Qingcheng, Gansu, China, located at 36.0008°N, 107.8876°E in the Northern Temperate Zone, presents a varied landscape for solar energy generation throughout the year. This location experiences significant seasonal fluctuations in solar power output, which affects the overall efficiency of photovoltaic (PV) systems.

Seasonal Solar Performance

The solar energy potential in Qingcheng varies considerably across seasons. Summer stands out as the most productive period, with an impressive 6.52 kWh per day for each kilowatt of installed solar capacity. Spring follows as the second-best season, generating 5.43 kWh/day/kW. In contrast, autumn and winter show markedly reduced output at 3.55 kWh/day/kW and 3.39 kWh/day/kW, respectively.

These figures indicate that the location is most ideal for solar energy production during the warmer months, particularly from late spring through early autumn. During this period, longer daylight hours and generally clearer skies contribute to enhanced solar panel performance.

Optimal Panel Positioning

To maximize year-round solar energy production in Qingcheng, Gansu, fixed solar panels should be tilted at an angle of 32 degrees facing south. This optimal angle has been calculated considering the location's latitude, the Earth's elliptical orbit, and the varying solar elevation angles throughout the year.

Environmental and Weather Considerations

While Qingcheng's location offers good potential for solar energy, there are some environmental factors that could impact solar production:

1. Dust and air pollution: The region may experience dust storms and air pollution, which can reduce solar panel efficiency. Regular cleaning and maintenance of panels can mitigate this issue.

2. Snow accumulation: Winter snowfall can temporarily cover panels, reducing output. Installing panels at the optimal angle helps snow slide off more easily, and snow-clearing mechanisms can be implemented if necessary.

3. Temperature extremes: Very high summer temperatures can slightly reduce panel efficiency, while very low winter temperatures can affect system components. Using high-quality, temperature-resistant equipment can address these concerns.

To maximize solar energy production in Qingcheng, Gansu, it's crucial to implement a robust cleaning schedule, consider snow removal strategies for winter, and select equipment designed to withstand local temperature variations. With these measures in place, the location can be effectively utilized for solar PV energy generation, particularly capitalizing on the high-output summer and spring seasons.

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 Qingcheng

Seasonal solar PV output for Latitude: 36.0008, Longitude: 107.8876 (Qingcheng, 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 Qingcheng, China

To maximize your solar PV system's energy output in Qingcheng, China (Lat/Long 36.0008, 107.8876) 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 Qingcheng, 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 Qingcheng, 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	42° 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 Qingcheng, 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 Qingcheng, 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 Qingcheng, China

The topography around Qingcheng, China, located at latitude 36.0008 and longitude 107.8876, is characterized by a diverse landscape typical of the Loess Plateau region. This area features a mix of rolling hills, deep valleys, and flat plateaus, all shaped by centuries of erosion and human activity. The terrain in this region is primarily composed of loess, a fine, yellowish-brown silt deposited by wind over thousands of years. This unique geological formation has resulted in a landscape of gently undulating hills interspersed with steep-sided gullies and ravines. The elevation in the area varies considerably, with some hills rising to several hundred meters above the surrounding terrain. Rivers and streams have carved deep channels through the loess, creating a network of valleys that crisscross the landscape. These waterways play a crucial role in shaping the topography, as they continue to erode the soft loess soil, leading to the formation of distinctive landforms such as terraces and loess caves.

Potential for Large-Scale Solar PV

When considering areas nearby that would be most suited to large-scale solar photovoltaic (PV) installations, several factors come into play. The ideal locations for solar farms in this region would be: Flat or gently sloping plateaus: These areas provide the most suitable terrain for installing large arrays of solar panels. The relatively level ground reduces the need for extensive earthwork and allows for optimal panel orientation. South-facing slopes: Given the northern latitude of Qingcheng, south-facing hillsides would receive the most direct sunlight throughout the year. These areas could be ideal for solar installations, provided the slope is not too steep. Areas with minimal vegetation: Regions with sparse vegetation or those already cleared for agriculture might be preferable, as they would require less land preparation and have a lower environmental impact. Locations near existing infrastructure: Areas close to roads and power transmission lines would be advantageous for the construction and operation of solar farms. It's important to note that while the loess soil is generally stable when dry, it can be prone to erosion and subsidence when wet. Therefore, any large-scale solar PV project in this region would need to carefully consider soil stability and implement appropriate erosion control measures. Additionally, the specific suitability of any site would require detailed geological and environmental studies, as well as consideration of local land use policies and regulations. The unique topography of the Loess Plateau presents both challenges and opportunities for solar energy development, making careful site selection and engineering crucial for successful large-scale solar PV projects in the Qingcheng area.

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.

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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.