Tag Archives | Wind Power

Renewable Energy Will, In Fact, Not Solve Climate Change

Y U NO STOP CLIMATE CHANGEjpg

Y U NO STOP CLIMATE CHANGE?

 

Ross Koningstein & David Fork via IEEE Spectrum:

Starting in 2007, Google committed significant resources to tackle the world’s climate and energy problems.

Google’s boldest energy move was an effort known as RE<C, which aimed to develop renewable energy sources that would generate electricity more cheaply than coal-fired power plants do. The company announced that Google would help promising technologies mature by investing in start-ups and conducting its own internal R&D. Its aspirational goal: to produce a gigawatt of renewable power more cheaply than a coal-fired plant could, and to achieve this in years, not decades.

Unfortunately, not every Google moon shot leaves Earth orbit.  By 2011, it was clear that RE<C would not be able to deliver a technology that could compete economically with coal, and Google officially ended the initiative and shut down the related internal R&D projects.  The conclusion: even if Google and others had led the way toward a wholesale adoption of renewable energy, that switch would not have resulted in significant reductions of carbon dioxide emissions.

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In 10 Years Solar and Wind Power Will Be the Cheapest Forms of Energy in Northeast Asia

Intel Free Press (CC BY 2.0)

Intel Free Press (CC BY 2.0)

Via Lappeenranta University of Technology:

A new study demonstrates that an energy system based completely on renewable forms of energy will be economically viable in the future. Research done at Lappeenranta University of Technology (LUT) shows that it will be worthwhile for North-East Asia, and China in particular, to switch to a completely renewable energy system within 5–10 years. According to the Neo-Carbon Energy project, which conducted the research, the price of solar electricity will drop by half by 2025−2030.

Completed at the end of last year, the study concluded that within ten years solar and wind power will be the cheapest forms of energy production for Asia’s largest energy markets. According to LUT Professor of Solar Economy Christian Breyer, this is because renewable energy is the cheapest way of producing energy in Asia.

Economic viability has been one of the challenges of making the transition to renewable energy sources and doing so on the terms of the market.

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The DanTysk Offshore Wind Power Project

We managed to piss some of you off with a sponsored post from Shell, so we killed that and commit to you that we won’t take sponsored posts from oil and gas companies again. In return, please like this one about The DanTysk wind power plant, which will generate 1.3 billion kWh of clean electricity for Munich.

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Why Wind Power is a Sham

Picture: JMT (PD)

Via Root Force:

A series of recently released studies make it clear that wind power is not going to save us—not from global warming, not from high extinction rates, and not from the system of high-energy-consumption industrial exploitation that is killing the planet.

Let’s start with the most damning findings: even the most large-scale shift to wind power cannot slow greenhouse gas emissions enough to have any positive effect on the climate, although it may manage to make things worse. Why?

A study published in Nature Climate Change in September found that although hypothetically there is enough power in the earth’s winds to sustain current levels of energy consumption, in practice you could never harvest enough energy from wind to affect the climate:

Turbines create drag, or resistance, which removes momentum from the winds and tends to slow them. As the number of wind turbines increases, the amount of energy that is generated increases.

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Koch-Fueled “Americans For Prosperity” Plans Protest Against “Extremist” Kids Flying Kites

Stephen Lacey writes on ThinkProgress:
Americans for Prosperity now sees children flying kites as a major threat to society. Earlier today, I opened my email box to find an uproarious AFP promotion for a protest in Asbury Park and Ocean City, New Jersey this Friday. What are they so upset about? An event so dastardly and maniacal, it has the potential to tear down everything we love about our freedoms as Americans. I almost couldn’t stomach it when I found out more. Yes, it’s “extremist” kids from the Boys and Girls Club and local schools flying kites in support of offshore wind energy. Don’t worry, AFP is on the case (as explained on their website, accompanied by the smoking wind turbine)...
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Wind Turbines That Learn Like Humans

Wind FarmVia ScienceDaily:

Depending on the weather, wind turbines can face whispering breezes or gale-force gusts. Such variable conditions make extracting the maximum power from the turbines a tricky control problem, but a collaboration of Chinese researchers may have found a novel solution in human-inspired learning models.

Most turbines are designed to produce maximum allowable power once winds reach a certain speed, called the rated speed. In winds above or below the rated speed, control systems can make changes to the turbine system, such as modifying the angle of the blades or the electromagnetic torque of the generator.

These changes help keep the power efficiency high in low winds and protect the turbine from damage in high winds. Many control systems rely on complex and computationally expensive models of the turbine’s behavior, but the Chinese group decided to experiment with a different approach.

The researchers developed a biologically inspired control system, described in the American Institute of Physics’ Journal of Renewable and Sustainable Energy, that used memory of past control experiences and their outcomes to generate new actions.

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German Inventor Saves Fuel By Flying A Kite

SkySail kite being demonstrated at promotional event. Photo: Ursula Horn (CC)

SkySail kite being demonstrated at promotional event. Photo: Ursula Horn (CC)

SkySails has invented a method that could cut down on ‘fuel consumption, costs and carbon footprints’ for commercial ships by developing giant kites. The Raw Story reports:

The blue-hulled vessel would slip by unnoticed on most seas if not for the white kite, high above her prow, towing her to what its creators hope will be a bright, wind-efficient future.

The enormous kite, which looks like a paraglider, works in tandem with the ship’s engines, cutting back on fuel consumption, costs, and carbon footprint.

“Using kites you can harness more energy than with any other type of wind-powered equipment,” said German inventor Stephan Wrage, whose company SkySails is looking for lift-off on the back of worldwide efforts to boost renewable energy.

The 160-square-metre (524-square-foot) kite, tethered to a yellow rope, can sail 500 metres into the skies where winds are both stronger and more stable, according to the 38-year-old Wrage.

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