Solar PV Analysis of Alappuzha, India
Alappuzha, Kerala, India is a great location for generating solar energy throughout the year due to its tropical climate where sunlight remains consistent. The amount of electricity that can be produced from each kilowatt of installed solar varies slightly with the seasons but stays relatively high year-round.
In summer, you can expect around 5.22 kWh/day per kW of installed solar. This drops slightly in autumn to about 4.77 kWh/day per kW, but then increases again in winter and spring to approximately 6.15 and 6.28 kWh/day per kW respectively.
Therefore, while summer provides good conditions for solar power generation, it's actually during winter and spring when you might see greater energy production at this location because these seasons have higher daily output levels.
When installing fixed solar panels here, it's ideal to tilt them at an angle of 9 degrees facing South for maximum yearly production from your PV system.
As far as local factors that could affect solar production are concerned, Alappuzha does experience a monsoon season which brings heavy rainfalls and could reduce sunlight exposure temporarily on certain days or weeks; however overall this should not significantly impact annual production totals given the generally sunny weather throughout most of the year.
To help ensure greater energy production despite these potential weather obstacles:
1) Regular maintenance checks should be performed on panels especially after heavy storms or winds to ensure they haven't been damaged or covered by debris.
2) Additionally if possible one may consider using tracking systems that follow the sun's path across the sky rather than fixed panels; these can increase efficiency by keeping your panels optimally positioned towards the sun even during less sunny periods.
3) Lastly consider installing a battery storage system so any excess power generated during peak times isn't wasted but stored for use when sunshine is less abundant such as during monsoon season or at night-time.
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 Alappuzha
Seasonal solar PV output for Latitude: 9.4897, Longitude: 76.3223 (Alappuzha, 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 9° South in Alappuzha, India
To maximize your solar PV system's energy output in Alappuzha, India (Lat/Long 9.4897, 76.3223) 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.
Seasonally adjusted solar panel tilt angles for Alappuzha, 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 Alappuzha, 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 |
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 Alappuzha, 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 Alappuzha, 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 Alappuzha, India
Alappuzha, also known as Alleppey, is a city in the southern Indian state of Kerala. The region is characterized by its flat terrain and extensive network of freshwater rivers, canals, lakes, and lagoons that form part of the Kerala backwaters. It's located near the Arabian Sea coast with an average elevation around sea level.
Regarding large-scale solar PV installations, it would be ideal to consider a few factors such as sunlight exposure (insolation), land availability and type (whether it's agricultural or non-agricultural), proximity to transmission lines or substations for grid connectivity etc.
Given Alappuzha's topography:
1) Land: Large-scale solar PV requires vast tracts of land. In Alappuzha’s case where much of the landscape comprises water bodies and wetlands which are ecologically sensitive areas, finding suitable land could be challenging. However, non-agricultural lands or degraded lands if available could be considered.
2) Sunlight: Alappuzha has a tropical climate with plenty of sunshine throughout most parts of the year which makes it conducive for solar energy generation.
3) Floating Solar Panels: Considering the abundance of water bodies in this region like Vembanad Lake (largest lake in Kerala), floating solar panel installations could also be explored. These have been implemented successfully in various parts of India and worldwide.
4) Rooftop Solar Panels: Given that large scale ground-mounted systems might face challenges due to lack space because much area is covered by water bodies & paddy fields; deploying rooftop solar panels on buildings across urban areas can serve as an alternative solution towards achieving renewable energy targets without requiring additional land resources.
Nearby regions such as Kottayam district towards east may offer more suitable conditions for large scale ground-mounted systems given its relatively higher elevations & less proportionate area covered by water bodies compared to Alapuzzha.
In any case, a detailed site-specific feasibility study would be required to ascertain the most suitable areas for large-scale solar PV in and around Alappuzha.
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!
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Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Monday 17th of June 2024
Last Updated: Monday 21st of July 2025
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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.
