Lianyun, Jiangsu, China, located in the Northern Sub Tropics, offers a promising location for solar energy generation throughout the year. With its geographical coordinates at 34.7319 latitude and 119.4403 longitude, this area experiences varying levels of solar potential across different seasons.

Seasonal Solar Performance

The solar energy production in Lianyun follows a predictable pattern throughout the year. Summer and spring stand out as the most productive seasons, with daily outputs of 5.12 kWh and 5.11 kWh per kilowatt of installed solar capacity, respectively. These high yields can be attributed to longer daylight hours and more direct sunlight during these seasons. Autumn sees a moderate decrease in production, generating 3.81 kWh per day for each kilowatt installed. Winter experiences the lowest output at 3.31 kWh per day, likely due to shorter days and the sun's lower position in the sky.

Optimal Panel Installation

For those considering a fixed panel installation in Lianyun, Jiangsu, the ideal tilt angle to maximize year-round solar production is 32 degrees facing south. This angle has been calculated taking into account the location's latitude, the Earth's elliptical orbit, and daily solar elevation angles, ensuring optimal exposure to sunlight throughout the year.

Environmental Considerations

While Lianyun generally offers favorable conditions for solar energy production, there are some environmental factors to consider: 1. Air pollution: As with many industrialized areas in China, Lianyun may experience periods of high air pollution, which can reduce solar panel efficiency. 2. Seasonal weather patterns: The region may be subject to monsoon rains and occasional typhoons, potentially affecting solar output during certain times of the year. To mitigate these challenges, solar installations in Lianyun should incorporate:

• Regular cleaning schedules to remove pollution buildup on panels
• Robust mounting systems to withstand strong winds during storms
• Weather-resistant panel coatings to protect against moisture and debris

By implementing these measures, solar energy systems in Lianyun can maintain higher efficiency and durability, making the most of the location's solar potential throughout the year.

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 Lianyun

Seasonal solar PV output for Latitude: 34.7319, Longitude: 119.4403 (Lianyun, 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 Lianyun, China

To maximize your solar PV system's energy output in Lianyun, China (Lat/Long 34.7319, 119.4403) 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 Lianyun, 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 Lianyun, 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
18° South in Summer	40° South in Autumn	50° 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 Lianyun, 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 Lianyun, 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 Lianyun, China

The topography around Lianyun, China, located at latitude 34.7319 and longitude 119.4403, is characterized by a predominantly flat coastal plain. This area is part of the expansive North China Plain, which extends across much of eastern China. The terrain in and around Lianyun is generally low-lying, with minimal elevation changes across the landscape. To the east of Lianyun lies the Yellow Sea, with the coastline featuring sandy beaches and shallow waters. The land gradually rises as you move inland, but the increase in elevation is subtle and gradual. The region is crisscrossed by numerous rivers and streams, which have shaped the landscape over time, creating a network of alluvial plains and fertile farmlands.

Suitability 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 flat terrain of the coastal plain surrounding Lianyun offers excellent potential for solar energy development. The lack of significant hills or mountains means there are fewer obstacles to block sunlight, allowing for optimal solar exposure throughout the day. The agricultural lands slightly inland from the coast present promising opportunities for solar PV projects. These areas often have large, open spaces that could accommodate extensive solar panel arrays without major land preparation efforts. The relatively low population density in rural areas also means that there would be fewer conflicts with existing residential or commercial developments. However, it's important to note that the proximity to the coast may introduce challenges such as salt spray, which could potentially affect solar panel efficiency over time. Therefore, areas a bit further inland, perhaps 10-20 kilometers from the coastline, might offer a better balance between available land and reduced exposure to coastal elements. Additionally, regions near existing power infrastructure, such as substations or transmission lines, would be particularly advantageous for large-scale solar PV installations. This proximity would reduce the costs associated with connecting the solar farms to the electrical grid. In conclusion, while the entire region around Lianyun offers favorable topography for solar PV development, the most suitable areas would likely be the flat, open spaces inland from the immediate coastal zone, especially those with good access to existing power infrastructure.

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.