Gudlavalleru, Andhra Pradesh, India, located at 16.3497°N, 81.0514°E, offers a promising environment for solar energy generation throughout the year. Situated in the tropics, this location benefits from consistent sunlight and experiences seasons characterized more by wet and dry periods than temperature fluctuations.
Seasonal Solar Performance
Solar photovoltaic (PV) systems in Gudlavalleru demonstrate robust energy production across all seasons. Spring stands out as the most productive period, with an impressive 6.76 kWh per day for each kilowatt of installed solar capacity. Winter and summer also show strong performance, generating 5.20 kWh/day and 5.12 kWh/day, respectively. Autumn experiences a slight dip but still maintains a respectable 4.57 kWh/day output.
Optimal Panel Positioning
To maximize year-round solar energy production in Gudlavalleru, Andhra Pradesh, fixed solar panels should be tilted at a 15-degree angle facing south. This optimal tilt angle takes into account the location's latitude, the Earth's elliptical orbit, and daily solar elevation angles, ensuring the panels capture the most sunlight throughout the year.
Environmental Considerations
While Gudlavalleru presents favorable conditions for solar energy production, there are some environmental factors to consider. The region experiences a monsoon season, typically from June to September, which can lead to increased cloud cover and potentially reduced solar output. To mitigate this, installing high-quality, weather-resistant panels and implementing proper drainage systems around the installation can help maintain efficiency during wet periods.
Additionally, the tropical climate may lead to higher temperatures, which can slightly decrease solar panel efficiency. Employing panels with good heat tolerance and ensuring adequate ventilation behind the panels can help mitigate this effect. Regular cleaning to remove dust and pollen, which are common in the region, will also contribute to maintaining optimal performance.
Overall, Gudlavalleru offers an excellent location for solar PV installations, with its consistent sunlight and strong year-round performance. By addressing the few environmental challenges through thoughtful installation and maintenance practices, solar energy systems in this area can operate at high efficiency levels throughout the year.
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 Gudlavalleru
Seasonal solar PV output for Latitude: 16.3497, Longitude: 81.0514 (Gudlavalleru, 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:
 
Ideally tilt fixed solar panels 15° South in Gudlavalleru, India
To maximize your solar PV system's energy output in Gudlavalleru, India (Lat/Long 16.3497, 81.0514) 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.
Seasonally adjusted solar panel tilt angles for Gudlavalleru, 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 Gudlavalleru, 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 | 22° South in Autumn | 32° South in Winter | 10° 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 Gudlavalleru, 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 Gudlavalleru, India.
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 Gudlavalleru, India
Gudlavalleru, located in the Krishna district of Andhra Pradesh, India, sits in a region characterized by predominantly flat terrain. The area surrounding this small town is part of the fertile Krishna River delta, known for its rich alluvial soil and extensive agricultural lands. The landscape is primarily composed of vast, level plains with minimal elevation changes, making it ideal for farming activities. The topography around Gudlavalleru is marked by its proximity to several water bodies. The Krishna River flows to the north of the town, while numerous irrigation canals and smaller streams crisscross the region. These waterways have played a crucial role in shaping the local landscape, creating a network of fertile fields and lush vegetation.
Potential for Solar PV Development
The flat terrain and abundance of open spaces in the vicinity of Gudlavalleru make it a promising location for large-scale solar photovoltaic (PV) installations. Several areas nearby could be well-suited for such projects: To the east and southeast of Gudlavalleru, there are extensive agricultural lands that receive ample sunlight throughout the year. These areas, if not actively cultivated, could be repurposed for solar farms without significant land preparation costs. The lack of natural obstacles and the region's generally clear skies contribute to its suitability for solar energy generation. The southwestern outskirts of Gudlavalleru also present opportunities for solar PV development. This area features some uncultivated lands and fallow fields that could be utilized for solar installations. The relatively sparse population in this direction means that large-scale projects could be implemented with minimal disruption to local communities. To the north, beyond the Krishna River, lies another potential zone for solar PV projects. While the river itself poses a natural barrier, the lands just across it share similar topographical characteristics with Gudlavalleru's immediate surroundings. These areas could be explored for solar development, provided that proper infrastructure for energy transmission is established. It's worth noting that while the flat terrain is advantageous for solar PV installations, care must be taken to avoid areas prone to flooding, especially those closest to the Krishna River and its tributaries. Additionally, any solar development plans should consider the agricultural importance of the region and strive to balance energy production with food security concerns. In conclusion, the topography around Gudlavalleru, with its expansive flat lands and abundant sunshine, offers significant potential for large-scale solar PV projects. With careful planning and consideration of local agricultural needs, this area could become a notable contributor to India's renewable energy goals.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
Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Thursday 21st of November 2024
Last Updated: Monday 21st of July 2025
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.




