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    • CommentAuthorGBP-Keith
    • CommentTimeFeb 8th 2008 edited
     
    I've just listened in to 'Costing the Earth' on radio 4 and their presenter introduced a chap from Southampton University that told the listener that they could buy and install 15 sq metres of solar PV for just £5,000!!

    We need to find his supplier.

    Though the presenter then went on to say this would provide the average householder with all their energy for the year. In defense of the Southampton boffin he did say this would be 'in theory'

    Who does their research?

    Nice to hear Dave Elliot of the Open University on the programme who, by the way, did talk a lot of sense.
    • CommentAuthortony
    • CommentTimeFeb 8th 2008
     
    Can you give us a reference for the podcast please?

    Keith is a nice guy.
    • CommentAuthorBowman
    • CommentTimeFeb 8th 2008
     
    Not thin film cells at $1/w by any chance?
    • CommentAuthorGBP-Keith
    • CommentTimeFeb 8th 2008 edited
     
    No podcast just listen again. I have to admit I walked away soon after the cheap pv's were mentioned.

    http://www.bbc.co.uk/radio4/science/costingtheearth.shtml

    I assume you reside in the USA Bowman! In the UK it is nearer £1.00 per watt

    No your'e the lovely one Tony!
  1.  
    I thought much of it a rather good programme. The stuff on solar powered generation of electricity in North Africa and trans-continent HVDC grid is important and deserves greater attention. We're going to be hearing a lot more about that. The low point of the programme was the walk on part played by our apology for an Energy Minister, Malcolm Wickes.
  2.  
    I wasn't aware that you could possibly get all your energy from solar sources in the UK.
  3.  
    No, but the UK could import solar energy from North Africa and export wind, tidal and wave energy, depending on the weather.
    • CommentAuthorGBP-Keith
    • CommentTimeFeb 9th 2008 edited
     
    Actually I'm the one talking cobblers at the moment because solar PV prices in the UK are £4.00 per watt for polycrystalline panels right now and more for mono. these are just off the shelf prices too so we can see how the claims made on Costing the earth cannot stack up.

    These prices are as likely to go up as they are to come down so don't delay buying on the assumption that increased demand will bring prices down!

    However, trying to find a price for thin film supplies in the UK just gets you stuck in one of those revolving Google loops that goes round in circles till you are fed up searching. If anyone knows of the price per watt then please post it here.
    • CommentAuthorGBP-Keith
    • CommentTimeFeb 9th 2008 edited
     
    Posted By: chipedwoodI wasn't aware that you could possibly get all your energy from solar sources in the UK.


    You can if your installation is big enough and you are prepared to export and import from the grid.

    For off-grid you will need a hybrid system and take your demand by the horns and tame it.
  4.  
    I think the point is that we in the UK could use a great deal of solar derived electricity, but the sun would shine in North Africa and the electricity, generated mostly by concentrated thermal steam driven turbines, would be imported on a HVDC grid.

    I wouldn't hold your breath waiting for the price of solar pv, either silicon waver or thin film, to drop. Looking over the next decade the price of energy generally will be governed by the oil depletion rate. Demand for pv will exceed production capacity for a long time ensuring that price will follow the trend of oil prices, i.e. upwards.
    • CommentAuthorandytk
    • CommentTimeFeb 9th 2008
     
    I really hate to burst your bubble on the North Africa HVDC solar idea, but currently the Paris-Dakar rally has been cancelled this year due to unacceptable risks of terrorism.

    This from an rally which routinely accepts deaths on the part of both spectators/participants.

    So if anyone thinks that Europe can build huge stationary power generation systems and power lines stretching to Spain and not have them suffer the same hostility as a small organised event, then I'd say that's the very definition of optimism.

    Remember much of Africa is populated with poverty stricken Muslims and the fundamentalists are doing their level best to recruit as many of these folk as possible. Remember that pissed off locals can cause huge problems. Look at the situation in Nigeria. Fundamentalists won't care if its a dirty or a clean power source, if it powers our western civilisation, then it will be a target all the same.

    Although for the record I think the solar concentrating power systems in the desert are a good idea in principle. I just think we'll really struggle with cost effective implementation.

    Given that I'm generally pro nuke, I'd rather have domestic nukes (where we can defend/keep an eye on them) rather than have huge, expensive power systems in someone else's sovereignty. A good example of that going bad is Venezuela, where most of the foreign investment was nationalised (stolen) from shareholders in the west.

    Andy
  5.  
    '' our apology for an Energy Minister, Malcolm Wickes ''

    Lay off him, Biff, I get all my cement and joist hangers from his shop....
  6.  
    I agree with Andy on this one. Solar power in the Sahara seems no more secure to me than gas from Russia and the Persian Gulf.
    • CommentAuthorJoatex
    • CommentTimeFeb 9th 2008
     
    So the UK needs storage to use the power generated in the summer for winter use. So does NZ, the spring melt feeds into the lakes available for later use in hydro-electric generation. The lake levels do run a mite low towards the end of the winter but if they used wind power of which there is plenty they could use that generated power to pump water back into the lakes for future power generation. Could the UK do likewise but in a much larger scalet than the present hydro store in Wales? We certainly need to have 'in-house' power generation and storage rather than energy from outside the UK
    • CommentAuthorbiffvernon
    • CommentTimeFeb 9th 2008 edited
     
    Ooops, no e in Wicks. Thanks Nick. :)

    Right, Andy, let's give up on Africa as 'populated with poverty stricken Muslims and the fundamentalists' shall we? Or maybe we should make a bit more effort to be friends. It could be to our mutual benefit. Frankly, I'm not interested in listening to people who look at impossible problems and say "it can't be done". If humanity as we know it is going to survive we've got learn how to do at least six impossible things before breakfast.

    The bigger and more interconnected we can create our grids the more we become mutually dependant. That way security lies. And that is not incompatible with having a lot of domestic generation capacity, including dispersed micro-generation, giving further layers of security. It is likely that with Britain's windy, wavy, tidey position the UK could be a net energy exporter. An HVDC grid makes for system stability.

    Here's a first step in the right direction: http://www.ukinvest.gov.uk/OurWorld/4025455/en-GB.html

    Venezuela going bad? I rather think that the flow of wealth between Venezuela and 'the west', has been pretty much in one direction until very recently.
    • CommentAuthorGBP-Keith
    • CommentTimeFeb 11th 2008
     
    Radio Four seems hell-bent of playing up the 'bright future' scenario at the moment. The message that this programme portrayed was one that will continue to lull the populous into thinking that everything is hunky-dory and we can 'carry on consuming'.
  7.  
    <blockquote><cite>Posted By: andytk</cite>Remember much of Africa is populated with poverty stricken Muslims and the fundamentalists are doing their level best to recruit as many of these folk as possible. Remember that pissed off locals can cause huge problems.</blockquote>

    Actually I got the impression from the program that the solar mirrors project was going to be very beneficial to locals, be they 'poverty stricken Muslims' or ordinary people like most Afrikans I know and/or are related to.

    Under the shade of the installations it will be possible to grow things, so the net result for local communities will be energy, food and an income from selling power to Europe.

    That's assuming it isn't all owned by npower or Gritish Bass...
    • CommentAuthorliberteeen
    • CommentTimeFeb 11th 2008
     
    A client recently wanted PV panels, I went through all of the UK suppliers who wanted 15000 plus but also found a company in Germany who was cheaper than all the UK suppliers even with the grant. The client cancelled the installation eventually because of the cost so I didn't follow it through. I did read that the German companies were heavily State subsidised which may account for the difference. I find across the board that on green technology it is a case of rip off britain by the middlemen suppliers.
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