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Sweden plans to be world's first oil-free economy

86 replies

monkeytrousers · 12/02/2006 14:20

Sounds like a good plan, lets hope it catches on!

OP posts:
Blandmum · 15/02/2006 13:50

OK the impossibility thing.

Imagibe that you and I are playing cards, and we deal them out in a random order, what are the odds that if we re-deal them we will get the exact same order? Impossible, or at any rate , very very very improbable.

But it doesn't alter the fact that we got that order fisrt time, does it?

And we are talking about a lot of deals here!

peacedove · 15/02/2006 13:54

MB, I don't think we have worked out the possibility odds carefully. It is just so small, it is well-nigh impossible. And that is for the simplest protein. Now think of the odds where the replicating DNA is formed. And there would have to be many such instances for the DNA to survive long enough to duplicate itself.

Blandmum · 15/02/2006 13:59

But remember that you don't have to 're start' from scratch each time a structure is 'built'

And you are quite right there will be billions of times when the structure didn't 'work' and couldn't replicate. But you can get billions of 'goes' over billions of years. What 'works' gets passed on, what doesn't goes to the wall. Small steps.

And life eveloved from the most simple and deveopled from that.

BTW there is a theory that mitochondia in higher cells were originaly bacteris that have evolved a symbiotic realationship with the 'engulfing' cell... and similarly chloroplasts in plant cells.

Must tell you that evolution isn't my strong point though.

peacedove · 15/02/2006 14:02

MB won't harp on this pont, but I do have reservations.

Very interesting, though.

Has a duplicating/replicating protein been synthesized yet in a sterile laboratory?

Blandmum · 15/02/2006 14:19

They know its structure, so I would thing so, yes. They may well have extracted it and analysed it usinf x ray diffrection etc This is what it looks like

DNA polymerase...the ezyme that builds the new DNA strands

and this one

the enzyme that 'unwinds' the DNA before replication takes place

these are scematic representations you understand....the red coulds are part of the secondary structure called alpha helixes.....these are held together by those hydrogen bonds that keep cropping up. We only exsist because of hydrogen bonds! Minute shifts in charge in hydrogen electron orbits.

In actual fact it is more complex than this, but I'm giving you the potted version since it is at the limits of my understanding and familiarity

Here are two amazing photos that I shaw all the kids

the origibl photo that allowed the deduction of the DNA structure

and this one

andthis is a real picture of a real strand of DNA under and electron microscope

Blandmum · 15/02/2006 14:22

I'll blow my own trumpet here a little. The last time I taught this to the sixth form they were just blown away. As luck would have it a group of prosepective parents came into the lab to have a look around and one of the boys was gibbereing, 'that is just so amazing! What she told us was just so amazing'

rather good for the ego! I wonder if they signed up?

monkeytrousers · 15/02/2006 15:22

Oh, I like this thread!

OP posts:
peacedove · 15/02/2006 15:34

If you could show them the film I talked of, they would be even more amazed. That was in colour, the RBCs being really red coloured discs. Then they showed the top of the RBC having been "cut" away by electrom beam bombardment, and in a healthy one you coould see the strands all straight, while the diseaed ones had the strands twisted.

Would be in BBC2 archives, if they keep films about thirty years old.

And being able to soecify the structure isn't the same as being able to synthesize it. I remember a lot of excitement over a report that a small duplicating protein (or aminoacid) had been synthesized, but the excitement died down. Didn't hear anything again. That's why I am asking.

peacedove · 15/02/2006 15:36

Oh, I mean a molecule that duplicates itself. Has that been synthesized?

Blandmum · 15/02/2006 16:53

they have made synthetic DNA....it is part of the reason tey worked out what the DNA code stands for.

I don't know if they have generated self replicating polymers. I do know that if you mix the nucletides with the right enzymes , strands should form. That is simple chemistry

uwila · 09/03/2006 13:42

REsurecting this topic, I thought this article was interesting. Doesn't sound oil-free to me. sounds more like their aim is nuclear free.

Sweden: Energy provision
[EIU Viewswire]
EIU Viewswire via NewsEdge Corporation :

COUNTRY BACKGROUND

FROM THE ECONOMIST INTELLIGENCE UNIT

The use of nuclear power is still controversial

Energy emerged as a major political issue in Sweden in the early 1970s, when the oil crisis revealed the extent of the country's dependence on imported oil, as well as a lack of refinery capacity. As a result, such capacity was expanded, and heavy investment was also made in nuclear power to meet the high level of demand per head for electricity. Oil, hydroelectricity and nuclear power are now the country's principal sources of energy. As Sweden has no commercially exploitable oil, gas or coal reserves, it imports around 70% of its energy raw material needs, mostly in the form of oil, 65% of which originates in the North Sea. Oil consumption has fallen by around 40% since 1970, as oil, particularly that used for heating, has been replaced by electricity from nuclear power and hydropower sources, and biofuels. Hydropower and nuclear power now provide most—92% in 2003—of the country's electricity, and nuclear power contributed around 49% of domestic electricity production in that year.

