1. Africa: 600 million people lack electricity; strong demand, low competition; three major opportunities: ground-mounted power plants, industrial and commercial power plants, and off-grid microgrids. 2. Southeast Asia: Manufacturing relocation + explosive energy demand; Vietnam is the hottest market, Indonesia is dispersed, and the Philippines offers potential. 3. Middle East: Oil-producing countries are undergoing energy transition; strong payment capacity but high certification thresholds; SASO/ESMA certification is mandatory. 4. South Asia: India has a large market size but tariff barriers; Pakistan and Bangladesh are growing rapidly, but risk control is necessary. 5. Latin America: Brazil, Mexico, and Chile have good resource endowments, but payment risks and exchange rate fluctuations require caution. 6. Development advice: There is no best, only the most suitable; patient investment and risk control are more important than seizing opportunities.

1. Appearance Difference: A single rack vs. multiple stacked modules – the difference is immediately apparent. 2. Expandability Comparison: Stacked racks allow for the addition of battery modules, while integrated racks require parallel connection of the entire unit. 3. Maintenance Experience: With stacked racks, only faulty modules need to be replaced; with integrated racks, the entire unit is typically repaired. 4. Space Occupancy: Integrated racks save space; stacked racks require higher ceiling height. 5. Price Difference: Stacked racks are 10%-20% more expensive, but have lower long-term expansion costs. 6. Purchase Recommendation: Choose integrated racks if you don't plan to expand in the near future; choose stacked racks if you have expansion needs.