Swedish firm Street Monkey Architects has unveiled new solar-powered, prefabricated modular homes in Örebro, Sweden. The row-house project was based on a similar award-winning construction project near Stockholm that was built using passive house principles but designed to complement the urban setting. The single-family structures are designed with energy efficiency in mind to promote lifestyles with smaller carbon footprints. Each home is constructed using six factory-build prefab modules that arrive to the building site already complete with finished walls, bathrooms, kitchens and finishing materials.