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Thread: Renewable Energy Efficiency

  1. #1
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    Default Renewable Energy Efficiency

    The thread title indulges my preference for short titles by describing two distinct concepts in three words.



    Non-subsided off-shore wind turbines taller than the Eiffel Tower by 2025


    Just three years ago, offshore wind was a fringe technology more expensive than nuclear reactors and sometimes twice the cost of turbines planted on land. The fact that developers such as Energie Baden-Wuerttemberg AG and Dong Energy A/S are offering to plant giant turbines in stormy seas without government support show the economics of the energy business are shifting quicker than anyone thought possible -- and adding competitive pressure on the dominant power generation fuels coal and natural gas.


    “Dong and EnBW are banking on turbines that are three to four times bigger than those today,” said Keegan Kruger, analyst at Bloomberg New Energy Finance. “They will be crucial to bringing down the cost of energy.”




    https://www.bloomberg.com/news/articles/2017-04-20/gigantic-wind-turbines-signal-era-of-subsidy-free-green-power
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    Default Re: Renewable Energy Efficiency

    As a general rule the most successful man in life is the man who has the best information.

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    Default Re: Renewable Energy Efficiency

    The missing link?







    The dreams of major improvements in energy storage may finally be materializing. Over the past several years, utility regulators in the U.S. and Europe have mandated investment in energy storage. This means bankers are starting to finance large-scale energy-storage projects that have been the missing link the renewable energy revolution. This is because intermittent power sources like solar and wind often cannot be added to the electric grid at the right times, forcing the need for expensive electricity storage.

    Utilities are starting to offer longer contracts and developers expect to build $2.5 billion in storage systems globally this year. The amount of global energy storage capacity – which can come as lithium-ion batteries, flow batteries and flywheels – is forecast to grow 15-fold by 2024, according to Bloomberg.
    As a general rule the most successful man in life is the man who has the best information.

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    Default Re: Renewable Energy Efficiency

    J. Ambrose, Telegraph

    The UK's renewable energy industry clinched international contracts totalling billions of pounds last year as firms jostled to take a leading role in the growing global market for wind and marine power, a report from the industry group Renewable UK said. Using a sample of 36 UK-based companies in the wind and marine energy sector from its membership base of around 400 firms, Renewable UK estimated the total value of exports last year could be close to 2bn.


    http://www.telegraph.co.uk/business/...orth-billions/
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    Default Re: Renewable Energy Efficiency

    Quote Originally Posted by Count Bobulescu View Post
    J. Ambrose, Telegraph

    The UK's renewable energy industry clinched international contracts totalling billions of pounds last year as firms jostled to take a leading role in the growing global market for wind and marine power, a report from the industry group Renewable UK said. Using a sample of 36 UK-based companies in the wind and marine energy sector from its membership base of around 400 firms, Renewable UK estimated the total value of exports last year could be close to 2bn.


    http://www.telegraph.co.uk/business/...orth-billions/
    Is any of this operating without subsidy ?
    “ We cannot withdraw our cards from the game. Were we as silent and mute as stones, our very passivity would be an act. ”
    — Jean-Paul Sartre

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    Default Re: Renewable Energy Efficiency

    Quote Originally Posted by C. Flower View Post
    Is any of this operating without subsidy ?
    Have no idea on the specific contracts reported, but I doubt the UK gummint would pay subsidies for contracts designed to benefit other countries.

    I do know that in 2015 UK began a process of phasing out all renewable subsidies scheduled to be completed by 2020.
    As a general rule the most successful man in life is the man who has the best information.

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    Default Re: Renewable Energy Efficiency

    Cheaper solar cells on the way, maybe........



    After a 170-year delay, the discovery of a strange, metallic-looking rock found in the Ural Mountains in Russia in 1839 has ignited a global technology race for a cheaper, more efficient solar cell. It could seriously disrupt the world's solar market, currently dominated by China.
    The features of the rock led to the understanding that there was not a particular mineral involved, but a class of minerals that share a common crystalline structure of cubes and diamondlike shapes. The structure was named for Lev Perovski, a Russian mineral expert who first studied it. He died in 1856. Later, researchers found that mineral deposits containing perovskite structures were cheap and abundant throughout the world.
    But scientists weren't sure what to do with them until 2009, when a Japanese researcher found that perovskite could absorb sunlight and turn it into electricity. It was remarkably similar to prepared silicon cells. Only perovskite cells selected stronger photons of sunlight and promised to be much cheaper to prepare than silicon cells, which require 14 steps to manufacture, including preparations requiring the use of high heat, expensive automation and clean rooms.
    The potentially cheaper cost of materials and manufacturing has led to a first wave of commercial perovskite ventures, including at least two that are forming in the United States. They are aiming for products that could challenge China's dominance of the global solar market and help spread manufacturing around the world.
    “It's amazing how fast this has come along,” said Matthew Beard, a chemist and senior scientist at the National Renewable Energy Laboratory in Boulder, Colo., one of at least 20 research centers and universities around the world that are working with perovskite.
    He said that while experimenters are still wrestling with a stability problem in perovskite solar cells that, so far, has given them a shorter life span than silicon-based solar cells, there are ways to overcome that. Beard and other NREL researchers think the new crystalline materials could be the basis for a more competitive U.S. industry and the jobs that come with it.
    https://www.scientificamerican.com/a...n-solar-cells/
    As a general rule the most successful man in life is the man who has the best information.

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    Default Re: Renewable Energy Efficiency

    Sights now set on oil..........and the article doesn't even mention solar.......

    Wind Power Capacity Has Surpassed Coal in Texas

    Sonia Smith, Texas Monthly

    Wind power capacity edged out coal for the first time in the Texas history last week after a new 155-megawatt wind farm in Scurry County came online. The farm in question is the Fluvanna Wind Energy Project, located on some 32,000 acres leased from more than 130 landowners.
    As a general rule the most successful man in life is the man who has the best information.

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