nZEB Design: Challenging between Energy and Economic Targets

Abstract Currently nZEB design represents a negotiation between energy targets and economic concerns. Whereby, it is indispensable that, staring from very preliminary phase of the project, a synergy between the building and system designers, the energy consultant and the economic valuer is set up. Cost-optimal methodology together with statistical analyses developed with Minitab software was applied to analyze a new high performing single-family house, in Northern Italy, in order to define how energy and economic aspects could influence the preliminary design phase of the project.