Robertsganj, Uttar Pradesh, located in the Northern Sub Tropics of India, offers a promising location for solar PV energy generation throughout the year. The site's potential for solar power production varies across seasons, with some periods being more favorable than others.
Seasonal Solar Performance
Spring stands out as the most productive season, with an impressive daily output of 6.39kWh per kW of installed solar capacity. This high yield makes spring an ideal time for maximizing solar energy generation in Robertsganj. Summer and autumn follow closely behind, with daily outputs of 4.85kWh and 4.80kWh respectively per kW of installed solar. These seasons still offer substantial energy production, though not quite reaching the peak levels seen in spring. Winter experiences a slight dip in performance, producing 4.23kWh per day for each kW of installed capacity. While this represents the lowest seasonal output, it's important to note that solar energy generation remains viable even during the cooler months.Optimal Panel Installation
To maximize year-round solar energy production in Robertsganj, Uttar Pradesh, fixed solar panels should be tilted at an angle of 23 degrees facing south. This optimal angle takes into account the location's latitude and the sun's position throughout the year, ensuring the panels capture as much sunlight as possible across all seasons.Environmental Considerations
While Robertsganj generally offers favorable conditions for solar energy production, there are some environmental factors to consider: 1. Dust and air pollution: The region may experience periods of increased dust and air pollution, which can accumulate on solar panels and reduce their efficiency. 2. Monsoon season: Heavy rainfall during the monsoon months could temporarily impact solar output. To mitigate these issues, regular cleaning and maintenance of solar panels is crucial. Installing panels at the recommended angle can also help with natural cleaning during rainfall. Additionally, using high-quality, dust-resistant panels and implementing a robust cleaning schedule can help maintain optimal performance throughout the year. In conclusion, Robertsganj presents a highly suitable location for solar PV energy generation, with strong potential across all seasons and particularly excellent performance during spring. By addressing environmental factors through proper installation and maintenance, solar energy systems in this area can achieve consistent and efficient power production year-round.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 Robertsganj
Seasonal solar PV output for Latitude: 24.6902, Longitude: 83.0688 (Robertsganj, 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 23° South in Robertsganj, India
To maximize your solar PV system's energy output in Robertsganj, India (Lat/Long 24.6902, 83.0688) throughout the year, you should tilt your panels at an angle of 23° 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 Robertsganj, 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 Robertsganj, India. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 23° South tilt angle throughout the year.
| Overall Best Summer Angle | Overall Best Autumn Angle | Overall Best Winter Angle | Overall Best Spring Angle |
|---|---|---|---|
| 9° South in Summer | 30° South in Autumn | 39° South in Winter | 19° 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 Robertsganj, 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 Robertsganj, 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 Robertsganj, India
The topography around Robertsganj, India, located at latitude 24.6902 and longitude 83.0688, is characterized by a diverse landscape that reflects the region's geological history and natural features. This area is situated in the southeastern part of Uttar Pradesh state, near the border with Madhya Pradesh. The terrain surrounding Robertsganj is primarily composed of rolling hills and plateaus, interspersed with flat plains and river valleys. The region is part of the larger Vindhya Range, an ancient mountain system that stretches across central India. These hills, though not particularly high, create a rugged and varied landscape that contrasts with the flatter areas of the Indo-Gangetic plain to the north. To the south and southeast of Robertsganj, the terrain becomes more elevated and forested as it transitions into the Kaimur Range, a subrange of the Vindhyas. This area is known for its rocky outcrops, steep escarpments, and dense deciduous forests. The Son River, a major tributary of the Ganges, flows through the region, carving out valleys and creating alluvial plains along its course.
Potential Areas for Large-Scale Solar PV
When considering areas near Robertsganj that would be most suited for large-scale solar photovoltaic (PV) installations, several factors come into play. The ideal locations would have ample sunlight exposure, relatively flat terrain, and good accessibility. The flat plains and gently rolling areas to the north and northeast of Robertsganj present promising opportunities for solar PV development. These areas typically receive abundant sunlight throughout the year and offer easier construction and maintenance conditions compared to the more rugged terrain to the south. Additionally, the plateaus found in the region could serve as excellent sites for solar farms. These elevated, flat-topped landforms often have minimal vegetation and unobstructed exposure to sunlight, making them ideal for maximizing solar energy capture. Areas along the Son River valley, where the terrain flattens out, might also be suitable for large-scale solar installations. However, care must be taken to avoid flood-prone zones and to preserve agricultural lands that rely on the river's water. It's important to note that while the hilly areas to the south may receive good sunlight, their uneven terrain and forest cover make them less ideal for large-scale solar projects. These areas would require significant land clearing and leveling, which could have negative environmental impacts and increase project costs. In conclusion, the diverse topography around Robertsganj offers several potential sites for large-scale solar PV development, with the flatter areas to the north and the plateaus scattered throughout the region being the most promising locations.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: Thursday 30th of January 2025
Last Updated: Monday 21st of July 2025
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Compare this location to others worldwide for solar PV potential
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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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