Solar PV Analysis of Dokki, Egypt
Dokki, a district in Giza, Egypt, situated at 30.0347°N, 31.2059°E, offers a promising location for solar PV energy generation throughout the year. This Northern Sub-Tropical area experiences substantial sunlight, making it conducive to solar power production.
Seasonal Solar Performance
The solar energy output in Dokki varies across seasons, with summer being the most productive period. During summer months, a 1kW solar installation can generate an impressive 8.45kWh per day. Spring follows closely, with a daily output of 7.53kWh. Autumn sees a moderate decrease to 5.62kWh per day, while winter experiences the lowest production at 4.01kWh daily.
Optimal Panel Positioning
To maximize year-round solar energy production in Dokki, fixed solar panels should be tilted at a 26-degree angle facing south. This orientation ensures optimal exposure to sunlight throughout the year, considering the location's latitude and the Earth's orbit.
Peak Generation Periods
The most ideal times for solar energy generation in Dokki are during summer and spring. These seasons offer longer daylight hours and more direct sunlight, resulting in higher energy yields. However, the location's favorable climate allows for significant energy production even during autumn and winter months.
Environmental Considerations
While Dokki presents an overall favorable environment for solar energy, there are a few factors to consider:
- Dust and sand: The region's arid climate can lead to dust accumulation on solar panels, potentially reducing efficiency.
- High temperatures: Extreme heat during summer months may slightly decrease panel efficiency.
To mitigate these issues, regular cleaning of solar panels is essential to maintain optimal performance. Additionally, installing panels with adequate ventilation and using heat-resistant materials can help combat efficiency loss due to high temperatures. Despite these minor challenges, Dokki remains an excellent location for solar PV energy generation, with its abundant sunlight and relatively stable climate throughout the year.
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 80 locations across Egypt. This analysis provides insights into each city/location's potential for harnessing solar energy through PV installations.
Link: Solar PV potential in Egypt by location
Solar output per kW of installed solar PV by season in Dokki
Seasonal solar PV output for Latitude: 30.0347, Longitude: 31.2059 (Dokki, Egypt), 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° South in Dokki, Egypt
To maximize your solar PV system's energy output in Dokki, Egypt (Lat/Long 30.0347, 31.2059) throughout the year, you should tilt your panels at an angle of 26° 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 Dokki, Egypt
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 Dokki, Egypt. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 26° South 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 | 35° South in Autumn | 45° South in Winter | 23° 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 Dokki, Egypt
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 Dokki, Egypt.
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 Dokki, Egypt
The area around Dokki, Egypt, which is located in the western part of Greater Cairo, is predominantly flat and urbanized. Dokki sits on the western bank of the Nile River, in an area known as the Nile Delta. This region is characterized by its low-lying, alluvial plain that has been formed over millennia by sediment deposited by the Nile.
The immediate surroundings of Dokki are densely populated and built-up, with a mix of residential, commercial, and institutional buildings. The terrain is generally level, with very little natural elevation change. As you move further away from the city center, the urban density decreases, but the topography remains largely flat.
To the west of Dokki, the landscape gradually transitions into the edges of the Western Desert (also known as the Libyan Desert). This area is characterized by a gently rolling desert plain with occasional low hills and depressions. The transition from the fertile Nile Valley to the desert is quite abrupt, often referred to as the "desert's edge."
For large-scale solar PV installations, the areas best suited would be found to the west of Dokki, moving away from the densely populated Nile Valley and into the desert regions. These areas offer several advantages for solar energy production:
- Abundant open space: The desert provides vast, unoccupied areas that can accommodate large solar farms without interfering with agriculture or urban development.
- High solar irradiance: The desert climate ensures a high number of sunny days per year, maximizing potential energy production.
- Minimal shadowing: The flat terrain and lack of tall vegetation or structures reduce the risk of shadowing on solar panels.
- Lower land costs: Desert land is generally less expensive than urban or agricultural areas.
Specific regions that might be particularly suitable include the areas around the Cairo-Alexandria Desert Road and the expanses of the Western Desert beyond the immediate suburbs of Cairo. However, it's important to note that any large-scale solar project would need to consider factors such as proximity to existing power infrastructure, environmental impact, and potential sand accumulation on panels.
Egypt solar PV Stats as a country
Egypt ranks 34th in the world for cumulative solar PV capacity, with 1,675 total MW's of solar PV installed. Each year Egypt is generating 17 Watts from solar PV per capita (Egypt ranks 67th in the world for solar PV Watts generated per capita). [source]
Are there incentives for businesses to install solar in Egypt?
Yes, there are incentives for businesses wanting to install solar energy in Egypt. The Egyptian government has implemented a number of policies and programs to encourage the adoption of renewable energy sources such as solar power. These include feed-in tariffs, net metering, tax exemptions, and subsidies. Additionally, the government has established a Renewable Energy Authority (REA) to oversee the development of renewable energy projects in Egypt.
Do you have more up to date information than this on incentives towards solar PV projects in Egypt? 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: Monday 29th of July 2024
Last Updated: Monday 21st of July 2025
Tell Us About Your Work
We love seeing how our research helps others! If you've cited this article in your work, we'd be delighted to hear about it. Drop us a line via our Contact Us page or on X, to share where you've used our information - we may feature a link to your work on our site. This helps create a network of valuable resources for others in the solar energy community and helps us understand how our research is contributing to the field. Plus, we occasionally highlight exceptional works that reference our research on our social media channels.
Feeling generous?
Share this with your friends!
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.
