Thika, Nairobi, Kenya is a great location for generating solar energy throughout the year due to its consistent sunlight. Being in the Tropics, it experiences minimal changes in daylight hours across seasons and instead experiences wet and dry periods.
In terms of power generation, you can expect your solar panels to produce about 6.51 kilowatt-hours (kWh) of electricity per day during summer for each kilowatt (kW) of installed solar capacity. In autumn, this slightly decreases to about 6.43 kWh/day per kW; in winter it drops more significantly to around 4.80 kWh/day per kW; and then increases again in spring to approximately 6.35 kWh/day per kW.
Given these figures, the best times for generating solar energy at this location are during the summer and spring months when sunlight is most abundant.
For fixed panel installations at this location, the ideal angle to tilt your panels is actually flat or at a zero-degree angle - contrary to what one might think! This will maximize total annual production from your solar PV system.
As far as local factors that could impede solar production go, there aren't many significant ones here given Thika's tropical climate and consistent sun exposure throughout the year. However, potential issues could arise from heavy rainfall or cloud cover during wet seasons which might reduce sunlight availability temporarily.
To mitigate these potential issues when installing a solar system in Thika:
1) Ensure that your installation site has clear access to sky without any obstructions like trees or buildings blocking sunshine.
2) Regularly clean and maintain your panels especially after heavy rainfall or dust storms.
3) Consider using advanced PV modules with better performance under low light conditions.
4) If possible install an energy storage system (like batteries), so you can save excess power produced on sunny days for use on less sunny or rainy days.
Overall though, Thika's tropical climate makes it an excellent location for generating solar energy almost all year round.
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 Thika
Seasonal solar PV output for Latitude: -1.0258, Longitude: 37.0706 (Thika, 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 0° in Thika, Kenya
To maximize your solar PV system's energy output in Thika, Kenya (Lat/Long -1.0258, 37.0706) throughout the year, you should tilt your panels at an angle of 0° 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 Thika, 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 Thika, Kenya. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 0° tilt angle throughout the year.
| Overall Best Summer Angle | Overall Best Autumn Angle | Overall Best Winter Angle | Overall Best Spring Angle |
|---|---|---|---|
| 14° South in Summer | 7° North in Autumn | 16° North in Winter | 6° 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 Thika, 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 Thika, Kenya.
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 Thika, Kenya
Thika, Kenya is located in the Central Highlands region of Kenya. The topography is generally a plateau with undulating hills and valleys. The area has fertile soils due to volcanic activity in the past. It's also characterized by rivers and streams, with the Thika River being a major one.
The climate in Thika is tropical savannah, which means there's plenty of sunlight throughout the year - an ideal condition for solar PV systems. However, it's important to note that this region also experiences two rainy seasons which may affect solar energy production.
In terms of areas best suited for large-scale solar PV installations:
1) Flatlands: These are ideal because they offer unobstructed exposure to sunlight and are easier for installation.
2) Unused agricultural lands: These could be considered if they aren't fertile or suitable for farming activities anymore.
3) Industrial zones: Given Thika's status as an industrial town (it hosts several factories), rooftops or unused spaces within these zones could be utilized for solar panel installation without taking up additional land resources.
4) Areas close to power grids would also be beneficial since it reduces costs associated with power transmission infrastructure.
However, before proceeding with any large-scale project, a detailed feasibility study including factors such as local climatic conditions, land use patterns and regulations should be conducted.
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!
Citation Guide
Article Details for Citation
Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Tuesday 27th of February 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.




