Tezpur, Assam, India, situated in the Northern Sub Tropics, offers a promising location for solar PV energy generation throughout the year. The city's geographical coordinates (26.6351, 92.803) provide favorable conditions for harnessing solar power, with varying levels of efficiency across different seasons.

Seasonal Solar Performance

Solar energy production in Tezpur fluctuates across the four meteorological seasons. Spring emerges as the most productive period, with an impressive output of 5.47 kWh per day for each kilowatt of installed solar capacity. Autumn follows closely, generating 4.93 kWh/day, while summer yields 4.64 kWh/day. Winter experiences a slight dip in production, with 4.05 kWh/day, but still maintains a respectable output.

Optimal Panel Positioning

To maximize year-round solar energy production in Tezpur, Assam, fixed solar panels should be tilted at a 26-degree angle facing south. This optimal tilt angle ensures the panels capture the maximum amount of sunlight throughout the year, accounting for the Earth's elliptical orbit and the location's specific latitude.

Environmental Considerations

While Tezpur generally offers 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 rainfall. This may temporarily reduce solar panel efficiency during these months.

To mitigate the impact of monsoon weather, consider implementing the following measures:

• Install high-quality, weather-resistant solar panels designed to perform well in humid conditions
• Ensure proper drainage systems are in place to prevent water accumulation on panels
• Implement a regular cleaning schedule to remove dust and debris, which can accumulate more quickly during the rainy season

By addressing these factors and optimizing panel placement, Tezpur can harness its solar potential effectively, making it a suitable location for year-round solar PV energy generation.

Note: The Northern Sub Tropics extend from 23.5° latitude North up to 35° latitude.

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 Tezpur

Seasonal solar PV output for Latitude: 26.6351, Longitude: 92.803 (Tezpur, 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 26° South in Tezpur, India

To maximize your solar PV system's energy output in Tezpur, India (Lat/Long 26.6351, 92.803) throughout the year, you should tilt your panels at an angle of 26° 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 Tezpur, 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 Tezpur, India. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 26° South tilt angle throughout the year.

Overall Best Summer Angle	Overall Best Autumn Angle	Overall Best Winter Angle	Overall Best Spring Angle
10° South in Summer	32° South in Autumn	42° South in Winter	20° 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 Tezpur, 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 Tezpur, 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 Tezpur, India

Tezpur, located in the northeastern Indian state of Assam, is situated in a diverse topographical region. The city itself lies on the north bank of the mighty Brahmaputra River, which dominates the landscape. The surrounding area is characterized by a mix of flat plains and gently rolling hills, with the foothills of the Himalayas rising to the north. The immediate vicinity of Tezpur is primarily composed of alluvial plains, formed by the sediment deposits of the Brahmaputra and its tributaries over millennia. These plains are generally flat and fertile, supporting extensive agriculture. As one moves away from the river, the terrain gradually becomes more undulating, with small hillocks and elevated areas interspersed throughout the landscape. To the north of Tezpur, the terrain becomes increasingly hilly as it transitions into the Himalayan foothills. This area is known for its lush green tea gardens, which thrive on the gentle slopes. The hills are generally not very high, with most elevations ranging from 100 to 500 meters above sea level.

Potential for Large-scale Solar PV

When considering areas nearby Tezpur 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, good solar radiation, and minimal land-use conflicts. The alluvial plains to the south and southeast of Tezpur present promising opportunities for solar PV development. These areas offer vast stretches of relatively flat land, which is ideal for the installation of solar panels. The lack of significant elevation changes reduces construction costs and simplifies maintenance. Another potentially suitable area lies to the west of Tezpur, where there are expanses of non-agricultural land with favorable topography. These regions receive ample sunlight and have fewer competing land uses, making them attractive for solar energy projects. However, it's important to note that the region's high rainfall and occasional flooding could pose challenges for solar installations. Therefore, slightly elevated areas or those with good drainage systems would be preferable to minimize the risk of water damage to the solar infrastructure. While the hilly areas to the north may seem appealing due to their elevation, they are generally less suitable for large-scale solar projects. The uneven terrain and potential shading from nearby hills could reduce the efficiency of solar panels. Additionally, these areas are often used for tea cultivation or are forested, which could lead to land-use conflicts. In conclusion, the most promising areas for large-scale solar PV installations near Tezpur would be the flat or gently sloping plains to the south, southeast, and west of the city. These regions offer the best combination of suitable topography, available land, and solar potential, making them ideal candidates for renewable energy development.

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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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.

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Calculate Your Optimal Solar Panel Tilt Angle: A Comprehensive Guide

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