Solar PV Analysis of Loudi, China
In the city of Loudi, Hunan, China, positioned at a latitude of 27.7279 and longitude of 111.9992, the potential for solar power generation is notably high due to its advantageous geographic position and climate. The average kilowatt-hours (kWh) produced daily per kilowatt (kW) of installed solar capacity varies by season: summer yields an impressive 5.40 kWh/day due to its longer daylight hours; autumn follows with a respectable output of 3.85 kWh/day; spring produces a moderate yield at 2.87 kWh/day; while winter generates the least amount at 2.66 kWh/day.
The ideal inclination for fixed panel installations in Loudi is a tilt towards the South at an angle of approximately 24 degrees from horizontal plane. This orientation capitalizes on direct sunlight exposure throughout the year, optimizing energy production.
While Loudi's location within China's Northern Sub Tropics region generally favors solar power generation, certain environmental factors could potentially impede optimal energy production. For instance, periods of heavy rainfall or snowfall could obstruct sunlight from reaching solar panels and reduce their efficiency.
To mitigate these challenges and maximize energy yield year-round regardless of weather conditions, it would be advisable to install weather-resistant equipment capable of withstanding such adverse conditions without compromising performance levels significantly - this includes utilizing durable panel materials and robust mounting systems that can bear heavy loads without damage or misalignment over time.
Moreover, regular maintenance practices such as keeping panels clean from dust accumulation or snow build-up will ensure consistent performance levels are maintained despite seasonal variations in weather patterns in Loudi.
Note: The Northern Sub Tropics extend from 23.5° latitude North up to 35° 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 Loudi
Seasonal solar PV output for Latitude: 27.7279, Longitude: 111.9992 (Loudi, 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 24° South in Loudi, China
To maximize your solar PV system's energy output in Loudi, China (Lat/Long 27.7279, 111.9992) throughout the year, you should tilt your panels at an angle of 24° 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 Loudi, 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 Loudi, China. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 24° South tilt angle throughout the year.
| Overall Best Summer Angle | Overall Best Autumn Angle | Overall Best Winter Angle | Overall Best Spring Angle |
|---|---|---|---|
| 12° South in Summer | 32° South in Autumn | 43° South in Winter | 20° 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 Loudi, 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 Loudi, 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 Loudi, China
The topography around Loudi, China is mostly flat and low-lying. The terrain is composed of plains with some rolling hills and low mountains in the vicinity. Areas near the city that are most suitable for large-scale solar PV installations are open fields or areas with minimal tree cover, such as grasslands or agricultural land. Areas close to highways and other major roads could also be used to take advantage of available sunlight.
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: Tuesday 22nd of August 2023
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.
