energy efficiency control Articles

  • How to make top-down and bottom-up sustainability converge

    Fits and starts are all too common in the sustainability world. One year you have budget for initiatives; the next you don’t. Management hails cost savings on individual projects, but they miss the big picture and fail to link progress across departmental boundaries. Bottom-up progress and top-down directives pass each other like proverbial ships in the night. But it doesn’t have to ...


    By CH2M Hill Companies, Ltd.

  • Why Water Management Professionals Can’t Afford to Ignore Innovation

    Innovation in the water management industry is born from the collaboration between water managers, operators, engineers and manufacturers who set out to resolve problems or improve service levels that impact all parts of the supply chain. This is usually the result of early adopters either at the field level or in engineering ...


    By Singer Valve Inc.

  • Los Angeles County WRRF Embraces Codigestion

    Technology to produce food waste slurry key to project implementation - and helps generators comply with California organics recycling mandates. The Sanitation Districts’ JWPCP in Carson (CA) treats an average of 280 million gallons/day of wastewater. One of the two anaerobic digestion tanks above has been used for codigestion, with the second serving as the control. Photos ...


    By BioCycle Magazine

  • 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

  • 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. ...

  • 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 ...

  • 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 ...


  • 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

  • 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

  • Case study - Multi-tenant building energy efficiency

    Buildings accounted for roughly 40% of total U.S. energy consumption in 2010, according to the United States Energy Information Association. “[New York] City's roughly 1 million buildings cost $15 billion a year to power and heat and account for 80% of the city's greenhouse gas emissions”(1). The proliferation of smart energy devices and building management systems will result in the ...


    By Powerhouse Dynamics

  • Efficient aeration system boosts energy savings

    A new efficient aeration system saves the Ontario, Ore., wastewater treatment facility $47,000 annually in energy costs. Besides giving this community a financial boost, the new system netted additional equipment cost savings by cutting aeration horsepower by more than half at the plant. The environmentally conscious city, located in the Oregon/Idaho border area, is meeting all of its effluent ...

  • 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

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