How many months of metered energy use after occupancy are required to earn Energy and...

The Energy and Atmosphere Prerequisite, Minimum Energy Performance requires 12 months of metered energy use data after occupancy. This duration is necessary to provide a comprehensive view of the building’s energy consumption patterns throughout the different seasons of the year.

References: The LEED v4.1 O+M reference guide specifies that a full year of energy data is needed to accurately assess a building’s performance for the Minimum Energy Performance prerequisite1234.

To fulfill the Energy and Atmosphere Prerequisite, Minimum Energy Performance, LEED requires a building to demonstrate energy use through 12 months of metered energy datapost-occupancy. This duration ensures that a full annual cycle is considered, accounting for seasonal variations in energy consumption. The data collected over this period provides a comprehensive overview of the building's energy performance, enabling accurate benchmarking against LEED standards and identifying opportunities for energy efficiency improvements.

References:This requirement is specified in the LEED AP Operations + Maintenance reference guide, under the section detailing the Energy and Atmosphere Prerequisite, Minimum Energy Performance. The guide explains the rationale behind the 12-month period and how it contributes to a reliable assessment of the building's energy use.