This conference paper discusses four well-documented definitions of net-zero energy: net-zero site energy, net-zero source energy, net-zero energy costs, and net-zero energy emissions, along with pluses and minuses of each.
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This paper introduces a classification system for net-zero energy buildings (ZEB) based on the renewable sources a building uses.
The scorecard provides a spreadsheet template for collecting and tracking building data related to energy performance modeling.
This guide explains the benefits and process of building commissioning thereby providing owners and other stakeholders a tool to improve building efficiency and operation. It is intended to be a resource, as well as a call to action, for building owners and facility managers who want to verify their buildings are not only operating as originally intended, but also as efficiently as possible. Commissioning of new construction and major renovations is the primary focus, although commissioning of existing buildings is also briefly discussed as well.
This guide provides an overview of the different energy audit options available and information on how to select an energy auditor.
This report provides an overview of the key elements of submetering and associated energy management systems to foster an understanding of the many potential benefits and complexities associated with use of these systems. While submeters by themselves have no direct impact on resource use, the data they capture informs real-time energy and water performance, can pinpoint performance variations over time or relative to other buildings, feeds into building automation systems that drive continuous operational improvements, and provides the information needed to encourage behavioral and operational changes by building operators and occupants.
This handbook targets two primary areas for creating energy-efficient buildings: (1) How to interpret energy data to improve efficiency and performance; (2) How to use computation and programming to combine the use of spreadsheet or programmable analysis tools with data from on-site meter and sensor acquisition systems. The primary audience for this handbook is commercial building owners, energy and facility managers, financial managers, and operators with little to no experience in data analysis and performance monitoring. The secondary audience is software developers and energy service providers in the commercial building industry, as well as more experienced owners and managers who wish to improve how they visualize, analyze, and manage their building’s energy use.
This report outlines the technical protocol used to generate Department of Energy's Commercial Building Energy Asset Score for commercial buildings, explains the scoring methodology, and provides additional details regarding the Asset Scoring Tool. This report also describes alternative methods that were considered prior to developing the current approach. Finally, this report describes a few features of the program where alternative approaches are still under evaluation.