This guide provides an overview of the different energy audit options available and information on how to select an energy auditor.
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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.
The U.S. Environmental Protection Agency (EPA) developed this Building Upgrade Manual to assist organizations in planning and implementing profitable upgrades. This manual outlines a process for developing a comprehensive energy-management strategy and an integrated approach to upgrading existing buildings. It also provides information on proven energy-efficient technologies that can produce energy savings of 35 percent or more. Chapter six of this publication is devoted to issues related to lighting.
This paper presents a parametric analysis using a numerical model of a new concept in desiccant and evaporative air conditioning. The concept consists of two stages: a liquid desiccant dehumidifier and a dew-point evaporative cooler. Each stage consists of stacked air channel pairs separated by a plastic sheet. In the first stage, a liquid desiccant film removes moisture from the process (supply-side) air through a membrane. An evaporatively-cooled exhaust airstream on the other side of the plastic sheet cools the desiccant. The second-stage indirect evaporative cooler sensibly cools the dried process air. We analyze the tradeoff between device size and energy efficiency. This tradeoff depends strongly on process air channel thicknesses, the ratio of first-stage to second-stage area, and the second-stage exhaust air flow rate. A sensitivity analysis reiterates the importance of the process air boundary layers and suggests a need for increasing airside heat and mass transfer enhancements.
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.
The California Energy Commission’s Public Interest Energy Research (PIER) Program sponsors the development and demonstration of energy-efficient building technologies. Over the past several years, PIER has developed strategic partnerships with the University of California, California State University, California Community Colleges, and California Department of General Services. These partnerships include a series of demonstration projects coupled with programmatic support to ensure continued deployment of energy-efficient technologies and practices across California. Examples of the latest energy-efficient innovations are described.