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Flag of IndiaSolar PV Analysis of Manimala, India

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

Manimala, Kerala, India, located at 9.4824° N, 76.7464° E, presents a favorable environment for solar energy generation throughout the year. This tropical location benefits from consistent sunlight, with seasons characterized more by wet and dry periods rather than temperature extremes.

Seasonal Solar Performance

The solar energy potential in Manimala varies slightly across seasons. Spring stands out as the most productive period, with an impressive 6.32 kWh per day for each kilowatt of installed solar capacity. Winter follows closely behind at 6.12 kWh/day. Summer and autumn see slightly lower but still substantial outputs at 5.24 kWh/day and 4.77 kWh/day, respectively. These figures indicate that Manimala maintains strong solar generation potential year-round, with only modest fluctuations between seasons. The relatively high output during winter is particularly noteworthy, as many locations experience significant drops in solar production during colder months.

Optimal Panel Positioning

For fixed solar panel installations in Manimala, Kerala, the ideal tilt angle to maximize year-round energy production is 9 degrees facing South. This relatively shallow angle reflects the location's proximity to the equator, where the sun's path remains high in the sky throughout the year.

Environmental Considerations

While Manimala's climate is generally conducive to solar energy production, there are a few factors to consider: 1. Monsoon season: The region experiences heavy rainfall during the southwest monsoon (June to September) and northeast monsoon (October to December). This could temporarily reduce solar output due to cloud cover and rain. 2. Humidity: High humidity levels, common in tropical areas, may lead to accelerated degradation of solar equipment if not properly maintained. To mitigate these challenges, consider the following preventative measures: - Use corrosion-resistant materials and protective coatings on solar panels and mounting systems. - Implement a regular cleaning schedule to remove dust and debris, especially after the monsoon season. - Install a robust drainage system to prevent water accumulation on or around the solar array. - Consider slight adjustments to the panel tilt angle during monsoon seasons to improve water runoff and reduce debris buildup. By addressing these factors, solar installations in Manimala can maintain high efficiency and longevity, taking full advantage of the location's excellent solar potential 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 Manimala

Seasonal solar PV output for Latitude: 9.4824, Longitude: 76.7464 (Manimala, 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 5.24kWh/day in Summer.
Autumn
Average 4.77kWh/day in Autumn.
Winter
Average 6.12kWh/day in Winter.
Spring
Average 6.32kWh/day in Spring.

 

Ideally tilt fixed solar panels 9° South in Manimala, India

To maximize your solar PV system's energy output in Manimala, India (Lat/Long 9.4824, 76.7464) throughout the year, you should tilt your panels at an angle of 9° 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: 9.4824, Longitude: 76.7464, the ideal angle to tilt panels is 9° South

Seasonally adjusted solar panel tilt angles for Manimala, 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 Manimala, India. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 9° South tilt angle throughout the year.

Overall Best Summer Angle Overall Best Autumn Angle Overall Best Winter Angle Overall Best Spring Angle
7° North in Summer 15° South in Autumn 25° South in Winter 4° 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 Manimala, India as follows: In Summer, set the angle of your panels to 7° facing North. In Autumn, tilt panels to 15° facing South for maximum generation. During Winter, adjust your solar panels to a 25° angle towards the South for optimal energy production. Lastly, in Spring, position your panels at a 4° angle facing South to capture the most solar energy in Manimala, 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 Manimala, 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 Manimala, 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 Manimala, India

The topography around Manimala, India, located at latitude 9.4824 and longitude 76.7464, is characterized by a diverse landscape that transitions from the coastal lowlands of Kerala to the foothills of the Western Ghats. This region is part of the Kottayam district and features a mix of gently rolling hills, fertile valleys, and numerous waterways. The area surrounding Manimala is predominantly rural, with lush green vegetation and abundant tropical flora. The terrain is interspersed with small streams and rivers, including the Manimala River, which flows through the region. The landscape is dotted with paddy fields, rubber plantations, and other agricultural lands, creating a patchwork of green hues across the countryside. As one moves eastward from Manimala, the terrain gradually becomes more undulating, with increasing elevation towards the Western Ghats. These hills, though not as steep or high as the main range of the Western Ghats, provide a picturesque backdrop to the region. The combination of gentle slopes and valleys creates a varied topography that is typical of the midlands of Kerala.

Suitability for Large-scale Solar PV

When considering areas nearby Manimala for large-scale solar photovoltaic (PV) installations, several factors come into play. The most suitable locations would ideally have the following characteristics: Firstly, relatively flat or gently sloping land would be preferable for solar PV installations. Areas to the west of Manimala, where the terrain is less hilly, could potentially offer suitable sites. These locations would require less land preparation and would be easier to develop for solar farms. Secondly, areas with minimal tree cover and vegetation would be more appropriate for solar PV projects. While the region is generally lush, there may be pockets of cleared land or areas with less dense vegetation that could be utilized. These might include former agricultural lands or areas that have been previously developed. Thirdly, locations with good road access would be advantageous for the construction and maintenance of solar installations. The areas closer to major roads and highways in the vicinity of Manimala would be more suitable from this perspective. Lastly, it's important to consider the proximity to existing electrical infrastructure. Areas near power substations or major transmission lines would be more favorable for connecting large-scale solar PV systems to the grid. Given these criteria, the most suitable areas for large-scale solar PV installations near Manimala would likely be found in the more open, less densely vegetated regions to the west and southwest of the town. These areas tend to have flatter terrain and potentially better infrastructure connections. However, a detailed site-specific assessment would be necessary to determine the most optimal locations for such projects, taking into account local land use, environmental considerations, and community factors.

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 Manimala, India
Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Saturday 1st of March 2025
Last Updated: Monday 21st of July 2025

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