Green Prefab is the founder of a digital platform enabling a new generation of zero-energy buildings at affordable production costs. We are exploring supercomputers, cloud-computing, artificial intelligence, blockchain and 3D building information modeling to connect design to industrial production. The Green Prefab digital platform has been co-launched by the European Commission since 2012 and it's under market validation thanks to an International top-edge network of early clients and partners. Since 2017 Green Prefab has opened to the global market some services related to building energy analysis and digital libraries for prefabricated modular components, enabling the early business model. Green Prefab is the marketplace that connects 3D digital models to production in the field of prefabricated buildings. We deliver open digital libraries of prefabricated components such as walls, roofs, windows, doors, that architects use to create their conceptual models. Green Prefab produced a unique cloud computing app that runs engineering tests on the 3D Master Model automatically, providing stakeholders with energy efficiency analysis and cost forecast for free, even before they start to design it. And through the platform, they can buy the entire building online.