Technical documentation

ENERGY STAR for Tenant Spaces: Lighting Analysis

This 23-page technical document describes the lighting energy unit intensity (LEUI) metric developed by Pacific Northwest National Laboratory (PNNL) in support of EPA’s ENERGY STAR Tenant Space recognition.
 
PNNL lighting researchers studied and analyzed traditional lighting power density (LPD) in energy codes. PNNL also studied the Leadership in Energy Efficient Design (LEED) rating system, the Urban Land Institute (ULI), and the Green Mark for Office Interiors program in Singapore.

Development of ENERGY STAR EPI for Fluid Milk Processing

This report describes the data and statistical methods used to construct the Energy Performance Indicators (EPIs) for fluid milk processing plants. It reviews how the EPIs were developed to provide plant-level indicators of energy performance by working with the dairy industry. The report also presents the individual equations used in the EPI.

ENERGY STAR Score for Data Center Estimates (U.S. and Canada)

The ENERGY STAR score provides a fair assessment of the energy performance of a property relative to its peers, taking into account the climate, weather, and business activities at the property. In the United States, data centers are able to earn the ENERGY STAR score using an energy intensity metric that takes into consideration the IT Energy used by the data center (see the Technical Reference for the ENERGY STAR Score for Data Centers for more details). For data centers within a larger property, it can sometimes be difficult for property managers to obtain IT Energy.

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