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Flag of IndiaSolar PV Analysis of Ponnur, India

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

Ponnur, Andhra Pradesh, India, situated at coordinates 16.0686, 80.5523, offers a promising location for solar energy generation throughout the year. Located in the tropics, this region experiences consistent sunlight and is characterized by wet and dry seasons rather than traditional four-season cycles.

Seasonal Solar Performance

The solar energy potential in Ponnur varies across meteorological seasons, with Spring standing out as the most productive period. During Spring, solar panels can generate an impressive 6.68 kWh per day for each kilowatt of installed capacity. Winter follows with 5.15 kWh/day, while Summer and Autumn produce 4.99 kWh/day and 4.68 kWh/day, respectively.

These figures indicate that Ponnur maintains a relatively stable solar energy output throughout the year, with Spring offering a significant boost in production. This consistency makes it an ideal location for year-round solar energy generation, with the added benefit of increased output during the Spring months.

Optimal Panel Tilt

For fixed solar panel installations in Ponnur, Andhra Pradesh, the ideal tilt angle to maximize year-round energy production is 15 degrees facing South. This angle has been calculated considering various factors, including daily solar elevation angles, optimal panel tilt, and NASA's solar irradiance data, while also accounting for the Earth's elliptical orbit.

Environmental Considerations

While Ponnur generally offers favorable conditions for solar energy production, there are a few environmental factors to consider:

1. Monsoon season: The region experiences heavy rainfall during the monsoon months, typically from June to September. This can lead to reduced sunlight and potentially impact solar panel efficiency. To mitigate this, installing panels at the optimal tilt angle can help maximize exposure to available sunlight and promote water runoff.

2. Dust and pollution: As with many parts of India, Ponnur may experience periods of increased dust and air pollution. Regular cleaning and maintenance of solar panels can help maintain their efficiency. Consider installing panels with self-cleaning technologies or implementing automated cleaning systems to address this issue.

3. High temperatures: The tropical climate can lead to elevated temperatures, which may slightly reduce solar panel efficiency. Choosing high-quality panels designed for hot climates and ensuring proper ventilation during installation can help mitigate this effect.

By addressing these factors during the planning and installation phases, solar energy systems in Ponnur can be optimized to take full advantage of the location's favorable conditions for year-round solar power generation.

Note: The Tropics are located between 23.5° North and -23.5° South of the equator.

So far, we have conducted calculations to evaluate the solar photovoltaic (PV) potential in 422 locations across India. This analysis provides insights into each city/location's potential for harnessing solar energy through PV installations.

Link: Solar PV potential in India by location

Solar output per kW of installed solar PV by season in Ponnur

Seasonal solar PV output for Latitude: 16.0686, Longitude: 80.5523 (Ponnur, India), 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 4.99kWh/day in Summer.
Autumn
Average 4.68kWh/day in Autumn.
Winter
Average 5.15kWh/day in Winter.
Spring
Average 6.68kWh/day in Spring.

 

Ideally tilt fixed solar panels 15° South in Ponnur, India

To maximize your solar PV system's energy output in Ponnur, India (Lat/Long 16.0686, 80.5523) throughout the year, you should tilt your panels at an angle of 15° 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: 16.0686, Longitude: 80.5523, the ideal angle to tilt panels is 15° South

Seasonally adjusted solar panel tilt angles for Ponnur, India

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 Ponnur, India. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 15° South tilt angle throughout the year.

Overall Best Summer Angle Overall Best Autumn Angle Overall Best Winter Angle Overall Best Spring Angle
0° in Summer 21° South in Autumn 31° South in Winter 10° 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 Ponnur, India as follows: In Summer, set the angle of your panels to 0° facing . In Autumn, tilt panels to 21° facing South for maximum generation. During Winter, adjust your solar panels to a 31° angle towards the South for optimal energy production. Lastly, in Spring, position your panels at a 10° angle facing South to capture the most solar energy in Ponnur, India.

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 Ponnur, India

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 Ponnur, India.

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 Ponnur, India

The topography around Ponnur, India, located at 16.0686°N latitude and 80.5523°E longitude, is characterized by a predominantly flat landscape with gentle undulations. This region is part of the coastal plains of Andhra Pradesh, situated in the Krishna-Godavari delta. The area is known for its fertile alluvial soil, which has been deposited over centuries by the Krishna and Guntur rivers. The terrain surrounding Ponnur is largely composed of agricultural land, with expansive paddy fields and other crop plantations dominating the landscape. The elevation in this area is relatively low, typically ranging from just a few meters above sea level to about 20-30 meters in slightly higher areas. This flat topography extends for many kilometers in all directions, creating a vast, open expanse. Interspersed throughout this agricultural landscape are numerous small towns, villages, and scattered settlements. The region is also crisscrossed by a network of irrigation canals, which play a crucial role in supporting the area's agricultural activities. These canals, along with natural water bodies like ponds and small lakes, add some variation to the otherwise uniform terrain.

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 and abundance of open spaces in the region surrounding Ponnur make it generally favorable for solar energy development. However, some areas may be more suitable than others. The most ideal locations for large-scale solar PV would be non-agricultural lands that are not prone to flooding. These could include fallow lands, barren patches, or areas with poor soil quality that are not suitable for cultivation. Such areas are often found on slightly elevated grounds or away from the immediate vicinity of rivers and major water bodies. Areas to the west and northwest of Ponnur, moving slightly inland and away from the coast, might offer better opportunities for solar PV installations. These regions tend to have a bit more elevation and are less likely to be affected by potential coastal influences like salt spray or cyclonic weather events. It's important to note that while the flat terrain is advantageous for solar PV, care must be taken to avoid prime agricultural lands, as the region's economy heavily relies on agriculture. Additionally, areas near existing electrical infrastructure would be preferable to minimize the costs associated with power transmission. In conclusion, while the entire region around Ponnur has potential for solar PV development due to its flat topography and ample sunlight, the most suitable areas would be those that combine non-agricultural land use, slightly higher elevation, and proximity to existing power infrastructure, while also being at a safe distance from flood-prone zones.

India solar PV Stats as a country

India ranks 5th in the world for cumulative solar PV capacity, with 49,684 total MW's of solar PV installed. This means that 6.50% of India's total energy as a country comes from solar PV (that's 11th in the world). Each year India is generating 36 Watts from solar PV per capita (India ranks 56th in the world for solar PV Watts generated per capita). [source]

Are there incentives for businesses to install solar in India?

Yes, there are several incentives for businesses wanting to install solar energy in India. These include:

1. Capital Subsidy: The Ministry of New and Renewable Energy (MNRE) provides a capital subsidy of up to 30% on the cost of installing solar power systems for commercial and industrial establishments.

2. Accelerated Depreciation: Businesses can avail accelerated depreciation benefits under Section 32 of the Income Tax Act, 1961, which allows them to claim tax deductions on investments made in solar projects over a period of five years instead of claiming it all at once.

3. Net Metering: This policy allows businesses to sell excess electricity generated from their rooftop solar system back into the grid at retail rates, thus reducing their electricity bills significantly.

4. Solar Renewable Energy Certificates (SREC): Businesses can earn SRECs by generating renewable energy through their rooftop solar systems and then selling these certificates in the open market or trading platforms like IEX or PXIL at predetermined prices set by state regulatory commissions.

Do you have more up to date information than this on incentives towards solar PV projects in India? Please reach out to us and help us keep this information current. Thanks!

Citation Guide

Article Details for Citation

Article: Solar PV Analysis of Ponnur, India
Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Saturday 21st of December 2024
Last Updated: Monday 21st of July 2025

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