A decarbonized society involves people living and working in low-energy and low-emission buildings. An a smart multi-Terminal DC μ-grids interconnecting several autonomous zero-net energy buildings allow the transition to a decarbonized economy, however, involves several challenges. This paper describes the interactions between the intrinsic concepts related to development of a smart multi-terminal DC μ-grids for autonomous zero-net energy buildings. Each individual concept provides several advantages but also create several colliding restrictions with other, this paper connects all concepts together considering interactions in other to maximize the total benefit. Also, discussions about the feasibility and impact of the individual concepts on the whole interaction are included.