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Posts Tagged ‘Renewable Energy’



Solar power will take over soon

By Tor Økland Barstad on March 9th, 2010

The sunlight that hits earth in one hour is enough to cover the worlds energy demand for well over a year.

The surface of the Earth receives an amount of solar energy equivalent to roughly 10 000 times the worlds energy demand. Of course there isn’t always sunlight, but the solar panels can store the energy, and they are getting better and better at it. A solar panel converts one sixth of the sunlight into electrical energy. Although they also are getting able to turn more and more of the sunlight into energy, they are already so efficient that space isn’t much of an issue anymore. The area of solar cells needed to supply a family with electricity is usually much smaller than the roof of their house. And when including the land required for mining and excavation of coal, CPS-plants (power-plants that rely on solar energy) are more space-efficient than power-plants fueled by coal. Solar power is roughly fifty times as space-efficient as growing crops for bio fuels. And that’s just with the technology that currently is commercialized.

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£50bn investment needed for the proposed supergrid between Africa and Europe to become a reality

By Simon Leufstedt on May 14th, 2009

Sahara desert in Morocco

The image shows the sun shining through the clouds on the Sahara desert in Morocco. Photo by: GETA.80.

New findings from Dr Anthony Patt of the International Institute for Applied Systems Analysis in Africa shows that the proposed supergrid that could power all of Europe with renewable energy only would need around £50 billion of government funded money to become a reality.

The £50 billion government investment would, according to Patt, convince private companies that the supergrid idea is both “feasible” and “attractive”, the Guardian reports.

“In the long term, such a plan, combined with strings of windfarms along the north Africa coast, could “supply Europe with all the energy it needs”.

He said technological advances combined with falling costs have made it realistic to consider north Africa as Europe’s main source of imported energy.

“The sun is very strong there and it’s very reliable. There is starting to be a growing number of cost estimates of both wind and concentrated solar power for North Africa….that start to compare favourably with alternative technologies. The cost of moving [electricity] long distances has really come down.”

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Sweden to build Europe’s largest wind farm

By Simon Leufstedt on April 16th, 2009

West of Condon
Creative Commons License Photo credit: jesse.millan

Sweden might be the host for Europe’s largest wind farm if the Swedish government approves the proposed plans. The wind farm will be located in Markbygden near Piteå in northern Sweden and will have a total of 1,101 wind turbines.

“This would be Europe’s, if not the world’s, biggest wind farm,” Caj Noren, a spokesman for the board, told AFP. Construction could begin in two-and-a-half years and would be completed after about a decade, Noren said.

Once constructed the wind farm will produce between 8 to 12 terawatt hours per year and would alone meet Sweden’s national wind power target to reach 10 terawatt hours by 2015. The wind farm is expected to cost about 55 billion Swedish Kronor (around $6.9 billion or €4.5 billion) to construct.

The Swedish right-wing government recently announced that they will reverse a nearly 30-year-old ban on building nuclear power plants. Its madness when we can get cheap, clean renewable energy and at the same time create thousands of new jobs from wind farms like this one.

Costing CO2 abatement – renewables, geothermal and biochar

By Dr Gideon Polya on April 14th, 2009

“The World is running out of time but there is still hope that reason, science and rational risk management will prevail.”

Before the global recession hit (and reduced the soaring price of fossil fuels), the “market cost” of the best renewables had become similar to that of coal burning-based power (see “Hope: best renewables cost same as coal power. “One Day Pathétique” Symphony painting”).

However an Ontario, Canada Government commissioned analysis has revealed that when you take environmental and human mortality impacts into account the “true cost” of coal burning-based power was 4-5 times greater than the “market cost” – this making the best renewables and geothermal much cheaper than the “true cost” of coal burning-based power (see “Ontario study identifies social costs of coal-fired power plants”).

Another way of seeing this is that it can be estimated (from arithmetic projection from the Canada study) that about 5,000 Australians die every year from the effects of deadly pollutants from coal burning (heavy metals, carbon monoxide, radioactivity, soot, nitrogen oxides, sulphur dioxide) i.e. Australia sacrifices 5,000 lives each year on the altar of heavily-subsidized coal burning-based power (see “How many people die from Carbon Burning and Climate Change each year?”).

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President of the Maldives: “Please don’t be stupid!”

By Simon Leufstedt on April 1st, 2009


Message from the President of the Maldives from Age of Stupid on Vimeo.

