Defining Net Zero

Nomenclature - Defining Zero Energy Buildings

Definitions of key terms applied to the zero energy building definitions.   Annual: Covering at least one period of 12 consecutive months for all energy measurements.   Building: A structure wholly or partially enclosed within exterior walls, or within exterior and party…

Finding Common Ground: Defining Zero Energy Buildings

Buildings that produce more energy than they consume have moved from concept to increasingly common reality in recent years. But until a few months ago, no general, industry-wide agreement existed as to what exactly defined such a building.