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Graph of hourly avg kWh electricity output per kW of Solar PV installed in Ulanqab, China (by season)

Solar Energy Potential in Ulanqab, Inner Mongolia, China

Ulanqab, Inner Mongolia, China, located at 40.9954° N, 113.1252° E in the Northern Temperate Zone, offers varying solar energy potential throughout the year. This location experiences significant seasonal fluctuations in solar electricity generation capability. The solar production at Ulanqab peaks during summer months, generating approximately 6.40 kWh per day for each kilowatt of installed solar capacity. Spring follows closely with 5.96 kWh/day per kW installed. Production decreases considerably during autumn (3.99 kWh/day) and reaches its lowest point in winter (3.25 kWh/day).

Seasonal Variations

These seasonal differences create a pattern where nearly twice as much solar energy is produced in summer compared to winter. This variation is typical for locations in the Northern Temperate Zone where the sun's path changes significantly throughout the year. For maximum year-round energy production, solar panels at this Ulanqab location should be installed at a 37-degree tilt angle facing South. This specific angle has been calculated to optimize annual electricity generation by accounting for the location's latitude and seasonal solar patterns.

Environmental Challenges

Several environmental factors can potentially impact solar production in Ulanqab:
  • Dust storms: The region's proximity to the Gobi Desert means occasional dust storms can coat panels with particulate matter, reducing efficiency
  • Extreme temperature variations: The continental climate brings very cold winters and hot summers, which can affect panel efficiency
  • Snow accumulation: Winter snowfall can temporarily cover panels, blocking sunlight

Preventative Measures

To maximize solar production despite these challenges, several preventative measures should be considered: Installing panels at the optimal 37-degree tilt helps snow slide off more easily. Regular cleaning systems can mitigate dust accumulation, while temperature-resistant panel technologies can maintain efficiency despite temperature fluctuations. Additionally, elevated mounting systems can reduce snow buildup and improve airflow for cooling in summer. Despite these challenges, Ulanqab's strong summer and spring production values indicate good overall solar potential, especially if seasonal variations and environmental factors are properly addressed during system design and installation.

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 Ulanqab

Seasonal solar PV output for Latitude: 40.9954, Longitude: 113.1252 (Ulanqab, 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:

Summer
Average 6.40kWh/day in Summer.
Autumn
Average 3.99kWh/day in Autumn.
Winter
Average 3.25kWh/day in Winter.
Spring
Average 5.96kWh/day in Spring.

 

Ideally tilt fixed solar panels 37° South in Ulanqab, China

To maximize your solar PV system's energy output in Ulanqab, China (Lat/Long 40.9954, 113.1252) throughout the year, you should tilt your panels at an angle of 37° 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.

The sun
At Latitude: 40.9954, Longitude: 113.1252, the ideal angle to tilt panels is 37° South

Seasonally adjusted solar panel tilt angles for Ulanqab, 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 Ulanqab, China. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 37° South tilt angle throughout the year.

Overall Best Summer Angle Overall Best Autumn Angle Overall Best Winter Angle Overall Best Spring Angle
25° South in Summer 46° South in Autumn 56° South in Winter 33° South in Spring

Assuming you can modify the tilt angle of your solar PV panels throughout the year, you can optimize your solar generation in Ulanqab, China as follows: In Summer, set the angle of your panels to 25° facing South. In Autumn, tilt panels to 46° facing South for maximum generation. During Winter, adjust your solar panels to a 56° angle towards the South for optimal energy production. Lastly, in Spring, position your panels at a 33° angle facing South to capture the most solar energy in Ulanqab, China.

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 Ulanqab, 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 Ulanqab, 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.






Please enter information above to calculate panel spacing.

Topography for solar PV around Ulanqab, China

The region surrounding Ulanqab in Inner Mongolia, China, features a diverse topography characterized by a transition between the vast Mongolian Plateau and the North China Plain. The landscape presents a mixture of rolling grasslands, gentle hills, and some more rugged terrain. Ulanqab sits at a relatively high elevation of approximately 1,300-1,400 meters above sea level, contributing to its continental climate with significant seasonal temperature variations.

Topographical Features

The northern portions of Ulanqab extend into the southern reaches of the Mongolian Plateau, displaying expansive grassland steppes that stretch toward the horizon. These open plains feature minimal tree cover and gentle undulations in the terrain. Moving southward, the landscape becomes more varied with scattered hills and some small mountain ranges. The Yinshan Mountains influence parts of the region, creating areas of increased elevation and more complex terrain. Water features are relatively sparse in this semi-arid environment, though several small rivers and lakes can be found throughout the territory. The Yellow River flows to the south of Ulanqab, influencing the regional geography but not directly within the immediate vicinity of the city.

Potential for Solar Development

For large-scale solar photovoltaic installations, several areas around Ulanqab present favorable conditions. The most suitable locations would include: The grassland plains to the north and northwest of Ulanqab offer extensive flat or gently sloping terrain with minimal obstruction from vegetation or geographical features. These open spaces provide ample room for large solar arrays while requiring minimal land preparation. The slightly elevated plateaus throughout the region also present excellent opportunities for solar development. These areas typically experience less fog and atmospheric interference than lower-lying regions, potentially increasing solar efficiency. The semi-arid climate of the region means less cloud cover throughout much of the year, enhancing solar potential. Additionally, the lower population density in many surrounding areas reduces land use conflicts for extensive installations.

Considerations for Development

While developing solar projects in the region, several topographical factors warrant consideration. The occasional dust storms that sweep across the Mongolian Plateau can temporarily reduce solar efficiency and may require additional maintenance protocols. Winter conditions can include snow cover, though the relatively dry climate means accumulation is generally manageable. The existing transportation infrastructure varies throughout the region, with some remote areas potentially requiring additional development to support construction and maintenance of large facilities. However, Ulanqab's position along major east-west transportation corridors provides strategic advantages for energy distribution. The combination of extensive open terrain, favorable elevation, and relatively sparse population makes the broader Ulanqab region a compelling candidate for substantial solar PV development, particularly in the northern and western grassland areas where vast, uninterrupted spaces could accommodate industrial-scale installations.

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!

Citation Guide

Article Details for Citation

Article: Solar PV Analysis of Ulanqab, China
Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Sunday 8th of June 2025
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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