Is Your Building Operating at Net Zero Energy or Zero Carbon?

ANSI/ASHRAE Standard 228, Standard Method of Evaluating Zero Net Energy and Zero Net Carbon Building Performance, contains a method of evaluating a building, or group of buildings, to determine if they’ve achieved “zero net energy” and/or “zero net carbon” operation. This article outlines measurement methods contained in Standard 228, details of its development and how it compares and interacts with other carbon-related ASHRAE standards.