Solar PV Analysis of Winnie Mandela, South Africa
The location of Winnie Mandela, Masilonyana Municipality, South Africa, situated in the Southern Sub Tropics, offers a promising environment for solar PV energy generation throughout the year. This area experiences varying levels of solar potential across different seasons, providing a consistent source of renewable energy.
Seasonal Solar Performance
Solar energy production in Winnie Mandela demonstrates significant seasonal fluctuations. Spring emerges as the most productive season, with an impressive output of 7.57 kWh per day for each kilowatt of installed solar capacity. Summer follows closely behind, generating 7.03 kWh/day. Autumn sees a moderate decrease in production at 5.79 kWh/day, while winter experiences the lowest output at 4.64 kWh/day per kW installed.
These figures indicate that the location is particularly well-suited for solar energy generation during the spring and summer months. However, even during the less productive winter season, the area still maintains a respectable level of solar output.
Optimal Panel Installation
To maximize year-round solar energy production in Winnie Mandela, Masilonyana Municipality, fixed solar panels should be tilted at an angle of 26 degrees facing North. This optimal angle takes into account the location's latitude and the sun's position throughout the year, ensuring the most efficient capture of solar radiation across all seasons.
Environmental Considerations
While Winnie Mandela generally offers favorable conditions for solar energy production, there are a few environmental factors to consider:
- Dust and pollen: The area may experience periods of increased dust or pollen in the air, which can accumulate on solar panels and reduce their efficiency.
- Occasional cloud cover: Although generally sunny, the region may experience periods of cloud cover, particularly during the winter months.
To mitigate these potential issues, regular cleaning and maintenance of solar panels is recommended. Additionally, investing in high-quality, weather-resistant panels and considering a tracking system to follow the sun's path can help maximize energy production throughout the year.
Overall, Winnie Mandela's location presents an excellent opportunity for solar PV energy generation, with strong potential across all seasons and particularly favorable conditions during spring and summer.
Note: The Southern Sub Tropics extend from -23.5° latitude South down to -35° latitude.
So far, we have conducted calculations to evaluate the solar photovoltaic (PV) potential in 196 locations across South Africa. This analysis provides insights into each city/location's potential for harnessing solar energy through PV installations.
Link: Solar PV potential in South Africa by location
Solar output per kW of installed solar PV by season in Winnie Mandela
Seasonal solar PV output for Latitude: -28.6976416, Longitude: 26.4520605 (Winnie Mandela, South Africa), 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° North in Winnie Mandela, South Africa
To maximize your solar PV system's energy output in Winnie Mandela, South Africa (Lat/Long -28.6976416, 26.4520605) throughout the year, you should tilt your panels at an angle of 26° North 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 Winnie Mandela, South Africa
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 Winnie Mandela, South Africa. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 26° North tilt angle throughout the year.
| Overall Best Summer Angle | Overall Best Autumn Angle | Overall Best Winter Angle | Overall Best Spring Angle |
|---|---|---|---|
| 13° North in Summer | 34° North in Autumn | 44° North in Winter | 22° North 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 Winnie Mandela, South Africa
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 Winnie Mandela, South Africa.
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 Winnie Mandela, South Africa
The area around Winnie Mandela, South Africa, is characterized by relatively flat terrain typical of the Free State province. This region is part of the Highveld, a large plateau that covers much of the central and eastern parts of South Africa. The landscape is generally open and gently undulating, with occasional low hills and shallow valleys.
The topography in this area is primarily composed of grasslands and scattered shrubs, with few trees outside of cultivated areas. The elevation is approximately 1,300 to 1,400 meters above sea level, which contributes to the region's cooler climate compared to coastal areas. The terrain is mostly comprised of sedimentary rocks, with some areas featuring exposed sandstone and shale formations.
For large-scale solar PV installations, the areas most suited would be the expansive, flat, and open spaces that are abundant in this region. These locations offer several advantages for solar energy production:
- Minimal shading from natural features or structures
- Easy access for construction and maintenance
- Ample space for large arrays of solar panels
- Good exposure to sunlight throughout the day
The best locations for solar PV installations would be on the flat, open grasslands away from any significant settlements or agricultural areas. Areas to the north and west of Winnie Mandela would likely be particularly suitable, as they tend to have fewer built-up areas and more open space. These regions also benefit from the high altitude and clear skies typical of the Highveld, which can enhance solar energy production.
It's important to note that while the topography is generally favorable for solar PV, other factors such as grid connectivity, land ownership, and environmental considerations would also need to be taken into account when selecting specific sites for large-scale solar installations in this area.
South Africa solar PV Stats as a country
South Africa ranks 21st in the world for cumulative solar PV capacity, with 6,221 total MW's of solar PV installed. This means that 2.00% of South Africa's total energy as a country comes from solar PV (that's 34th in the world). Each year South Africa is generating 105 Watts from solar PV per capita (South Africa ranks 38th in the world for solar PV Watts generated per capita). [source]
Are there incentives for businesses to install solar in South Africa?
Yes, there are several incentives for businesses wanting to install solar energy in South Africa. The government offers a range of financial incentives and tax breaks for businesses that invest in renewable energy projects. These include the Renewable Energy Feed-in Tariff (REFIT) program, which provides long-term contracts with guaranteed prices for electricity generated from renewable sources; the Accelerated Depreciation Allowance (ADA), which allows businesses to deduct up to 50% of their capital expenditure on renewable energy projects from their taxable income; and the Small Scale Embedded Generation (SSEG) program, which provides financial support for small-scale solar installations. Additionally, some local governments offer grants or subsidies to help offset the cost of installing solar systems.
Do you have more up to date information than this on incentives towards solar PV projects in South Africa? Please reach out to us and help us keep this information current. Thanks!
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Article Details for Citation
Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Monday 5th of August 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.
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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.
