energy efficiency control Articles

  • Building Energy Modeling 101: HVAC Design and Operation Use Case

    A great deal of energy use in buildings goes toward heating, ventilation, and air-conditioning (HVAC). In 2015, HVAC consumed 15.5 quads. The first step in reducing HVAC energy use is reducing heating and cooling load—i.e., the amount of heat that needs to be added to or removed from a building—typically by reducing heat from equipment and lighting; minimizing unnecessary ...


    By US Department of Energy

  • 4700 Sampler Industrial Park Wastewater Monitoring - InfraServ Knapsack, Germany - Case Study

    The Model 4700 Automatic Refrigerated Sampler from Teledyne Isco, Inc. is used for water quality monitoring at an industrial park operated by InfraServ Knapsack, Germany InfraServ Knapsack InfraServ GmbH & Co. Knapsack KG is the company that operates the Chemical Industrial Park Knapsack. The site is situated in Huerth, south of Cologne in Germany. The park is divided into ...


    By Teledyne Isco

  • A no-granola case for energy efficiency

    I attended a green energy conference nearly a decade ago in Washington, D.C., where several speakers expressed astonishment at the audience’s clothes. People were dressed in business attire. Where were the ponytails? The Birkenstocks? The event marked a new age for green energy, the beginning of its migration from counter-culture to corporation. Today green energy is, well, more like ...

  • May the Force be energy efficient

    It was hard to get excited about IBM’s Watson http://www-03.ibm.com/innovation/us/watson/ besting two humans in the TV game show Jeopardy and walking away with a $1 million prize last month. After all, thanks to the entertainment industry, we’ve seen robots and computers win in all kinds of ways, from HAL duping the smart ...

  • Electro-Fenton for control and removal of micropollutants – process optimization and energy efficiency

    The removal of micropollutants is an important environmental and health issue. Electro-Fenton offers an electrochemical advanced treatment that is particularly effective for the breakdown of aromatic contaminants. Due to the wide variety of chemicals, it is preferable to analyze model contaminants, such as phenol, when optimizing and assessing the efficacy of a novel treatment process. In this ...


    By IWA Publishing

  • Utilities: friend or foe of energy efficiency?

    With oil prices so high, talk again has turned to making the U.S. more energy efficient. In the power industry, utilities have been typically charged with this mission. Or to more aptly describe it, they have gotten dragged, kicking and screaming, into helping their customers use less electricity. You can’t blame them for resisting. An electric utility is a business that makes its money ...

  • Export opportunity for US energy efficiency?

    For a long time the energy efficiency industry operated largely under the two-guys-and-a-truck-model: local businesses made up of small contractors. Then the ‘super’ energy efficiency service companies (ESCOs) emerged, big operations taking on big contracts often for government, schools or hospitals, like the $35 million deal that Pepco Energy Services signed with the Prince ...

  • Energy Efficiency Economics: Beyond 101

    At first blush, the economics of energy efficiency seem straightforward. A business installs lighting controls or some other improvement. The business then sees its energy costs drop. From the savings, the business repays the investment over weeks, months or years, and then turns a profit on the asset. While that ...


    By Energy Efficiency Markets

  • Where to find jobs in energy efficiency

    Here’s something you don’t hear people complain about much these days: worker shortages.  That is, unless you’re in energy efficiency, an industry that is booming as others are busting. Sixty percent of those responding to a recent survey by theAssociation of Energy Services Professionals cited a lack of talented workers in ...


    By Energy Efficiency Markets

  • Energy Efficiency prospects: What to watch

    Events unfolding in two US Northeast states – New York and Massachusetts – signal increased business opportunity for energy efficiency companies, green architects, lighting contractors, smart grid innovators and others in the business of saving energy. First, the energy efficiency world should keep an eye on debate over the possible shutdown of the Indian Point nuclear power plant in ...

  • How to make energy efficiency affordable

    Energy efficiency is a tortoise in the green energy race. Not glamorous like solar, wind or smart grid, it tends to plod along in the back of the pack, attracting little media attention. But being last can be a good thing; you learn from the frontrunners. Such is the case when it comes to financing. EE is beginning to borrow from strategies that have spurred tremendous growth for solar and other ...

  • US Dominance in Alternative Energy and Energy Efficient Technologies

    20 years ago there were very few people who would have thought that international competitiveness to be number one would involve much of anything outside military, aerospace or, computer technologies. The last thing anyone probably expected would be a race to be the top producer of the most efficient and environmentally safe technologies on earth. Yet that is precisely what is taking place right ...


    By Larson Electronics LLC

  • Energy Efficiency and PV: Together Forever

    We have seen a marriage of the energy efficiency and solar energy industries as the US has worked to green its buildings. In fact, some financing programs require that all cost-effective efficiency be pursued before solar panels are installed.  Here Elisa Wood interviews Liz Merry, owner of Verve Solar Consulting, about how the solar industry views energy efficiency and the outlook for ...


    By Energy Efficiency Markets

  • China’s booming energy efficiency industry

    China’s energy efficiency industry is emerging as a high growth sector with the country projected to spend as much as Rmb2.1 trillion (USD300 billion) over the next five years on products and services that cut energy use. The key drivers of this development are the Chinese government’s determination to curb the country’s expanding energy appetite as well as higher production and energy costs. ...

  • Building Experience: Energy Efficient Buildings

    Issue: The development of large commercial, governmental and even residential buildings which take advantage of energy efficient design and incorporate on-site renewable energy sources could have a major impact on achieving and maintaining Kyoto targets on reducing carbon dioxide (CO2) emissions in the future. Although demonstration sites across Europe have been built, the lessons learnt in their ...


  • Advances in efficiency optimisation control of electrical servo drive

    The development of legislative acts in the world in favour of environmental protection requires the reversion of electrical drives' specifications. Indeed, the efficiency of electrical systems has become a crucial goal in the design of control systems (Farhani et al., 2012). In this perspective, this paper proposes a new control strategy of the association of the asynchronous machine and its ...


    By Inderscience Publishers

  • Energy efficiency waste extraction upgrade against the clock

    When Impacts project team were challenged with the gauntlet of replacing a twin extraction system at Greenshires in a 24-hour shutdown they knew they had a challenge. After many years of suffering unreliability of an environmentally unfriendly waste system, Greenshires - Leicester, had no option but to replace it with the latest extraction system solutions. Impact Air Systems were called to the ...


    By Impact Air Systems

  • Using your EMS to improve energy efficiency

    Why an EMS Approach? With increased pressure to address energy and climate change issues, many organizations are leveraging their environmental management system (EMS) as an important mechanism for implementing energy efficiency initiatives. This phenomenon is not entirely new. The EMS approach has frequently been used across a broad array of sectors to facilitate energy improvements. But ...


    By Trinity Consultants

  • Why is the reality of energy efficiency so bleak?

    Considering that making money and creating wealth is the primary objective in every business, one would expect companies to squeeze out every bit of profit from their operations by making them efficient and technologically advanced. However, the reality of energy efficiency seems to be still a bit bleak and most companies are so preoccupied with external factors that contribute to top-line ...


    By Vital Efficienci Ltd.

  • Can low-income housing be energy efficient and affordable?

    Residents of low-income housing need energy efficiency more than others, but are less likely to be able to afford it. How to escape the Catch-22? In Ann Arbor, Michigan, the local housing commission is completing floor-by-floor renovations in the five-story Baker Commons public housing ...


    By Ensia

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