Manipal, Karnataka, India, situated at 13.3512°N latitude and 74.78°E longitude, offers a promising location for solar energy generation. Located in the tropics, this region experiences consistent sunlight throughout most of the year, with seasons characterized more by wet and dry periods rather than temperature variations.

Seasonal Solar Output

The solar energy potential in Manipal varies across meteorological seasons, with spring and winter showing the highest output. Per kilowatt of installed solar capacity, the expected daily electricity generation is:

• Spring: 6.68 kWh/day
• Winter: 6.03 kWh/day
• Autumn: 4.97 kWh/day
• Summer: 4.68 kWh/day

This data indicates that Manipal has favorable conditions for solar energy production year-round, with peak performance during spring and winter months. The relatively high output even during the less productive seasons suggests a consistent and reliable solar resource.

Optimal Panel Tilt

For fixed solar panel installations in Manipal, Karnataka, the ideal tilt angle to maximize year-round production is 14 degrees facing South. This angle optimizes the panels' exposure to sunlight throughout the year, accounting for the Earth's elliptical orbit and Manipal's specific latitude.

Environmental Considerations

While Manipal's tropical location is generally favorable for solar energy, there are some environmental factors to consider. The region experiences a monsoon season, typically from June to September, which can impact solar production due to increased cloud cover and rainfall. To mitigate these effects, installers should ensure proper waterproofing and drainage systems for the solar panels.

Additionally, the tropical climate may lead to higher temperatures, which can slightly reduce solar panel efficiency. Implementing adequate ventilation behind the panels and using high-quality, heat-resistant components can help maintain optimal performance.

Dust accumulation can also be a concern in tropical areas. Regular cleaning and maintenance schedules should be implemented to prevent dust from reducing panel efficiency. Some installers may recommend automated cleaning systems for larger installations.

Overall, Manipal's location presents an excellent opportunity for solar energy production, with consistent year-round output and manageable environmental challenges that can be addressed through proper installation and maintenance practices.

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 Manipal

Seasonal solar PV output for Latitude: 13.3512, Longitude: 74.78 (Manipal, 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 14° South in Manipal, India

To maximize your solar PV system's energy output in Manipal, India (Lat/Long 13.3512, 74.78) throughout the year, you should tilt your panels at an angle of 14° 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 Manipal, 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 Manipal, India. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 14° South tilt angle throughout the year.

Overall Best Summer Angle	Overall Best Autumn Angle	Overall Best Winter Angle	Overall Best Spring Angle
2° North in Summer	19° South in Autumn	29° South in Winter	7° 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 Manipal, 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 Manipal, 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.

Topography for solar PV around Manipal, India

The topography around Manipal, India, is characterized by a diverse and picturesque landscape. Located on the southwestern coast of Karnataka state, Manipal sits atop a plateau in the Western Ghats mountain range. The area features a mix of gently rolling hills, flat plateaus, and steep escarpments that gradually descend towards the Arabian Sea to the west. The region surrounding Manipal is known for its lush green vegetation, thanks to the abundant rainfall during the monsoon season. The plateau on which Manipal is situated rises approximately 50-60 meters above sea level, offering panoramic views of the surrounding countryside. To the east, the terrain becomes more rugged as it transitions into the higher elevations of the Western Ghats, with dense forests and occasional rocky outcrops.

Coastal Influence

The proximity to the Arabian Sea significantly influences the topography of the area. As you move westward from Manipal, the land gradually slopes down towards the coast, where you'll find beautiful beaches, estuaries, and coastal plains. The coastline is dotted with numerous rivers and streams that originate in the Western Ghats and flow westward, creating a network of waterways and backwaters.

Suitable Areas for Large-scale Solar PV

When considering areas near Manipal for large-scale solar photovoltaic (PV) installations, several factors come into play. The most suitable locations would be those that offer a combination of flat or gently sloping terrain, ample sunlight exposure, and minimal environmental impact. The plateaus and flat areas to the east and northeast of Manipal present promising opportunities for solar PV development. These regions typically have less vegetation cover compared to the densely forested Western Ghats, making them easier to develop without significant deforestation. The elevated nature of these areas also ensures good exposure to sunlight throughout the day. Another potential area for solar PV installations could be the coastal plains to the west of Manipal. While these areas are more populated, there may be pockets of unused land that could be repurposed for solar energy production. The relatively flat terrain of the coastal region would simplify construction and maintenance of solar arrays. It's important to note that any large-scale solar PV project would need to carefully consider environmental impacts, land use regulations, and the local climate. The heavy monsoon rains and occasional cyclones that affect the region would require robust engineering and design solutions to ensure the longevity and efficiency of solar installations. In conclusion, while the varied topography around Manipal presents some challenges for large-scale solar PV development, there are suitable areas, particularly on the plateaus to the east and northeast, as well as select locations in the coastal plains, that could be considered for such projects. Careful planning and environmental assessments would be crucial to successfully implementing solar energy solutions in this diverse and ecologically sensitive region.

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

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.