Solar Energy Potential in Ibb, Yemen

Ibb, Yemen, located at latitude 13.962° and longitude 44.1902° in the tropics, offers promising conditions for solar photovoltaic (PV) energy generation throughout the year. The tropical location ensures relatively consistent sunlight patterns across seasons, with weather variations primarily following wet and dry periods rather than dramatic temperature changes. Solar energy production at this location shows strong performance across all meteorological seasons. Spring stands out as the most productive period, generating an impressive 7.74 kWh per day for each kilowatt of installed solar capacity. Summer follows with 6.76 kWh/day, autumn with 6.67 kWh/day, and winter with a still respectable 6.36 kWh/day per kilowatt installed. For residents or organizations considering solar installation in Ibb, these figures represent excellent year-round energy potential. The relatively small variation between seasons (with spring outperforming winter by approximately 22%) indicates consistent reliability throughout the year, making solar a dependable energy source for this location.

Optimal Panel Installation

For fixed solar panel installations in Ibb, the ideal tilt angle to maximize year-round energy production is 13 degrees facing South. This specific angle has been calculated by analyzing the daily solar elevation patterns at this latitude, weighted by the solar irradiance potential throughout the year. This optimal angle accounts for the Earth's elliptical orbit and ensures the panels capture maximum sunlight across all seasons.

Environmental Considerations

Despite the favorable solar conditions, several environmental factors in Ibb may affect solar PV performance:

• Dust accumulation: Yemen's arid climate can lead to significant dust buildup on panels, potentially reducing efficiency by 10-40% if not addressed.
• Seasonal rainfall patterns: While rain can naturally clean panels, the distinct wet and dry seasons mean panels may require manual cleaning during extended dry periods.
• Potential for sandstorms: These weather events can temporarily reduce solar output and cause abrasion to panel surfaces over time.

Preventative Measures

To maximize solar energy production in Ibb, several preventative measures are recommended: Implementing a regular cleaning schedule is essential, particularly during dry seasons when dust accumulation is highest. Installing panels at the recommended 13-degree tilt not only optimizes sunlight capture but also facilitates natural cleaning during rainfall events. Consider protective glass coatings specifically designed for desert environments to minimize dust adhesion and resist sand abrasion. Additionally, investing in a monitoring system that alerts to unexpected drops in performance can help identify when cleaning or maintenance is needed. For larger installations, automated cleaning systems may prove cost-effective despite their higher initial investment. These systems can maintain optimal performance without requiring frequent manual intervention in this sometimes challenging environment.

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

Link: Solar PV potential in Yemen by location

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

Seasonal solar PV output for Latitude: 13.962, Longitude: 44.1902 (Ibb, Yemen), 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 13° South in Ibb, Yemen

To maximize your solar PV system's energy output in Ibb, Yemen (Lat/Long 13.962, 44.1902) throughout the year, you should tilt your panels at an angle of 13° 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 Ibb, Yemen

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 Ibb, Yemen. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 13° South tilt angle throughout the year.

Overall Best Summer Angle	Overall Best Autumn Angle	Overall Best Winter Angle	Overall Best Spring Angle
2° North in Summer	20° South in Autumn	30° South in Winter	8° 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 Ibb, Yemen

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 Ibb, Yemen.

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 Ibb, Yemen

The topography surrounding Ibb, Yemen is characterized by dramatic mountainous terrain that forms part of the western Yemen highlands. Located at approximately 2,000 meters above sea level, Ibb sits within a region of steep valleys, terraced hillsides, and rugged mountain peaks. The landscape features significant elevation changes, with mountains rising to heights exceeding 3,000 meters in some areas of the governorate. Ibb is nestled in what is often called the "Green Governorate" due to its relatively abundant rainfall compared to other parts of Yemen. This precipitation supports agricultural activities across the terraced hillsides that have been cultivated for centuries. The terrain consists of a complex network of valleys (wadis) that cut through the mountains, creating a varied topographical profile throughout the region.

Solar PV Potential Areas

The mountainous topography around Ibb presents both challenges and opportunities for large-scale solar photovoltaic installations. Several nearby areas show particular promise for solar development: The eastern plains extending toward Dhamar Governorate offer more level terrain with fewer shading issues from mountains. These areas receive strong solar radiation and have gentler slopes that would reduce construction complexity and costs for large installations. South of Ibb, where the highlands begin to descend toward Taiz, there are several plateau areas with favorable conditions for solar farms. These locations combine relatively flat terrain with good solar exposure and fewer competing land uses than the densely cultivated areas immediately surrounding Ibb city. The northern reaches of Al-Dhale'e Governorate, bordering Ibb's southern regions, include several expansive areas with suitable topography for solar installations. These locations feature less agricultural development than Ibb's central valleys while maintaining good accessibility to existing infrastructure. For optimal solar PV placement, the ideal sites would be south-facing slopes or plateaus at elevations that remain above the occasional fog and cloud cover that can affect the lowest valleys in the region. Areas with minimal risk of flooding and rockslides would be preferable, avoiding the steepest terrain and narrow wadis that characterize much of the immediate surroundings of Ibb city itself. While the mountainous nature of the region limits the availability of very large contiguous flat areas, the abundant sunshine throughout the year makes even moderately suitable sites potentially productive for solar energy generation. The most promising locations combine accessibility to the existing power grid with topographical features that minimize the need for extensive grading and earthwork.

Yemen solar PV Stats as a country

Yemen ranks 67th in the world for cumulative solar PV capacity, with 253 total MW's of solar PV installed. Each year Yemen is generating 8 Watts from solar PV per capita (Yemen ranks 75th in the world for solar PV Watts generated per capita). [source]

Are there incentives for businesses to install solar in Yemen?

Unfortunately, there are currently no incentives for businesses wanting to install solar energy in Yemen. The country is facing a severe economic crisis and the government does not have the resources to provide any financial support for renewable energy projects. However, some international organizations such as the World Bank and UNDP have been providing technical assistance to help develop renewable energy projects in Yemen.

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