residential rooftop solar Articles

  • 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

  • On rooftops worldwide, a solar water heating revolution

    The harnessing of solar energy is expanding on every front as concerns about climate change and energy security escalate, as government incentives for harnessing solar energy expand, and as these costs decline while those of fossil fuels rise. One solar technology that is really beginning to take off is the use of solar thermal collectors to convert sunlight into heat that can be used to warm ...


    By Earth Policy Institute

  • A brighter future for solar in Texas

    I'd put my money on the sun and solar energy. What a source of power! I hope we don't have to wait until oil and coal run out before we tackle that. - Thomas Edison, in conversation with Henry Ford and Harvey Firestone, 1931 According to the State Energy Conservation Office (SECO), Texas has the greatest solar energy potential of any state in the country. “If photovoltaic (PV) systems operating ...

  • Go Solar Successfully With These Tips

    Installing solar systems in residential areas on a domestic level is a common sight nowadays. All solar power generation units basically work by converting sunlight in to electricity using photovoltaic cells. Over time, there have been considerable leaps in the technology levels of this invention. This environment free power source with minimal maintenance or everyday cost is now being rapidly ...


    By Greenshine New Energy LLC

  • How to grow a solar energy garden

    Getting energy from the sun is a great idea. However, installing solar panels house-by-house is slow, costly and cumbersome, and downright inefficient if the goal is to bring solar to the masses. This problem troubled Paul Spencer after he built his own uber-efficient, custom solar home near Aspen, Colorado in 2004.  The engineer and serial entrepreneur wondered how he could replicate his ...

  • Solar Power 2011 - Solar PV Breaks Records in 2010

    Solar photovoltaic (PV) companies manufactured a record 24,000 megawatts of PV cells worldwide in 2010, more than doubling their 2009 output. Annual PV production has grown nearly 100-fold since 2000, when just 277 megawatts of cells were made.  Newly installed PV also set a record in 2010, as 16,600 megawatts were installed in more than 100 countries.  This brought the total worldwide ...


    By Earth Policy Institute

  • Solar: Meeting Nairobi's Energy Needs the Renewable Way

    It is no surprise for Nairobi residents, and many other African cities, to experience constant blackouts caused by inefficient grid systems and unreliable power sources from the utility companies. The conventional solution has been to install petroleum based electric generators to kick in during such incidents. However, the amount of energy that could be produced through solar equipment ...

  • World Solar Power Topped 100,000 Megawatts in 2012

    The world installed 31,100 megawatts of solar photovoltaics (PV) in 2012—an all-time annual high that pushed global PV capacity above 100,000 megawatts. There is now enough PV operating to meet the household electricity needs of nearly 70 million people at the European level of use. While PV production has become increasingly concentrated in one country—China—the number of ...


    By Earth Policy Institute

  • Near Term Lower Cost Solar Electric Power for US Commercial Customers

    Market Opportunities The first market for PV electric power panels was for space satellites. While the single crystal cells used in these panels made these panels very expensive, this was unimportant for that market. That market emphasized reliability, not cost. As these panels came down to earth for off-grid remote applications, again the emphasis was on reliability and low maintenance, not ...


    By JX Crystals

  • Thin film technologies changing the solar PV business

    The solar photovoltaic (PV) industry is clearly in a rapid growth phase. The worldwide industry size was recently estimated at US$50 billion. Over the past few years, production capacity is thought to have grown at an average of 48% each year and cumulative global production is now at 12.4 Giga Watts (GW). It is also an industry on the brink of change. New technologies are emerging that seem ...


  • V.E. Petersen Co., Inc., cuts energy usage by 30 percent with solar array built by Rudolph/Libbe Companies

    A new, 28kW rooftop solar array is reducing energy costs usage by 30 percent for V.E. Petersen Co., Inc., based in Walbridge, OH.  Rudolph/Libbe Inc., of Walbridge, developed, designed and built the rooftop solar array. GEM Inc., of Walbridge, performed electrical work. The solar panels were manufactured by ISOFOTON, in Napoleon, ...


    By Rudolph/Libbe Companies

  • Harnessing the Sun`s Energy for Water and Space Heating

    The pace of solar energy development is accelerating as the installation of rooftop solar water heaters takes off. Unlike solar photovoltaic (PV) panels that convert solar radiation into electricity, these "solar thermal collectors" use the sun's energy to heat water, space, or both. China had an estimated 168 million square meters (1.8 billion square feet) of rooftop solar thermal collectors ...


    By Earth Policy Institute

  • Building Integrated Photovoltaics (BIPV) Market Growth Research 2013-2019

    Building Integrated Solar photovoltaic (BIPV) systems utilize building integrated solar panels to generate electricity, by transforming solar radiations into electrical energy. The energy generated has wide applications in several sectors including residential, commercial and industrial sectors. The major advantage of the BIPV is decentralization from grid power. View Full ...


  • Mayor announces London’s low-carbon zones

    Boris Johnson today announced areas to trial low-carbon zones in the capital, reports Envido. The Mayor of London unveiled today the capital's first 10 'low-carbon zones', which are to receive more than £200,000 to fund low-carbon zones that include installing rooftop solar panels, electric car recharging points and introducing “low-carbon zone energy doctors”. Johnson announced that ...


    By Vital Efficienci Ltd.

  • 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

  • Beyond the Tesla Powerwall: How energy storage is shaping up in Ontario - How energy storage changes everything

    There are not many entrepreneurs who can command a room like Elon Musk. When he stepped onto a stage in May to unveil the Powerwall the audience oohed and ahhed and dutifully pre-ordered more than 38,000 of Tesla’s new home battery systems. And while Tesla gets the headlines other energy storage ...


    By Green Energy Futures

  • Why smart utilities are embracing distributed electricity

    Power companies that take initiative now can position themselves for a bright future in tomorrow’s clean energy economy The growth of distributed energy generation, particularly in the form of solar energy, leaves the aging, monopolistic electric utility system a daunting choice: Come out swinging in defense of the status quo or boldly jump into the cockpit, put on the ...


    By Ensia

  • A Cleaner Energy Future

    As renewable energy plays an increasingly important role in the world’s energy portfolio, the standards of ASTM International Committee E44 are helping to pave the way for innovation in clean energy sources. A growing population and improving living standards around the world are causing significant increases in energy demand and competition for fossil fuels. These escalating energy ...


    By ASTM International

  • 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

  • Renewable, local power options expand

    It makes no economic sense to run more than one set of wires from electric power generators to homes and businesses. That’s why consumers haven’t had a choice about the source of their electric power – whether it be an investor-owned utility (IOU), municipal utility or electric cooperative. Enabling consumers to choose between competing energy providers is a paradigm shift, and ...


    By Triplepundit

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