[NukeNet] Cheap solar power poised to undercut oil and gas by half

Fri Feb 23 14:58:24 EST 2007

          http://www.telegraph.co.uk/money/main.jhtml?xml=/money/2007/02/19/ccview19.xml  Monday view: Cheap solar power poised to undercut oil and gas by half
By Ambrose Evans-Pritchard
  Last Updated: 11:31pm GMT 18/02/2007

  Within five years, solar power will be cheap enough to compete with carbon-generated electricity, even in Britain, Scandinavia or upper Siberia. In a decade, the cost may have fallen so dramatically that solar cells could undercut oil, gas, coal and nuclear power by up to half. Technology is leaping ahead of a stale political debate about fossil fuels.

  Anil Sethi, the chief executive of the Swiss start-up company Flisom, says he looks forward to the day - not so far off - when entire cities in America and Europe generate their heating, lighting and air-conditioning needs from solar films on buildings with enough left over to feed a surplus back into the grid.
  The secret? Mr Sethi lovingly cradles a piece of dark polymer foil, as thin a sheet of paper. It is 200 times lighter than the normal glass-based solar materials, which require expensive substrates and roof support. Indeed, it is so light it can be stuck to the sides of buildings.

  Rather than being manufactured laboriously piece by piece, it can be mass-produced in cheap rolls like packaging - in any colour.

  The "tipping point" will arrive when the capital cost of solar power falls below $1 (51p) per watt, roughly the cost of carbon power. We are not there yet. The best options today vary from $3 to $4 per watt - down from $100 in the late 1970s.

  Mr Sethi believes his product will cut the cost to 80 cents per watt within five years, and 50 cents in a decade.

  It is based on a CIGS (CuInGaSe2) semiconductor compound that absorbs light by freeing electrons. This is then embedded on the polymer base. It will be ready commercially in late 2009.

  "It'll even work on a cold, grey, cloudy day in England, which still produces 25pc to 30pc of the optimal light level. That is enough, if you cover half the roof," he said.

  "We don't need subsidies, we just need governments to get out of the way and do no harm. They've spent $170bn subsidising nuclear power over the last thirty years," he said.

  His ultra-light technology, based on a copper indium compound, can power mobile phones and laptop computers with a sliver of foil.

  "You won't have to get down on your knees ever again to hunt for plug socket," he said

  Michael Rogol, a solar expert at Credit Lyonnais, expects the solar industry to grow from $7bn in 2004 to nearer $40bn by 2010, with operating earnings of $3bn.

  The sector is poised to outstrip wind power. It is a remarkable boom for a technology long dismissed by experts as hopelessly unviable.

  Mr Rogol said he was struck by the way solar use had increased dramatically in Japan and above all Germany, where Berlin's green energy law passed in 2004 forces the grid to buy surplus electricity from households at a fat premium. (In Britain, utilities may refuse to buy the surplus. They typically pay half the customer price of electricity.)

  The change in Germany's law catapulted the share price of the German flagship company SolarWorld from €1.38 (67p) in February 2004 to over €60 by early 2006.

  The tipping point in Germany and Japan came once households twigged that they could undercut their unloved utilities. Credit Lyonnais believes the rest of the world will soon join the stampede.

  Mike Splinter, chief executive of the US semiconductor group Applied Materials, told me his company is two years away from a solar product that reaches the magic level of $1 a watt.

  Cell conversion efficiency and economies of scale are galloping ahead so fast that the cost will be down to 70 US cents by 2010, with a target of 30 or 40 cents in a decade.

  "We think solar power can provide 20pc of all the incremental energy needed worldwide by 2040," he said.

  "This is a very powerful technology and we're seeing dramatic improvements all the time. It can be used across the entire range from small houses to big buildings and power plants," he said.

  "The beauty of this is that you can use it in rural areas of India without having to lay down power lines or truck in fuel."

  Villages across Asia and Africa that have never seen electricity may soon leapfrog directly into the solar age, replicating the jump to mobile phones seen in countries that never had a network of fixed lines. As a by-product, India's rural poor will stop blanketing the subcontinent with soot from tens of millions of open stoves.

  Applied Materials is betting on both of the two rival solar technologies: thin film panels best used where there is plenty of room and the traditional crystalline (c-Si) wafer-based cells, which are not as cheap but produce a higher yield - better for tight spaces.

  Needless to say, electricity utilities are watching the solar revolution with horror. Companies in Japan and Germany have already seen an erosion of profits because of an effect known "peak shaving". In essence, the peak wattage of solar cells overlaps with hours of peak demand and peak prices for electricity in the middle of the day, crunching margins.

  As for the oil companies, they are still treating solar power as a fringe curiosity. "There is no silver bullet," said Jeroen Van der Veer, Shell's chief executive.

  "We have invested a bit in all forms of renewable energy ourselves and maybe we'll find a winner one day. But the reality is that in twenty years time we'll still be using more oil than now," he said.

  Might he be wrong?

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"While America obsessed about Brittany's shaved head, Bush offered a 
budget that offers $32.7 billion in tax cuts to the Wal-Mart family 
alone, while cutting $28 billion from Medicaid." -- Matt Taibbi, Rolling Stone

"It is vital that our state understand that once PG&E and SCE are no longer generating electricity from Diablo Canyon and San Onofre, high-level radioactive waste will be left on our coast vulnerable to attack. No longer will it be a matter of 'We need the power so the risk is worth it.'   The utility - the jobs, property taxes and donations to the community will be gone. Only the risk will remain for our children and grandchildren." - Rochelle Becker, Alliance for Nuclear Responsibility

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