure throughout the day while avoiding the shadowing effects that can occur in steeper terrain. Several relatively flat plateaus and broader valley floors in the western portions of the region provide excellent potential for solar development. These areas typically feature minimal slope constraints and fewer topographical obstacles, allowing for more efficient panel arrangement and installation. Former agricultural lands on the periphery of developed areas present opportunities for solar conversion. These sites often combine favorable topography with existing access to transportation infrastructure and power transmission networks.Topographical Challenges
Not all areas near Areannamkwaengi are equally suitable for solar development. The more pronounced hills and ridges to the east create potential shading issues during morning periods, particularly in winter months when sun angles are lower. Additionally, some valley bottoms experience seasonal fog accumulation that could temporarily reduce solar efficiency. The region experiences typical Korean Peninsula seasonal patterns, with distinct summer and winter conditions. The moderate topography generally helps mitigate extreme weather effects, though consideration should be given to occasional heavy rainfall events that can cause localized flooding in lower-lying areas.Land Use Considerations
The existing land use patterns around Areannamkwaengi reflect a mix of agricultural, light industrial, and residential development. Solar development would need to be balanced with these established uses. The most promising areas from a purely topographical perspective tend to be the transitional zones between more intensively developed areas and the surrounding rural landscape. These transitional areas often feature the combination of favorable slope aspects, minimal shading constraints, and proximity to existing infrastructure that make them particularly well-suited for large-scale solar PV development without requiring extensive terrain modification.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
Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Wednesday 25th of June 2025
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.




