Solar PV Analysis of Coimbatore, India
Situated at a latitude of 11.0142 and longitude of 76.9941, Coimbatore, Tamil Nadu, India presents an advantageous location for the installation of solar photovoltaic (PV) systems due to its year-round exposure to sunlight. The average daily energy production per kilowatt (kW) of installed solar capacity varies by season: it is approximately 4.76 kilowatt-hours (kWh) in Summer, 4.37 kWh in Autumn, 5.61 kWh in Winter, and peaks at about 6.32 kWh during Spring.
Coimbatore's tropical climate is characterized more by alternating wet and dry periods than extreme temperature fluctuations; this contributes to relatively consistent solar energy production throughout the year with a noticeable increase during Spring months when conditions are typically drier and sunnier.
For fixed panel installations in Coimbatore, Tamil Nadu, tilting the panels at an angle of approximately 11 degrees towards the South optimizes their exposure to sunlight and enhances energy production efficiency.
While there are no significant weather or topographical factors that would severely impede solar power generation in this region, occasional heavy rainfall during monsoon seasons could potentially reduce output due to decreased sunlight penetration. To mitigate this effect as much as possible, it is recommended that panels be kept clean and free from debris so they can capture maximum available light even under less than optimal conditions.
Moreover, considering potential dust accumulation from local environmental factors might slightly affect panel efficiency over time; regular maintenance including periodic cleaning would help ensure optimal performance year-round.
In conclusion, Coimbatore's geographical positioning along with its tropical climate make it a suitable location for harnessing solar power throughout the year with minimal impediments.
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 Coimbatore
Seasonal solar PV output for Latitude: 11.0142, Longitude: 76.9941 (Coimbatore, 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 11° South in Coimbatore, India
To maximize your solar PV system's energy output in Coimbatore, India (Lat/Long 11.0142, 76.9941) throughout the year, you should tilt your panels at an angle of 11° 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 Coimbatore, 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 Coimbatore, India. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 11° South tilt angle throughout the year.
| Overall Best Summer Angle | Overall Best Autumn Angle | Overall Best Winter Angle | Overall Best Spring Angle |
|---|---|---|---|
| 5° North in Summer | 16° South in Autumn | 26° South in Winter | 5° 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 Coimbatore, 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 Coimbatore, 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 Coimbatore, India
The topography around Coimbatore, India is mostly flat with low hills in the north and east. Areas near the city that are most suited to large-scale solar PV installations would be on any open land or rooftops in the urban area that have unobstructed access to direct sunlight. The surrounding countryside also has many areas of flat terrain that could be suitable for installing photovoltaic panels. Additionally, some of the higher elevations just outside of town may provide an ideal location as they will receive more hours of direct sunlight than lower areas.
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: Wednesday 2nd of August 2023
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.
