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Green Building Bible, Fourth Edition
Green Building Bible, fourth edition (both books)
These two books are the perfect starting place to help you get to grips with one of the most vitally important aspects of our society - our homes and living environment.

PLEASE NOTE: A download link for Volume 1 will be sent to you by email and Volume 2 will be sent to you by post as a book.

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    • CommentAuthorringi
    • CommentTimeMay 29th 2015
     
    Until the planning system allows basic homes to be factory build, we will not get the cost down.

    This also can not happen until the UK housing sector stops being so "up and down", as no one will invest the capital in a mass production home factory, not know if there will be any demand for new built homes in 3 years time.
    •  
      CommentAuthorSteamyTea
    • CommentTimeMay 29th 2015
     
    Isn't it the land value that is keeping prices high?

    The house factory near me can make 30 houses a week. Not sure if they are.
    • CommentAuthorEd Davies
    • CommentTimeMay 30th 2015
     
    I think so, though really the other way round. As you say, with limited building land available house prices are set by what the market can bear which is, in turn, set by what the lenders will lend. Building is relatively competitive (nobody makes money building in more expensive ways than others around them do) so the land prices expand to fill the difference.
    • CommentAuthorborpin
    • CommentTimeMay 30th 2015
     
    Land price is not a great problem to public authorities doing the building. Most of them have plenty of it just not the finance to do it.
    • CommentAuthorGarethC
    • CommentTimeMay 30th 2015
     
    Yes, it is indeed the land price that takes up most of the 'value', but it does derive from the ultimate value of the houses that can be built on it.

    It's interesting to note the massive jump in value once planning permission is achieved (hence the incentive to tax that, as it's essentially a capital gain to the owner).

    And yes, the supply of mortgage finance is a key determinant, although, unlike incomes, it can't grow at a compound rate forever (there's a discussion). House prices fell and rose in direct relation to mortgage finance drying up, then becoming available again.

    Not sure if public authorities have the land or not, but they certainly shouldn't lack the finance. Banks love lending to public authorities as it's one of the safest counterparties you can have. Perhaps it's the inclination and/or other wherewithal. It's not technically in their remit to a great degree these days.
    •  
      CommentAuthorSteamyTea
    • CommentTimeJun 13th 2015
     
    Well this seems to be Amber's first RE endorsement:
    http://www.telegraph.co.uk/news/earth/energy/11663518/Swansea-Bay-tidal-energy-lagoon-gets-green-light-from-Amber-Rudd.html

    I wonder if they really can build it for a £1bn, or about 40 quid for each household if we pay for it in one go.
    •  
      CommentAuthorfostertom
    • CommentTimeJun 13th 2015
     
    The quarry could give you a bit of meaningful employment ST! - and it could go on for decades, as the promoting co plans lots more lagoons around the UK coast.
    •  
      CommentAuthorfostertom
    • CommentTimeJun 13th 2015
     
    Amber's other masterstroke is to promise that all her new nukes will be attractively styled, to win the public over - got the idea from the Thames Barrage apparently.
    •  
      CommentAuthorfostertom
    • CommentTimeJun 13th 2015 edited
     
    Are they going to put rows of wind turbines on it? If not why not, while they're at it?

    Suppose this the end for the Severn Barrage? I was looking forward to a short drive to visit Mike in Swansea, or to collect ebay stuff that says '40 miles away' (as the crow flies).
    • CommentAuthorCWatters
    • CommentTimeJun 17th 2015
     
    I wish they would encourage PV on the roof of new factories and warehouses, especially those on greenfield sites. A vast (1 million square feet) new distribution warehouse near Thrapston on the A14 is nearing completion and there is no sign that they plan to put PV on the roof. But never mind, about 6 miles up the road a farmer is proposing to build a new solar farm on good agricultural land adjacent a conservation area.
    •  
      CommentAuthorSteamyTea
    • CommentTimeJun 17th 2015
     
    That does seem barmy, though there is no harm in having both.

    I can understand that with some existing units there may not be a robust enough local electrical infrastructure, but not on a new build that size.

    Why don't you get in touch with the developers of the solar farm and ask why they are not putting it on the new warehouse?
    • CommentAuthorCWatters
    • CommentTimeJun 19th 2015
     
    I guess I'm mostly annoyed at government policy that doesn't encourage the efficient use of land. It's hard enough finding places where renewable energy won't upset local residents and the roof of this development seems ideal - very hard to see it from the ground.
    •  
      CommentAuthordjh
    • CommentTimeJun 19th 2015
     
    Posted By: CWattersI guess I'm mostly annoyed at government policy that doesn't encourage the efficient use of land. It's hard enough finding places where renewable energy won't upset local residents and the roof of this development seems ideal - very hard to see it from the ground.

    Posted By: SteamyTeaWhy don't you get in touch with the developers of the solar farm and ask why they are not putting it on the new warehouse?

    That seems a good start to beginning to understand whether it is indeed government policy that is at fault and if so in what way and why?
    •  
      CommentAuthorSteamyTea
    • CommentTimeJul 22nd 2015
     
    So in the last week and a bit, our new energy minister has cut both wind and solar subsidies.

    I hope she does the same for nuclear, and all the 'backdoor' payments to the fossil fuel industries.

    I just had a look at what the £1.5bn overspend, over the next five years actually means, about £12 a household if you exclude all the, or about £4 if you exclude all the non-domestic users.

    £4 is the price of a pint in St.Ives.
    • CommentAuthorDarylP
    • CommentTimeJul 22nd 2015
     
    ... was it her I heard this morning on R4 claiming that nuclear is a 'different type of electricity'?:bigsmile:
    • CommentAuthorowlman
    • CommentTimeJul 22nd 2015
     
    Posted By: SteamyTeaSo in the last week and a bit, our new energy minister has cut both wind and solar subsidies.

