Solar PV Analysis of Hejian, China
The location in Hejian, Hebei, China is pretty good for generating solar energy all year round. Here's why: during the summer and spring seasons, each kilowatt of installed solar can produce over 5.5 kilowatt-hours of electricity per day. In autumn and winter, it drops a bit to just over 3 kilowatt-hours per day but that's still a decent amount.
This means that the best times to generate solar power at this location are during the spring and summer when sunlight hours are longer and more intense.
However, for maximum yearly production from your panels, they should be tilted at an angle of 34 degrees facing south. This takes into account the movement of the sun across the sky throughout different seasons.
As for possible challenges in this area that could affect solar production - there might be some weather or environmental factors to consider. For instance, if Hejian has many cloudy or rainy days especially in autumn and winter season then this could reduce how much sunlight reaches your panels thus reducing power output. Also pollution levels can impact on efficiency as particles in air block sunlight.
To overcome these issues you might want to consider installing tracking systems which move panels so they're always facing directly towards sun increasing their productivity even on less sunny days. Regular cleaning will also help keep dust or snow off your panels so they can absorb as much light as possible.
Remember though every situation is unique so it’s important to do a thorough assessment before installing any system!
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 Hejian
Seasonal solar PV output for Latitude: 38.4276, Longitude: 116.0892 (Hejian, 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 34° South in Hejian, China
To maximize your solar PV system's energy output in Hejian, China (Lat/Long 38.4276, 116.0892) 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 Hejian, 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 Hejian, China. 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 |
|---|---|---|---|
| 22° South in Summer | 43° South in Autumn | 54° 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 Hejian, 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 Hejian, 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 Hejian, China
Hejian is located in the Hebei Province of China, which is characterized by plains and hilly areas. It's part of the North China Plain, one of the most densely populated regions in China. The region has a mix of flat land and low-lying hills.
As for solar PV installation, flat or gently sloping areas are usually preferred as they require less site preparation and are easier to install panels on. Therefore, the plain areas around Hejian would be more suited for large-scale solar PV installations.
However, other factors such as local climate (including sunlight hours), accessibility to grid connections and infrastructure also play an important role in determining suitable locations for solar farms. For instance, regions with higher annual sunshine duration would be ideal for setting up solar power plants.
In terms of specific nearby areas that may be suitable for large-scale solar PV installations based on topography alone:
1) The extensive plains north towards Tianjin could potentially be a good location due to its relatively flat terrain.
2) Areas west towards Baoding might also be suitable given their similar topographical features.
3) Southward direction towards Dezhou which is primarily composed of plains can also serve as potential sites.
Remember that these suggestions are purely based on topography; actual suitability would require more detailed assessments including environmental impact studies, land use considerations and economic feasibility analyses among others.
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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Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Tuesday 28th of May 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.
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.
