rooftop wind Articles

  • ´More Stations. More Data. Better Forecasts.´ – the NYS Mesonet

    “More Stations. More Data. Better Forecasts.” – that’s the slogan of New York State Mesonet. The weather observation network consists of a total of 125 weather stations all over the state of New York and Lufft was selected as one of the vendors to support them in capturing the data. All 125 of the weathers stations have the standard instrumentation suite. Of those 125, 17 ...

  • Solar PV Carousel Trackers for Building Flat Rooftops

    ABSTRACT Herein, a SunTrack Carousel tracker is described for mounting on residential or commercial building flat rooftops in order to produce more k\Vh per kW relative to fixed PV modules. The JX Crystals (JXC) fixed-tilt / azimuth carousel is a low profile tracker designed to distribute weight evenly over a large area and for low wind resistance on the roof. Multiple JXC SunTrack Carousels ...


    By JX Crystals

  • Wind power growth in the US

    Last year was a banner year for renewable energy in the United States, especially for the wind industry. As the recent REN21 Renewables 2007 Global Status Report highlights, the industry broke all past global records, installing 5,244 megawatts (MW) of new wind energy capacity in 2007, or 30 percent of all new U.S. capacity added. This brings the cumulative national total close to 17,000 ...


    By Worldwatch Institute

  • How much wind is needed to power a home turbine?

    First do you have what it takes? Whether you are considering a small rooftop unit or a large residential turbine you need to know how much wind power is in your area. Wind resource maps, published by the US Department of Energy show airflow speeds at 50 meters (150 feet) above the ground and are a great resource in deciding if you are in a viable location. That's great if you are installing a ...


    By Bosworth Instrument

  • Dependence of street canyon concentrations on above-roof wind speed - implications for numerical modelling

    For microscale numerical modelling of street canyon air pollution, the traffic-related component of the total ambient pollutant concentration is often assumed to be inversely dependent on the wind-speed at rooftops for idealised conditions of neutral stratification, no solar radiation, and no traffic-induced turbulence. Detailed data analyses of two comprehensive datasets from Gottinger Strase ...


    By Inderscience Publishers

  • QUIC transport and dispersion modelling of two releases from the Joint Urban 2003 field experiment

    An in-depth comparison of plume calculations from the Quick Urban and Industrial Complex (QUIC) dispersion model to street- and roof-level concentration measurements for a daytime and night time release taken during the Joint Urban 2003 field experiment held in downtown Oklahoma City is presented. A number of improvements to the empirical-diagnostic wind solver to better account for high-rise ...


    By Inderscience Publishers

  • Museum of Science – Boston - Case Study

    Each year, millions of visitors come to the Museum of Science – in Boston, only Fenway Park draws more people. This nationally-renowned center dates to the mid-1800s as a resource to teach and demonstrate how technology and science affects daily living. The museum enjoys a high-profile location along the Charles River, between Boston and Cambridge. Facilities include an IMAX theater and a 2 ...

  • Wellesley College – Wellesley, MA - Case Study

    In 2008, college officials set four goals as sustainability priorities on this 500-acre campus, including initiatives to improve landscape, conserve water, reduce waste and energy use. A related project would create a "Green Center" near west campus athletic facilities, serving as a model for students and providing an ongoing educational resource. Classic red brick buildings and new facilities ...

  • Reduced PM2.5 in Trujillo, Peru, on El Dia Sin Autos (“The Day Without Cars”)

    Street-level and rooftop (three-story building) concentrations of particulate matter ≤2.5 µm in diameter (PM2.5) were measured in downtown Trujillo, Peru, in July and August 2003 to determine the PM2.5 concentration reduction on days with normal traffic conditions (32 days) versus a day when motor vehicles were temporarily banned from the downtown district (8:00 a.m. to 6:00 p.m., ...

  • India’s Potential in Harnessing the Alternate Energy Sources

    Long queues for gasoline, high prices and shortage of gasoline are the signs which show that how natural resources are on the verge of depletion. This shows that it is high time for us to view how to utilize natural resources. India is mainly depended on import of petroleum products for its energy requirements. It meets its requirements by importing 70% of petroleum products. This is a point of ...