    I hope she does the same for nuclear, and all the 'backdoor' payments to the fossil fuel industries.

    I just had a look at what the £1.5bn overspend, over the next five years actually means, about £12 a household if you exclude all the, or about £4 if you exclude all the non-domestic users.

    £4 is the price of a pint in St.Ives.



    I hope she does for Anaerobic Digesters too, at least the ones that are not farm scale/closed loop ones.
    •  
      CommentAuthorSteamyTea
    • CommentTimeJul 22nd 2015
     
    Posted By: DarylP'different type of electricity'?
    Yes, that made me smile too.

    Posted By: owlmanI hope she does for Anaerobic Digesters too
    I have mixed feelings about AD.
    It does solve a waste stream problem and generate power, but it also adds to atmospheric CO2.
    Used on site it can be a good power supply and benefits from stored energy, if the waste is transported I am not so sure ust how good it is. There is also the land use issues, though if farmers grows energy crops on Grade A or B land, they are probably not making best use of their assets.

    I can see the argument that, once though planning, there should not be a fixed price for the energy produced, but this does not take into account the price of not having that energy.
    It is a bit like buying a new car when petrol is £1.20/lt, then only having to pay £1.20/lt for the next 20 years, regardless of your mileage, and get others at the gas station to pay your bill. When you get punched on the nose and taken to hospital by someone that feels you don't deserve this special treatment, you then send the full NHS bill, and another for loss of earnings to everyone.

    I think the real problem was that the last Labour government created such a muddle of schemes dismantling then is never going to be easy.
    •  
      CommentAuthorfostertom
    • CommentTimeJul 22nd 2015
     
    Posted By: SteamyTeaAD ... adds to atmospheric CO2
    I thought the whole point of 'anaerobic' is that it's not an oxidation process (to CO2) - produces CH4 instead?
    • CommentAuthorowlman
    • CommentTimeJul 22nd 2015
     
    Posted By: SteamyTeaIt ..................but it also adds to atmospheric CO2.

    Dunno about that ST, but it does add atmospheric ammonia.
    •  
      CommentAuthordjh
    • CommentTimeJul 22nd 2015
     
    Posted By: fostertomI thought the whole point of 'anaerobic' is that it's not an oxidation process (to CO2) - produces CH4 instead?

    Good one, Tom! What do you suppose happens to the methane?

    But seriously, it's only atmospheric oxygen that is excluded. There's still oxygen chemically bound in the feedstock and some of that gets released as CO2 anyway.

    C6H12O6 → 3CO2 + 3CH4 according to wikipedia
    •  
      CommentAuthorfostertom
    • CommentTimeJul 22nd 2015 edited
     
    Posted By: djhWhat do you suppose happens to the methane?
    I thought the other point of 'anaerobic' is that the methane is captured as fuel - so it eventually ends up as CO2 anyway. But no more and no less that wd happen anyway to the original organic matter left to itself.

    So whether 'anaerobic' produces CO2, CH4 etc shd surely be completely immaterial to
    Posted By: SteamyTeafeelings about AD
    AD doesn't
    Posted By: SteamyTeaadds to atmospheric CO2
    •  
      CommentAuthorSteamyTea
    • CommentTimeJul 22nd 2015
     
    There seems to be a bit of a myth that all organic matter rots down to CO2.
    Much of it goes into the ground and gets converted to carbon. Why intensively farmed areas have low carbon content soil.
    •  
      CommentAuthorfostertom
    • CommentTimeJul 22nd 2015
     
    Posted By: SteamyTeaMuch of it goes into the ground and gets converted to carbon
    Emitting hydrogen as water? What's the mechanism?
    Posted By: SteamyTeaintensively farmed areas have low carbon content soil
    because ploughing exposes the carbon to oxidation?
    •  
      CommentAuthorSteamyTea
    • CommentTimeJul 22nd 2015
     
    Generally it decomposes though enzymes, mechanical and some digestion by fauna. Some methane is released, but if you think about how long it takes something to rot down when you are not deliberately composting it, you will know that it can be years.

    I believe that ploughing can released trapped CO2 from the ground, I am not sure what mechanism it is via though.
    •  
      CommentAuthorfostertom
    • CommentTimeJul 22nd 2015
     
    I'm sceptical about hydrocarbon cellulose decomposing to pure carbon - surely endothermic, so where does the input of energy come from? Why doesn't it prefer the more 'downhill' (exothermic) oxidation route (or in absence of oxygen, decomposition to methane)?
    •  
      CommentAuthorted
    • CommentTimeJul 22nd 2015
     
    ST, the £1.5 billion overspend of LCF is not over a 5 year period, but the figure for one year reached in 2020/21 which is in 5 years time.
    •  
      CommentAuthorted
    • CommentTimeJul 23rd 2015
     
    Data from OBR
      LCF.png
    •  
      CommentAuthorted
    • CommentTimeJul 23rd 2015
     
    In that table Feed-in tariffs, Renewables obligation and Contracts for difference are the components of the Levy Control Framework (LCF).
    • CommentAuthorTriassic
    • CommentTimeJul 23rd 2015
     
    Posted By: ringiUntil the planning system allows basic homes to be factory build, we will not get the cost down.

    They're called park homes, usually delivered in two halves.
    •  
      CommentAuthorSteamyTea
    • CommentTimeJul 23rd 2015
     
    Ted
    Not got time to look into it further at the moment, are those figures, year figures or accumulative?
   
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