Taizhou, Zhejiang, China, located at 28.6637°N, 121.429°E in the Northern Sub Tropics, offers a favorable environment for solar PV energy generation throughout the year. The city experiences varying levels of solar productivity across different seasons, with summer being the most productive period.

Seasonal Solar Production

Solar panels in Taizhou can generate an average of 5.14 kWh per day for each kW of installed capacity during summer, making it the peak season for solar energy production. Spring and autumn follow closely, with daily outputs of 4.12 kWh and 4.09 kWh, respectively. Winter sees a decrease in production, with an average of 3.14 kWh per day, but still maintains a reasonable output.

The consistent solar production throughout the year indicates that Taizhou is well-suited for solar PV installations. While summer months offer the highest energy yields, the relatively small variation between seasons suggests that solar panels can provide a steady power supply year-round.

Optimal Panel Tilt

For fixed-panel installations in Taizhou, Zhejiang, the ideal tilt angle to maximize year-round solar production is 26 degrees facing south. This angle takes into account the city's latitude and seasonal variations in sun position, ensuring optimal energy capture throughout the year.

Environmental Factors

While Taizhou's climate is generally favorable for solar energy production, there are a few environmental factors to consider:

• Typhoons: Taizhou's coastal location makes it susceptible to typhoons, which can potentially damage solar installations.
• Air pollution: Industrial activities in the region may lead to air pollution, which can slightly reduce solar panel efficiency.

To mitigate these risks, solar installations in Taizhou should incorporate sturdy mounting systems capable of withstanding high winds. Regular cleaning and maintenance of panels can help offset the effects of air pollution. Additionally, using high-quality, weather-resistant panels can ensure better performance and longevity in the face of these environmental challenges.

Overall, Taizhou's location provides an ideal setting for solar PV energy generation, with consistent output throughout the year and manageable environmental factors that can be addressed through proper installation and maintenance practices.

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 Taizhou

Seasonal solar PV output for Latitude: 28.6637, Longitude: 121.429 (Taizhou, 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 26° South in Taizhou, China

To maximize your solar PV system's energy output in Taizhou, China (Lat/Long 28.6637, 121.429) throughout the year, you should tilt your panels at an angle of 26° 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 Taizhou, 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 Taizhou, China. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 26° South tilt angle throughout the year.

Overall Best Summer Angle	Overall Best Autumn Angle	Overall Best Winter Angle	Overall Best Spring Angle
13° South in Summer	33° South in Autumn	44° South in Winter	22° 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 Taizhou, 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 Taizhou, 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 Taizhou, China

Taizhou, located in eastern China's Zhejiang Province, boasts a diverse and interesting topography. The city lies along the coast of the East China Sea, featuring a mix of coastal plains, rolling hills, and low mountains. The terrain gradually rises from the coastline towards the inland areas, creating a varied landscape that has shaped the region's development and culture. Along the coast, Taizhou is characterized by flat, low-lying areas with numerous small islands and inlets. These coastal plains are ideal for agriculture and urban development, which is why much of the city's population is concentrated in this area. As you move inland, the landscape becomes more undulating, with gentle hills and valleys dotting the countryside. Further west, the terrain becomes more rugged, with low mountains and steep hillsides. The Yandang Mountains, located to the southwest of Taizhou, are a notable feature of the region's topography. These mountains, while not particularly high, offer scenic vistas and are popular for hiking and tourism.

Potential for Large-Scale Solar PV

When considering areas suitable for large-scale solar photovoltaic (PV) installations near Taizhou, several factors come into play. The most promising locations would likely be found in the following areas: The coastal plains offer expansive, flat areas that could accommodate large solar arrays. These locations benefit from unobstructed sunlight and easier access for construction and maintenance. However, care must be taken to avoid areas prone to flooding or storm surges. The gently rolling hills inland from the coast present another opportunity for solar development. These areas often have good sun exposure and may be less valuable for agriculture or urban development. The slight inclines can even be advantageous, allowing for optimal panel positioning to capture sunlight. Some of the lower mountain slopes and plateaus in the western part of the region could also be suitable for solar installations. While these areas might present more challenges in terms of accessibility, they often have excellent sun exposure and may be less utilized for other purposes. It's important to note that any large-scale solar PV project would need to carefully consider environmental impacts, land use regulations, and proximity to existing power infrastructure. Additionally, the region's climate, including factors like cloud cover and seasonal variations in sunlight, would play a crucial role in determining the most suitable locations for solar energy development.

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

Tell Us About Your Work

We love seeing how our research helps others! If you've cited this article in your work, we'd be delighted to hear about it. Drop us a line via our Contact Us page or on X, to share where you've used our information - we may feature a link to your work on our site. This helps create a network of valuable resources for others in the solar energy community and helps us understand how our research is contributing to the field. Plus, we occasionally highlight exceptional works that reference our research on our social media channels.

Feeling generous?

Share this with your friends!

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.