Plug and process loads (PPLs) in commercial buildings account for almost 5% of U.S. primary energy consumption. Minimizing these loads is a primary challenge in the design and operation of an energy-efficient building. PPLs are not related to general lighting, heating, ventilation, cooling, and water heating, and typically do not provide comfort to the occupants. They use an increasingly large fraction of the building energy use pie because the number and variety of electrical devices have increased along with building system efficiency. Reducing PPLs is difficult because energy efficiency opportunities and the equipment needed to address PPL energy use in office spaces are poorly understood.
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This report discusses miscellaneous electrical loads, which are building loads that are not related to general lighting, heating, ventilation, cooling, and water heating, and typically do not provide comfort to the occupants. MELs in commercial buildings account for almost 5% of U.S. primary energy consumption.
The Research Support Facility was designed with energy efficiency and sustainability in mind. Many of its innovative technologies use passive and active processes to provide energy for its operations, such as electricity, heating, and cooling. The goal of this unique office building is to reach net zero energy use by engaging staff in best energy practices.
This eight-page fact sheet helps employees moving to the RSF navigate NREL's changing landscape. This brochure provides getting up and running, building access, emergencies, shuttle service, RTD buses, parking locations, parking passes, exceptions to off-site parking, conference rooms and huddle rooms, balconies, elevators, lunchroom, quiet rooms, smoking, iGo Power Smart Tower, and supporting RSF's net zero energy mission.
In typical computer centers you can feel the energy consumption from racks of servers radiating heat, while icy air blows through the room to cool them. NREL’s fully contained hot and cold aisle data center configuration minimizes this problem. The configuration includes effective air-side economizer cooling with an evaporative boost when needed.
This document highlights the key accomplishments in Green IT of the 17 DOE labs.
There is nothing small about the impact that small commercial buildings have on energy use in the United States. In fact, the 4.6 million small buildings across the nation consume 44% of the overall energy use in buildings, presenting an enormous opportunity to cut costs, energy use, and greenhouse gas emissions. Despite this potential, small building owners and operators face unique challenges that have historically impeded the adoption of widespread energy efficiency solutions. A new report developed by the National Renewable Energy Laboratory (NREL) examines these barriers and suggests a path forward to support cost-effective energy savings for the small buildings and small portfolios sector, which typically has limited resources to pursue energy efficiency solutions.
This document provides facility managers and building owners with an introduction to measurement and verification (M&V) methods to estimate energy and cost savings of rooftop units replacement or retrofit projects. The M&V methods presented here are helpful in estimating paybacks to justify future projects.
This document lists a set of resources that can help small business owners make informed decisions about their energy use and identify opportunities for long-term financial savings from energy efficiency improvements. These resources include case studies, energy savings and investment calculators, technical guides and information on state and federal incentives programs.
Argonne’s Energy Efficiency Decision Support Calculator is a simple tool that small business owners can use to quickly analyze the high-level economic impact of investments in energy efficient products, retrofits or capital improvements. This tool requires minimal input data and is accessible to anyone, regardless of their experience with energy issues. It is intended to complement many of the more involved, technology specific calculators that are referenced in Argonne’s “Resources for Informed Small Business Energy Efficiency Decision Making.”