Exclusive Data – Technical Reference

    Solar Irradiance Data for Yemeni Cities

    Field-verified technical data based on 2000+ projects and 10 years of fieldwork across Yemeni governorates, cross-referenced with NASA POWER. This data is actively used by Al-Qatta engineering team in every solar system design.

    CityPSHTiltH/L °CDustHumidityAnnual Yield
    Sana'a615° S25° / 10°MediumLow1780 kWh/kWp
    Aden6.513° S35° / 25°LowVery High1920 kWh/kWp
    Taiz5.814° S28° / 15°LowMedium1710 kWh/kWp
    Hudaydah6.214° S38° / 25°MediumVery High1830 kWh/kWp
    Marib6.515° S38° / 20°Very HighLow1920 kWh/kWp
    Ibb5.214° S22° / 12°LowMedium1530 kWh/kWp
    Dhamar5.815° S23° / 5°MediumLow1710 kWh/kWp

    Sana'a

    High altitude (2300m) reduces heat and boosts panel efficiency. Main challenge: seasonal dust.

    6 kWh/m²/d15°Best: March – October

    Aden

    Excellent year-round irradiance. Challenge: humidity and salt fog require corrosion-resistant panels.

    6.5 kWh/m²/d13°Best: January – December (year-round)

    Taiz

    Moderate climate good for battery longevity. Seasonal rain helps clean panels naturally.

    5.8 kWh/m²/d14°Best: February – November

    Hudaydah

    High heat and humidity. Use panels with low temperature coefficient and well-ventilated mounting.

    6.2 kWh/m²/d14°Best: February – November

    Marib

    Highest solar irradiance in Yemen with excellent dryness. Major challenge: dust needs weekly cleaning.

    6.5 kWh/m²/d15°Best: March – October

    Ibb

    Lower irradiance due to clouds/rain, but cool temperatures notably boost panel efficiency.

    5.2 kWh/m²/d14°Best: March – October

    Dhamar

    Cold winters (down to 5°C) require lithium batteries with internal heating like Pylontech.

    5.8 kWh/m²/d15°Best: March – October

    FAQ: Solar Energy by Yemeni City

    Which Yemeni city is best for solar energy?

    Marib and Aden lead with 6.5 peak sun hours daily, followed by Hudaydah (6.2) then Sanaa (6.0). Each city has unique challenges that must be considered during system design.

    Does solar system cost differ between Yemeni cities?

    Yes. High-temperature cities (Aden, Hudaydah) need panels with better temperature coefficients, and dusty cities (Marib) may need extra panels to offset dust losses. Our team accounts for these factors.

    How much do solar panels produce annually in Yemen?

    Annual yield ranges from 1530 kWh/kWp in Ibb (lowest) to 1920 kWh/kWp in Aden and Marib (highest). A 580W panel in Aden produces about 1114 kWh annually.

    Want a solar system designed for your city?

    Our engineering team uses this field data to design precise systems that perform optimally in your city conditions.

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