Solar PV Analysis of Ilorin, Nigeria
Ilorin, Kwara State, Nigeria is a great place to generate solar energy all year round because it's in the Tropics where there's consistent sunlight throughout most of the year. The amount of electricity you can expect to get from every kilowatt of solar power installed varies by season but it's fairly high: 4.95 kilowatt-hours per day in summer, 5.64 in autumn, 5.86 in winter and 6.04 in spring.
The best times of year for generating solar energy at this location are spring and winter when the output is highest due to longer daylight hours and more direct sun exposure.
If you're installing fixed panels at this location, tilting them at an angle of 9 degrees towards the south will give you maximum production from your solar system throughout the year.
However, there could be some factors that might affect your solar production here like weather or environmental conditions. For instance, Ilorin has a tropical wet and dry climate which means during certain periods there could be heavy rainfall or cloud cover that may reduce sunlight availability thus affecting solar power generation.
To mitigate these potential issues, one could consider installing adjustable tilt panels that can be adjusted based on seasonal changes for optimum sunlight capture despite varying weather conditions. Also ensuring regular maintenance such as cleaning off any dust or debris gathered on panels would help maintain efficiency over time.
In terms of local factors impeding solar production; while not significant enough to deter installation altogether they should still be taken into consideration when planning for optimal performance and longevity of your system.
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 50 locations across Nigeria. This analysis provides insights into each city/location's potential for harnessing solar energy through PV installations.
Link: Solar PV potential in Nigeria by location
Solar output per kW of installed solar PV by season in Ilorin
Seasonal solar PV output for Latitude: 8.4929, Longitude: 4.5642 (Ilorin, Nigeria), 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 Ilorin, Nigeria
To maximize your solar PV system's energy output in Ilorin, Nigeria (Lat/Long 8.4929, 4.5642) 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 Ilorin, Nigeria
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 Ilorin, Nigeria. 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 |
|---|---|---|---|
| 8° North in Summer | 15° South in Autumn | 24° South in Winter | 2° 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 Ilorin, Nigeria
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 Ilorin, Nigeria.
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 Ilorin, Nigeria
Ilorin, Nigeria is located in the transitional zone between tropical rainforest to the south and savannah to the north. The topography around Ilorin is relatively flat with few hills or mountains, which makes it suitable for large-scale solar PV installations.
The areas most suited for large-scale solar PV would be those that are flat and open, with minimal shading from trees or buildings. This allows for maximum exposure to sunlight throughout the day. Additionally, areas that are not used for agriculture or housing would be ideal so as not to displace existing land uses.
In terms of specific locations near Ilorin that could potentially host a large-scale solar PV installation, these may include:
1) Areas along the A123 highway towards Jebba: These regions appear less densely populated and have potential access to major roadways for transportation of equipment and materials.
2) North-eastern outskirts of Ilorin: Satellite imagery suggests this area has less dense vegetation cover compared to other parts of the region.
3) Regions near Afon town: Located southwest of Ilorin, this area also seems relatively open according to satellite images.
However, any decision on where exactly a large scale solar farm should be placed needs thorough site assessments including environmental impact studies.
Citation Guide
Article Details for Citation
Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Tuesday 30th of April 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.
