Re-tuning focuses on a number of commonly occurring operational problems in buildings. These guides, through examples, provide details on how to detect good (normal) and bad (abnormal) operations. The purpose of the air handling unit (AHU) discharge-air temperature control guide is to show, through use of examples of good and bad operations, how the discharge-air temperature can be efficiently controlled.
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Re-tuning focuses on a number of commonly occurring operational problems in buildings. These guides, through examples, provide details on how to detect good (normal) and bad (abnormal) operations. The purpose of the zone heating and cooling control guide is to show, through use of examples of good and bad operations, how the heating and cooling at the zone level can be efficiently controlled.
The intent of this user guide is to provide a description of the functionality of the Energy Charting and Metrics plus Building Re-tuning and Measurement and Verification (ECAM+) tool. ECAM+ facilitates the charting and analysis of energy use and point-level data from utility meters, building automation systems (BASs), and data loggers. This document describes the tool’s general functions and features, including installation, use, guidance, and limitations.The Energy Charting and Metrics Tool (ECAM) is an add-on for Microsoft Excel® which was developed to facilitate analysis of data from building (energy and other data). Key features of ECAM+ include the creation of charts to help re-tuning.
Older, inefficient commercial rooftop unit (RTU) air conditioning systems are common and can waste from $1,000 to $3,700 per unit annually, depending on the building size and type. By replacing or retrofitting them, you can save money, improve your energy efficiency, make your building more comfortable, and help the environment. The Advanced RTU Campaign (ARC) encourages commercial building owners and operators to replace their old RTUs with more efficient units or to retrofit their RTUs with advanced controls in order to take advantage of these benefits. This website shows updates to the campaign including resources and progress towards the campaign's goal.
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.
Tower Companies, a DC based owner of large multi-tenant buildings and Better Buildings Challenge partner, engaged in an aggressive program to take measured data from their buildings and turn it into real energy savings. This case study, completed by Tower in partnership with the National Resources Defense Council (NRDC) describes outcomes at three properties. The case study was highlighted on a Better Buildings Webinar on February 5, 2014.
The Energy Management Package was developed by LBNL and DOE to deliver energy management and low- and no-cost energy efficiency opportunities to the small commercial building sector (less than 50,000 sq. ft.). This whole-building efficiency service offering was designed to be delivered by HVAC contractors at low transaction cost, and includes analysis of whole-building monthly or interval energy data and benchmarking, using free and low cost software tools. The website includes links to the Package itself, the business model associated with delivery of the Package, an introductory webinar, and an overview slide deck. Contractors servicing the small commercial sector who are interested to help demonstrate this approach should contact the point of contact below.
The package helps contractors to address questions such as:
What no- or low-cost measures could generate savings in a building?
How much energy does a building use compared with similar buildings?
How has energy usage changed over time? If the owner has already made upgrades, have they been effective?
How much money could potentially be saved through energy upgrades?
This decision tree provides information on saving money by implementing advanced power strips and provides specific information on cost, features, drawbacks, and what to look for when purchasing an advanced power strip.
Action oriented workbook designed for churches and community centers. The workbook lays out a process for reducing energy consumption and saving money including tips and worksheets to identify energy savings measures and estimate energy savings. The workbook was produced by the Environmental Protection Agency (EPA) with assistance from DOE.
Commercial Building Energy Efficiency: Applied Research at Speed and Scale given at the NASA Net-Zero Energy workshop June 5-6, 2012