Mohamed Nasheed, President of the Maldives, gives this inspiring speech in light of the upcoming UN Climate Change Conference this December – the last chance we have to take action against “the greatest threat the world has ever faced”.

In the video (above) Nasheed announces that his country, which is under severe threat from climate change, will go completely carbon neutral in a decade. He also asks the world to unite against carbon pollution and decarbonize the entire world economy.

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Renewable energy could power 40% of global electricity demand by 2050

By Simon Leufstedt on March 24th, 2009

Wind Turbine
Creative Commons License Photo credit: Blyzz

New research from the Helsinki University of Technology’s Advanced Energy Systems in Espoo, Finland, shows that with the help from global cooperation and investment renewable energy will “exceed all previous estimates.”

According to the new findings renewable energy technologies like wind and photovoltaics could supply 40% of the world’s electricity by 2050. But this could only become a reality if the renewable technology is backed up by adequate financial and political support. If not, the renewable share is likely to hover somewhere below 15 percent.

“Our findings demonstrate that with global political support and financial investment, previous notions that the potential for renewables was in some way limited to a negligible fraction of world demand were wrong,” Peter Lund from the Helsinki University of Technology’s Advanced Energy Systems said. “If we prioritize and recognize the value of renewable energy technologies, their potential to supply us with the energy we need is tremendous.”

Previous projections have put the renewable share at only 12% by 2030.

Also read: 10% of U.S. Energy Now Comes From Renewable Energy Sources

Madness: Sweden wants to invest in new nuclear reactors

By Simon Leufstedt on February 17th, 2009

Fallout 3

The Swedish right-wing government seems hell-bent on continue its climate wrecking journey. After calling for as much as 88% of the EU emission cuts to be allowed to do overseas in development countries the government now want to scrap a 30-year-old ban on the building of nuclear power plants.

“The Swedish plan was agreed by the center-right coalition government and foresees the building of new reactors at the 10 sites where reactors still are operating. Under the plan, which still needs approval from the country’s parliament, Sweden would replace existing reactors gradually.”

While ignoring the 1980 referendum when a majority of the Swedish people voted to end expansion and completely phase out nuclear energy they also seem to take no notice of the facts that nuclear energy is still dangerous, not cost-effective, and too expensive and will even worsen climate change.

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Watch: Al Gore Senate Testimony on Climate Change

By Simon Leufstedt on February 15th, 2009

Here is the full video of Al Gore’s testimony before the Senate Foreign Relations Committee about repowering America and the need for USA to resume global leadership on the climate crisis. You can read and watch his opening statement here.

Watch the whole testimony below:

You can also watch it on YouTube.

Obama says he is serious about energy independence

By Simon Leufstedt on February 6th, 2009

barack-obama-energy

In a speech at the Department of Energy yesterday Barack Obama said he and the American people is serious about energy independence. Obama also said his proposed American Recovery and Reinvestment Plan “will begin to end the tyranny of oil in our time.”

In the speech Obama said the renewable energy industry “will create hundreds of thousands of jobs over the next few years” and “millions more after that”. Obama said he will invest in a “better, smarter electricity grid” that can deliver clean renewable electricity from one end of the country to another. Obama also said he will “lead a revolution in energy efficiency” saying it will create jobs and save taxpayers $2 billion each year and “billions of dollars more on their utility bills”. He said his investments in the US mass transit system will be “a significant down payment on a cleaner and more independent energy future.”

Obama also criticized the Republicans who have spoken out against his American Recovery and Reinvestment Plan: (more…)

Sweden’s biggest wind farm is in planning stage, will supply as much energy as a nuclear plant

By Simon Leufstedt on February 5th, 2009

Off-shore Wind Farm Turbine
Creative Commons License Photo credit: phault

Sölvesborg, a small village near the coast located in southern Sweden, was first in the world with sea-based wind power. And now it might become the place for Sweden’s and northern Europe’s largest offshore wind farm.

The renewable energy companies Vingkraft AB and Eolus Vind AB wants to construct 500 wind turbines in the sea outside of Sölvesborg by 2014-2019. Once completed the wind farm will supply 5-7 TWh of electricity every year. That is equal to the amount of electricity the now decommissioned Swedish nuclear plant Barsebäck generated every year.

Although the proposed wind farm have a long way to go and many different instances to pass, such as the military, before getting approved the local politicians and people in the region are excited. The politicians believe the wind farm will create thousands of new jobs in the region and even act as a way to attract more tourists.

The wind farm is expected to cost 50 billion Swedish kronor, equal to around €4.5 billion.

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