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This report describes the psychrometric bin analysis that was conducted for the ASHRAE recommended and allowable operating environment zones as well as a modified allowable operating environment, discusses control strategies, and presents examples of energy-efficient data centers using alternative cooling strategies.

NREL's sustainability vision is to build a laboratory of the future that is committed to sustainability, which is built on a framework of economic viability, environmental health, and public responsibility over the long term through appropriate investment decisions and operating practices.This report shows NREL’s progress in making sustainability an integral part of its corporate culture and providing a global sustainability model

This report presents a set of 15 best practices for owners, designers, and construction teams to reach high-performance goals and maintain a competitive budget. These best practices are based on the recent experiences of the Research Support Facility owner and design-build team for the Research Support Facility (RSF) on the National Renewable Energy Laboratory’s (NREL) campus in Golden, Colorado, and show that achieving this high performance outcomes requires that all key integrated team members understand their opportunities to control capital costs.

Segmentation, identifying homogenous sub-populations within larger heterogeneous populations, has emerged as an important marketing tool over the past half-century. The technique is a response to the need to effectively communicate with an increasingly diverse population.

This resource describes the California Preschool Energy Efficiency Program, including program rationale, outcomes, strategy, and implementation.

This fact sheet describes how a hybrid finance model utilizing power purchase agreements (PPA) and public debt works and assesses the model’s relative advantages and challenges as compared to self-ownership and the third-party PPA. The fact sheet also provides a quick guide to project implementation and assesses the replicability of the model in other jurisdictions across the United States.

This paper shows how a quiet revolution in clean energy financing is now happening at the state level. States and cities, for the first time, are beginning to use these credit enhancement tools to finance clean energy technology deployment.

Michigan’s Oxford Area Community School District entered into an energy savings performance contract and issued limited tax general obligation bonds to fund the up-front costs of almost $3 million of energy-related improvements. Case study is excerpted from Financing Energy Upgrades for K-12 School Districts: A Guide to Tapping into Funding for Energy Efficiency and Renewable Energy Improvements.

Williamson County School District entered into an energy savings performance
contract with an energy services company and completed a $5.7 million lease-purchase agreement to fund a range of energy-related improvements across 27 school facilities. Case study is excerpted from Financing Energy Upgrades for K-12 School Districts: A Guide to Tapping into Funding for Energy Efficiency and Renewable Energy Improvements.

The municipal bond–PPA model is also known as the Morris Model after Morris County, New Jersey, where the arrangement was first applied. The gist of the model is that it combines the tax monetization benefits of third-party ownership with low-cost capital in the form of public debt.