Solar PV Analysis of Anyang, China
Anyang, Henan, China, located at latitude 36.0986 and longitude 114.4102, presents a generally favorable environment for solar energy production throughout the year. This location in the Northern Temperate Zone experiences distinct seasonal variations in solar output, which can significantly impact the efficiency of photovoltaic (PV) systems.
Seasonal Solar Performance
Solar energy generation in Anyang varies considerably across the seasons. Spring and summer are the most productive periods, with daily outputs of 5.40 kWh and 5.35 kWh per kW of installed solar capacity, respectively. Autumn and winter see a notable decrease in production, dropping to 3.44 kWh and 3.23 kWh per day.
The substantial difference between peak and low seasons suggests that Anyang's solar potential is heavily influenced by its seasonal climate. The longer, sunnier days of spring and summer provide ideal conditions for solar energy harvesting, while the shorter, often cloudier days of autumn and winter result in reduced output.
Optimal Panel Installation
To maximize year-round solar energy production in Anyang, Henan, fixed solar panels should be installed at a tilt angle of 32 degrees facing south. This angle is calculated to optimize the panels' exposure to sunlight throughout the year, taking into account the Earth's elliptical orbit and the location's specific latitude.
Environmental Factors and Mitigation
While Anyang's location is generally suitable for solar energy production, there are some environmental factors that could potentially impact system performance:
- Air pollution: Anyang, Henan, like many industrial cities in China, may experience periods of high air pollution, which can reduce solar irradiance reaching the panels.
- Dust and particulate matter: The region's dry climate and industrial activities can lead to dust accumulation on solar panels, decreasing their efficiency.
To mitigate these issues, regular cleaning and maintenance of solar panels is crucial. Installing automated cleaning systems or scheduling frequent manual cleaning can help maintain optimal performance. Additionally, using high-quality, anti-soiling coatings on the panels can reduce dust accumulation and make cleaning easier.
In conclusion, while Anyang faces some challenges, its overall solar potential remains strong. With proper installation techniques and regular maintenance, solar PV systems in this location can provide a reliable and sustainable source of energy throughout the year.
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 319 locations across China. This analysis provides insights into each city/location's potential for harnessing solar energy through PV installations.
Link: Solar PV potential in China by location
Solar output per kW of installed solar PV by season in Anyang
Seasonal solar PV output for Latitude: 36.0986, Longitude: 114.4102 (Anyang, China), 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 32° South in Anyang, China
To maximize your solar PV system's energy output in Anyang, China (Lat/Long 36.0986, 114.4102) throughout the year, you should tilt your panels at an angle of 32° 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 Anyang, China
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 Anyang, China. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 32° South tilt angle throughout the year.
| Overall Best Summer Angle | Overall Best Autumn Angle | Overall Best Winter Angle | Overall Best Spring Angle |
|---|---|---|---|
| 20° South in Summer | 41° South in Autumn | 51° 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 Anyang, China
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 Anyang, China.
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 Anyang, China
The topography around Anyang, China is characterized by a mix of flat plains and gently rolling hills. The city itself is situated in the northern part of Henan Province, on the North China Plain. This region is known for its relatively flat terrain, which gradually transitions to more elevated areas as you move away from the city center.
To the north and east of Anyang, the landscape remains predominantly flat, with vast agricultural fields stretching for miles. This area is part of the expansive North China Plain, which is one of the country's most important agricultural regions. The terrain here is generally low-lying, with elevations typically ranging from 50 to 100 meters above sea level.
As you move towards the south and west of Anyang, the topography becomes slightly more varied. Here, you'll find gentle hills and small ridges interspersed with flat areas. These hills rarely exceed 200-300 meters in height, creating a subtle undulating landscape. The Taihang Mountains, a major mountain range in northern China, are located further to the west, but their influence on Anyang's immediate surroundings is minimal.
Regarding areas suitable for large-scale solar PV (photovoltaic) installations, the flat plains to the north and east of Anyang would be the most promising. These areas offer several advantages for solar energy production:
- Ample space: The vast, open farmlands provide plenty of room for extensive solar panel arrays without significant topographical obstacles.
- Minimal shading: The flat terrain means there are few natural features that could cast shadows on solar panels, maximizing sunlight exposure throughout the day.
- Ease of construction: Flat land simplifies the installation process and reduces construction costs compared to hilly or mountainous areas.
- Good solar irradiance: This region of China receives a fair amount of sunlight, making it suitable for solar energy production.
While the agricultural use of these lands might present some challenges for large-scale solar development, the technical suitability of the terrain makes the plains north and east of Anyang prime candidates for solar PV projects. Any specific site selection would need to balance energy production potential with other land use considerations and local regulations.
China solar PV Stats as a country
China ranks 1st in the world for cumulative solar PV capacity, with 306,973 total MW's of solar PV installed. This means that 6.20% of China's total energy as a country comes from solar PV (that's 13th in the world). Each year China is generating 217 Watts from solar PV per capita (China ranks 24th in the world for solar PV Watts generated per capita). [source]
Are there incentives for businesses to install solar in China?
Yes, there are several incentives for businesses wanting to install solar energy in China. These include subsidies from the Chinese government, preferential tax policies, and access to low-interest loans. Additionally, businesses may be eligible for renewable energy certificates (RECs) which can be sold on the open market for additional income.
Do you have more up to date information than this on incentives towards solar PV projects in China? Please reach out to us and help us keep this information current. Thanks!
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Article Details for Citation
Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Saturday 7th of September 2024
Last Updated: Monday 21st of July 2025
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Compare this location to others worldwide for solar PV potential
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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.
