EfdeN Signature is a pioneering solar house prototype developed by a multidisciplinary team of Romanian students for the Solar Decathlon Middle East 2018 competition in Dubai. Built entirely by over 60-70 students from universities like Technical University of Civil Engineering Bucharest and Ion Mincu University of Architecture and Urbanism, it was first assembled in Bucharest\’s Băneasa Shopping City parking lot in 2018 for public viewing before disassembly and shipping for the event.
Overview
This 100% solar-powered, adaptable home spans 147 square meters and embodies a \”house-in-house\” concept, featuring an outer protective shell that creates shaded outdoor relaxation spaces while optimizing indoor light. Designed for both arid Middle Eastern climates (high heat, sandstorms, humidity) and Romania\’s temperate continental conditions, it prioritizes user comfort, health, safety, and cultural adaptability. Post-competition, it earned Romania awards including strong rankings in functioning, energy efficiency, and sustainable transport, all on a privately funded budget far lower than competitors.
Main Features
- Adaptive Shell Structure: Exterior \”carapace\” provides shading, weather protection, and ventilation, enabling seamless integration into diverse urban or rural settings.
- Smart Home Automation: Custom app controls lighting, temperature, door access, and appliances remotely, integrating electrical and mechanical systems for intuitive user experience.
- Modular and Mobile Design: Fully demountable for transport (e.g., 5,000+ km by land/sea) and 14-15 day reassembly, with high customization potential.
Sustainability Materials and Methods
EfdeN Signature relies on solar energy for full self-sufficiency, incorporating innovative efficiency tech from partners like ENGIE for production, storage, and smart grid compatibility. Materials emphasize lightweight, durable components suited to harsh conditions, with passive strategies like optimal glazing, insulation, and the shell for natural cooling/heating. Construction methods promote student-led innovation in energy-efficient HVAC, water management, and modular prefab elements, reducing on-site waste and enabling scalability.
Ecological Impact
The house minimizes environmental footprint through zero-net energy use, cutting emissions and operational costs while demonstrating viable solar reliance in extreme climates. It advances biodiversity and resource conservation via adaptive reuse potential and low-impact materials, inspiring widespread adoption of green tech in Romania and beyond. By showcasing affordable, high-performance solutions, it educates on reducing urban ecological strain, with post-competition reassembly reinforcing long-term sustainability advocacy.