In international terms Sweden produces a significant proportion of its electricity from renewable resources (around 50%), far more than the EU average of about 15%. Hydropower still remains by far the dominant renewable resource. Potential hydroelectric capacity is about 20,000 mw, of which about 80% has been developed. Future expansion has become increasingly expensive and is also opposed on environmental grounds.

As of October 2005 Sweden had ten nuclear reactors with a power capacity of 8,857 mw. No other country in the world produces as much electricity from nuclear power per head as Sweden. Commercial nuclear power began in 1972, when the first reactor went into operation, with the 12th and last opening in 1985. The use of nuclear power has long been a political issue in Sweden: following the Three Mile Island accident in the US, a referendum was held in 1980 canvassing three options for phasing out nuclear power (although none for continuing it). A majority of voters favoured running the plants until the end of their normal operating lives (approximately 25 years), and more recent opinion polls indicate that this is still largely the case. At the time of the referendum the government established a target of decommissioning Sweden's 12 nuclear reactors by 2010. However, in the mid-1990s it was recognised that this would be both economically and environmentally impossible, given the need to secure alternative viable sources of energy. An agreement reached by parliament in 1997 stipulated that plant closures should not raise electricity prices, reduce the supply of electricity to Swedish industry, or harm the environment. In 1999 the Barseback 1 reactor became the first nuclear plant to be shut down, and in May 2005 the Barseback 2 reactor also closed, following several years of negotiations. The decision to shut down the Barseback 2 reactor was largely opposed by industry groups and by a majority of Swedes, who are concerned that a lack of new power sources will lead to rising energy costs (the plant accounted for around 3.75% of Sweden’s total electricity production). The government is hopeful that a new gas pipeline between Germany and Sweden, plans to import electricity from Finland, an upgrading of existing nuclear plants and increased use of wind power, biofuels and solar energy will make up any shortfall in electricity generation. In May 2003 Sweden introduced a system of electricity certificates, with the aim of increasing the amount of electricity supplied by renewable energy sources by 10 twh/year between 2002 and 2010.

Sweden began importing natural gas in 1985. Its share of the country's total energy supply is small—around 2% in 2004—largely because the distribution network for natural gas is restricted to the south-west of Sweden (the main transmission pipeline, owned and operated by Dong Naturgas of Denmark, runs along the west coast from Trelleborg to just north of Gothenburg). In those areas where natural gas is available, it accounts for around 20% of total energy use, mainly in heating and industry. Natural gas imports come exclusively from the Tyra Field in the North Sea close to Denmark. Following the government's announcement in October 2004 regarding the proposed phasing out of nuclear power, attention is expected to focus increasingly on natural gas as the only viable short-term solution for power generation. In 2004 the Sydkraft energy group (majority-owned by the German E.ON group and renamed E.ON Sweden in September 2005) was granted permission by the government to construct a new gas pipeline between Germany and Sweden, via Denmark. This will be the country’s second supply point for natural gas, and is due to be completed by 2009. E.ON Sweden is one of a number of companies investigating the possibility of extending the existing transmission pipeline into central Sweden (including Stockholm). The natural gas market was opened up to competition in 2003, initially for those industrial consumers using more than 15m cu metres per year. A new natural gas act came into force in Sweden in July 2005, under which all non-domestic customers are entitled to choose their own supplier. This increased the number of eligible consumers from less than a dozen to about 2,600, which account for around 95% of Sweden’s total consumption of natural gas. As of May 2005 there were eight natural gas companies in Sweden (Sydkraft/E.ON Sweden was the largest, with a market share of 49% in 2004), supplying around 55,000 end-users. From July 2007 all customers will be entitled to choose their gas supplier.

Sweden participates in the Nordic electricity market

The electricity market became fully liberalised in 1996. Electricity companies from France, Finland, Germany and other countries bought large shares in Sweden's electricity operators, while Swedish firms have established a foothold abroad. Following liberalisation, Sweden began to participate in Nord Pool (the Nordic Power Exchange), the world's first international commodity exchange for electricity. Nord Pool manages electricity spot and futures markets covering Sweden, Norway, Denmark, and Finland. Liberalisation helped to lower prices for large businesses, but according to the electricity subindex of the consumer price index, prices for consumers rose on average by 5.6% per year between 1996 and 2003, although these rises may reflect in part the impact of the "green tax shift" policy adopted by the government in recent years. Household consumers also face significant regional price differences, but consumers who found themselves locked into one electricity distributor are now allowed four cost-free changes per year.

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