The global e-house market size was estimated at USD 1.72 billion in 2024 and is projected to reach USD 3.05 billion by 2033, growing at a CAGR of 6.56% from 2025 to 2033. E-Houses (Electrical Houses) are modular, prefabricated electrical substations integrating switchgear, transformers, and control systems into a compact, factory-built structure.