Hengshui, Hebei, China, situated at latitude 37.7391° and longitude 115.6835° in the Northern Temperate Zone, offers varying conditions for solar PV energy generation throughout the year. This location experiences significant seasonal fluctuations in solar energy production potential.

Seasonal Solar Production

The solar energy generation at Hengshui follows a distinct seasonal pattern. Spring and summer are the peak production periods, with spring slightly outperforming summer at 5.53 kWh per day for each kilowatt of installed capacity, compared to summer's 5.51 kWh/day. Energy production decreases considerably during autumn (3.30 kWh/day) and reaches its lowest point in winter (2.93 kWh/day).

This seasonal variation means that a solar PV system in Hengshui will produce nearly twice as much energy during the optimal months compared to the winter period. The strong performance during spring makes March through May particularly valuable for solar generation, while the June through August summer period maintains similarly high output levels.

Optimal Panel Installation

For fixed solar panel installations in Hengshui, Hebei, the ideal tilt angle to maximize year-round energy production is 33 degrees facing South. This angle has been calculated based on the location's latitude and seasonal solar elevation patterns, weighted by the daily PV potential throughout the year.

Environmental Challenges

Several environmental factors could potentially impact solar production in Hengshui:

• Air pollution and particulate matter from industrial activities in the region can reduce solar irradiance reaching panels, particularly during winter months when coal heating increases emissions.
• Seasonal dust storms in spring, common in northern China, can deposit significant amounts of dust and sand on panel surfaces.
• Winter snowfall, while not extremely heavy in this region, can temporarily cover panels and reduce output during the already low-production winter months.

Mitigation Strategies

To address these environmental challenges and maximize solar energy production in Hengshui, Hebei, several preventative measures can be implemented:

• Install automated cleaning systems or implement regular manual cleaning schedules, particularly before and after dust storm season.
• Consider slightly steeper panel angles than the calculated 33 degrees in areas prone to dust accumulation or snow coverage to facilitate natural cleaning by rainfall and snow sliding.
• Use anti-soiling coatings on panel surfaces to reduce dust adhesion and make cleaning more effective.
• Install air quality monitoring equipment to track when pollution levels might be impacting production and adjust maintenance schedules accordingly.
• Consider bifacial panels to capture reflected light, which can help offset some production losses during high pollution periods.

With proper installation at the recommended angle and regular maintenance to address environmental factors, Hengshui can be a viable location for solar PV installations, with particularly strong production potential 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 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 Hengshui

Seasonal solar PV output for Latitude: 37.7391, Longitude: 115.6835 (Hengshui, 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 33° South in Hengshui, China

To maximize your solar PV system's energy output in Hengshui, China (Lat/Long 37.7391, 115.6835) 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 Hengshui, 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 Hengshui, China. 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
22° South in Summer	43° South in Autumn	53° 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 Hengshui, 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 Hengshui, China.

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 Hengshui, China

The terrain surrounding Hengshui, located in Hebei Province of northern China, is predominantly characterized by flat, expansive plains typical of the North China Plain region. This area features minimal elevation changes, with the landscape maintaining a relatively consistent, low-lying profile across much of the surrounding territory. The elevation generally ranges between 20-40 meters above sea level, creating an uninterrupted horizon in many directions.

Topographical Features

Hengshui sits within the broader Hai River Basin, a major watershed in northern China. The area's flatness results from centuries of sediment deposition from rivers flowing from the western mountains toward the Bohai Sea. This geological history has created fertile alluvial soils that have long supported agricultural activities throughout the region. The city itself surrounds Hengshui Lake, a significant freshwater body that serves as an important ecological reserve. This lake represents one of the few notable topographical features breaking the otherwise level landscape. To the east of Hengshui, the terrain continues its flat character as it extends toward the coastal areas of the Bohai Sea, approximately 200 kilometers away.

Surrounding Landscape

Moving westward from Hengshui, the terrain begins a very gradual rise as it transitions toward the Taihang Mountains, though these mountains are still quite distant from the city itself. The immediate vicinity remains dominated by agricultural land, with fields of wheat, corn, and other crops creating a patchwork pattern across the landscape. The region experiences a temperate continental climate with distinct seasons, including hot summers and cold, dry winters. This climate pattern, combined with the flat terrain, creates conditions where dust storms occasionally occur, particularly in spring months when winds sweep across the exposed plains.

Solar PV Potential Areas

The extensive flat terrain surrounding Hengshui presents numerous opportunities for large-scale solar photovoltaic installations. The most suitable areas would be: The agricultural plains to the south and southeast of Hengshui offer particularly promising locations for solar development. These areas feature minimal shadowing effects due to the absence of hills or mountains, maximizing potential solar exposure throughout the day. The land in these directions tends to have slightly lower agricultural productivity compared to other areas around the city, potentially reducing land-use conflicts. The northwestern periphery of Hengshui county also presents favorable conditions for solar PV installations. This area features some slightly elevated terrain that receives consistent solar radiation and experiences fewer foggy days compared to areas closer to Hengshui Lake. The slightly higher elevation can reduce dust accumulation on solar panels, a consideration important for maintenance efficiency. Certain sections of land between Hengshui and neighboring Jizhou District (to the northeast) contain parcels of less productive agricultural land and some brownfield sites that could be repurposed for solar development. These areas offer the advantage of proximity to existing electrical infrastructure, potentially reducing connection costs. The flat topography throughout the region means that construction and maintenance access would be straightforward for nearly any solar installation. However, developers should note that the region's occasional dust storms would necessitate regular panel cleaning to maintain optimal efficiency.

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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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.