Eldoret, Uasin Gishu County, Kenya, situated at latitude 0.5171 and longitude 35.265, presents a highly favorable location for solar energy production throughout the year. This tropical setting benefits from consistent sunlight, with seasons primarily characterized by wet and dry periods rather than traditional temperature-based seasons.

Year-round Solar Performance

The solar energy output in Eldoret remains relatively stable across all meteorological seasons. Spring sees the highest production at 6.86 kWh per day for each kilowatt of installed solar capacity. This is closely followed by autumn with 6.64 kWh/day, winter with 6.53 kWh/day, and summer with 5.88 kWh/day. These figures indicate a remarkably consistent solar energy potential throughout the year, with only minor fluctuations between seasons.

Optimal Panel Tilt

For fixed solar panel installations in Eldoret, Uasin Gishu County, the ideal tilt angle to maximize year-round energy production is just 1 degree South. This nearly horizontal orientation is due to the location's proximity to the equator, where the sun's path remains relatively high in the sky throughout the year.

Environmental Considerations

While Eldoret's climate is generally conducive to solar energy production, there are a few factors to consider: 1. Dust and debris: During dry seasons, dust accumulation on panels can reduce efficiency. Regular cleaning and maintenance can mitigate this issue. 2. Rainfall: The wet seasons may lead to temporary reductions in solar output due to cloud cover. However, the rain also helps naturally clean the panels, which can improve overall performance. 3. Temperature: High temperatures can slightly reduce solar panel efficiency. Ensuring proper ventilation and using temperature-resistant panels can help maintain optimal performance.

Preventative Measures

To maximize solar energy production in Eldoret, Uasin Gishu County, consider implementing the following measures: 1. Use high-quality, temperature-resistant solar panels designed for tropical climates. 2. Install panels with a slight tilt (1 degree South) to facilitate natural cleaning by rainwater and prevent dust accumulation. 3. Implement a regular cleaning and maintenance schedule, especially during dry seasons. 4. Consider a tracking system to follow the sun's path, potentially increasing energy yield by up to 30%. In conclusion, Eldoret's location near the equator provides an excellent opportunity for consistent, year-round solar energy production. With proper installation and maintenance, solar PV systems in this area can operate at high efficiency levels throughout the year.

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 13 locations across Kenya. This analysis provides insights into each city/location's potential for harnessing solar energy through PV installations.

Link: Solar PV potential in Kenya by location

Solar output per kW of installed solar PV by season in Eldoret

Seasonal solar PV output for Latitude: 0.5171, Longitude: 35.265 (Eldoret, Kenya), 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 1° South in Eldoret, Kenya

To maximize your solar PV system's energy output in Eldoret, Kenya (Lat/Long 0.5171, 35.265) throughout the year, you should tilt your panels at an angle of 1° 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 Eldoret, Kenya

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 Eldoret, Kenya. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 1° South tilt angle throughout the year.

Overall Best Summer Angle	Overall Best Autumn Angle	Overall Best Winter Angle	Overall Best Spring Angle
15° North in Summer	7° South in Autumn	16° South in Winter	6° 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 Eldoret, Kenya

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 Eldoret, Kenya.

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 Eldoret, Kenya

Eldoret, a city in western Kenya, is situated in a region characterized by diverse and dynamic topography. The landscape surrounding Eldoret is a mix of rolling hills, plateaus, and expansive plains, creating a picturesque setting for this bustling urban center. The city itself sits at an elevation of approximately 2,100 meters (6,900 feet) above sea level, making it one of the higher-altitude major cities in Kenya. This elevation contributes to Eldoret's relatively cool and pleasant climate compared to lower-lying areas of the country. To the north and east of Eldoret, the terrain gradually rises, forming part of the Cherangani Hills. These hills are characterized by steep slopes, deep valleys, and forested areas. The hills play a crucial role in the local ecosystem and are an important water catchment area for the region. South and west of Eldoret, the landscape transitions into more gently rolling hills and expansive plateaus. This area is part of the Uasin Gishu Plateau, known for its fertile soils and agricultural productivity. The plateau extends for many kilometers, creating a vast, open landscape dotted with farms and small settlements.

Potential for Large-Scale Solar PV

When considering areas near Eldoret for large-scale solar photovoltaic (PV) installations, several factors come into play. The most suitable locations would typically be found in the flatter, more open areas to the south and west of the city, on the Uasin Gishu Plateau. These areas offer several advantages for solar PV development: Firstly, the relatively flat terrain of the plateau provides ample space for large solar arrays without the need for significant land preparation or terracing. This can reduce construction costs and environmental impact. Secondly, the open nature of the landscape means there are fewer obstacles that could cast shadows on solar panels, maximizing their exposure to sunlight throughout the day. Thirdly, the higher elevation of the region can be beneficial for solar energy production. The thinner atmosphere at higher altitudes allows for more direct sunlight to reach the panels, potentially increasing their efficiency. However, it's important to note that any large-scale solar PV project would require detailed site-specific assessments. Factors such as proximity to power infrastructure, land ownership, and environmental considerations would all need to be carefully evaluated before determining the most suitable locations for solar development in the region around Eldoret.

Kenya solar PV Stats as a country

Kenya ranks 77th in the world for cumulative solar PV capacity, with 147 total MW's of solar PV installed. Each year Kenya is generating 3 Watts from solar PV per capita (Kenya ranks 85th in the world for solar PV Watts generated per capita). [source]

Are there incentives for businesses to install solar in Kenya?

Yes, there are several incentives for businesses wanting to install solar energy in Kenya. These include the Feed-in Tariff (FiT) program, which provides a guaranteed price for electricity generated from renewable sources; the Renewable Energy Fund, which provides grants and loans to support renewable energy projects; and the Solar Home System Program, which offers subsidies for households to purchase solar home systems. Additionally, businesses may be eligible for tax credits or other financial incentives from local governments.

Do you have more up to date information than this on incentives towards solar PV projects in Kenya? 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.

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.