Based on Somalia's geographical environment and climate, the following areas are suitable for installing ERV (Energy Recovery Ventilation) systems:

1. Areas Suitable for ERV Installation

Northern coastal cities (such as Berbera and Bosaso)

The tropical desert climate is characterized by high temperatures and dry conditions year-round, with low humidity.

ERV systems recover cooling energy and humidity from exhaust air, significantly reducing air conditioning energy consumption while filtering dust and improving indoor air quality.

Inland plateau areas (such as Harardhere)

The terrain is high (1,500-2,000 meters above sea level), with large diurnal temperature swings and a long dry season.

ERV systems balance indoor and outdoor temperature and humidity, reducing heating/cooling demand and are particularly suitable for regulating humidity in dry air during the dry season.

Southern regions with a pronounced rainy season (such as Mogadishu)

The wet and dry seasons are distinct, with the rainy season (March-June) experiencing rapid increases in humidity and the dry season (December-February) experiencing dryness and heat. 

The system can remove moisture during the rainy season and retain humidity during the dry season, achieving year-round energy-saving ventilation; 

however, enhanced moisture-proofing and maintenance are required during the rainy season.

II. Areas Requiring Caution:

Desert inland areas: Extremely dry and prone to frequent sandstorms, high-efficiency filtration is required to prevent equipment from clogging and damage.

Regions with unstable power supply: Prioritize low-power models or backup power supplies to ensure continuous system operation.

Key Implementation Recommendations:

Climate-Adaptive Design: Focus on cooling and dehumidification in the north, while strengthening moisture-proofing in the rainy season in the south.

Sandstorm Resistance Optimization: Add multi-stage filtration to air inlets and conduct regular cleaning and maintenance.

Energy Matching: Integrate solar power to reduce grid reliance.

Summary: Northern Somalia's coastal and inland highland cities are priority deployment areas for ERV systems, which can effectively cope with the dry and hot climate. 

Targeted moisture-proofing solutions are needed in the rainy season regions of the south, while equipment protection is required in desert areas.