    By Jay Khodiyar Machine Tools

  • Avoiding the Power Grid with Renewable Energy

    For approximately one hundred years, thriving countries have been dependent on only one form of distributing power; electricity sent over large transmission grids from plants generating electricity, to customers in businesses, homes, and factories.  Generators extract energy from rooftop solar panels, garbage, and sewage, which replace or assist coal, nuclear, and natural gas plants. A ...


    By Greenshine New Energy LLC

  • Create new jobs & cut emissions by investing in renewable energy efficiency

    At a time when major US companies are announcing job layoffs almost daily, the renewable energy industry is hiring new workers every day to build wind farms, install rooftop solar arrays, and build solar thermal and geothermal power plants. The output of industrial firms that manufacture the equipment for these energy facilities is expanding by well over 30 percent a year. These investments both ...


    By Earth Policy Institute

  • The Energy Revolution is Here

    We live in an exciting time. Yes, glaciers are melting, sea levels are rising, and in my new home in the Western United States, earlier snowmelts, longer summers, and hotter temperatures have made wildfires 400 percent more frequent. And yet, there are encouraging signs we are in the midst of an energy revolution that is sure to transform our climate, our economy, and our lives for the better. ...


    By GLOBE Foundation

  • Plan B 4.0 by the numbers - data highlights on solar energy

    Concerns about global warming, rising fossil fuel prices, and oil insecurity have prompted calls for a new energy economy, one that replaces fossil fuels with renewables. The sun is an enormous reservoir of energy; in fact, the sunlight reaching Earth in just one hour is enough to power the global economy for a whole year. Harnessing some of this energy is an essential component of Earth Policy ...


    By Earth Policy Institute

  • On energy, we`re finally walking the walk

    The United States has entered a new energy era, ending a century of rising carbon emissions. As the U.S. delegation prepares for the international climate negotiations in Copenhagen in December, it does so from a surprisingly strong position, one based on a dramatic 9 percent drop in U.S. carbon emissions over the past two years and the promise of further huge reductions. Prominent among these ...


  • Renewable Energy - A Key Solution to End Global Warming

    Scientists have spent years trying to find the causes of global warming leading to significant changes in the world’s climate. Their research shows that several factors have contributed to the rise of earth’s temperature and altering of natural cycles and actions. One key reason is excessive emission of greenhouse gases like, methane and carbon dioxide (CO2) in the atmosphere. These ...


    By Vista Solar

  • 9 reasons not to be depressed about the planet

    From a sustainable future market perspective, it’s been a very good year. Don’t leave 2014 without realizing there have been notable — often underreported — big capital market breakthroughs on climate change, water protection and other sustainability fronts. Stock exchanges requiring company disclosure on sustainability risks or bonds backed by electricity ...


    By Ensia

  • Bird deterrents say `Shoo` to pest birds

    We have a love-hate relationship with our fine-feathered friends. Poets love them. Property managers can do without them. Like anything in this world, too many birds can be a real problem. Suddenly, what was endearing becomes a pest. One that"s noisy, messy and damaging to almost everything it lands on. The solution? Bird deterrents. In days of old, this meant culling by birdshot, trained ...


    By Bird-B-Gone, Inc.

  • U.S. headed for massive decline in carbon emissions*

    For years now, many members of Congress have insisted that cutting carbon emissions was difficult, if not impossible. It is not. During the two years since 2007, carbon emissions have dropped 9 percent. While part of this drop is from the recession, part of it is also from efficiency gains and from replacing coal with natural gas, wind, solar, and geothermal energy. The United States has ended a ...


    By Earth Policy Institute

  • Recapping the Debate Over Whether Low-Carbon Economies Are Good for Tech

    To be of any use, tech products need power from electrical outlets, stored chemical energy such as batteries and generators, solar collectors, kinetic energy like my emergency hand-crank radio/charger, or other means. As more global and local regions move away from fossil-fuel-based power to low-carbon renewable power, I wonder how my colleagues in the tech industry would weigh in on a debate ...


    By Antea Group - USA

Need help finding the right suppliers? Try XPRT Sourcing. Let the XPRTs do the work for you