Water Efficiency

This page houses resources related to water efficiency in data centers. 


FEMP Water Efficiency in Federal Buildings & Campuses Webpage

The Federal Energy Management Program (FEMP) provides agencies with guidance and direction on how to increase water efficiency and reduce water use in federal buildings and campuses. Explore resources including trainings, tools, and more geared to assist in efficient water management planning, measurement, optimization, and expansion.

FEMP Best Management Practice- Cooling Tower Management

Cooling towers dissipate heat from recirculating water used to cool chillers, air conditioners, or other process equipment to the ambient air. Heat is rejected to the environment from cooling towers through the process of evaporation. Therefore, by design, cooling towers use significant amounts of water. Resources on cooling tower operation and maintenance, retrofit and replacement options, and more. 

Making a Splash: Targeting Water Saving Measures for the Highest Impact

Slides from NREL's presentation at the 2018 Better Buildings Summit Energy Exchange on designing and building the world's most efficient data center, with a focus on water savings.

Thermosyphon Cooler Hybrid System for Water Savings in an Energy Efficient HPC Data Center: Modeling and Installation

The Thermosyphon Cooler Hybrid System (TCHS) integrates the control of a dry heat rejection device, the thermosyphon cooler (TSC), with an open cooling tower. Johnson Controls partnered with two national laboratories—the National Renewable Energy Laboratory (NREL) in Golden, Colorado, and Sandia National Laboratories in Albuquerque, New Mexico—to deploy the TSC as a test bed at NREL’s high-performance computing (HPC) data center in the first half of 2016.