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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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    • CommentAuthorscrimper
    • CommentTimeJul 12th 2013
     
    At last ... just had the press notice ...

    Payments per Kwh

    7.3p Air Source
    12.2p Biomass
    18.8p Ground Source
    (at least) 19.2p Solar Thermal

    Was just about to press the button on an ASHP installation, but this announcement will make me look one last time at GSHP as the payments might be pretty chunky over 7 years ...

    Any other thoughts on this anyone?
    • CommentAuthormark_s
    • CommentTimeJul 12th 2013
     
    Linky?

    How are they going to measure solar thermal?
    • CommentAuthorscrimper
    • CommentTimeJul 12th 2013
     
  1.  
    the Coalition is 110 percent committed to boosting schooling in basic maths
  2.  
    <blockquote><cite>Posted By: mark_s</cite>Linky?

    How are they going to measure solar thermal?</blockquote>

    "In most cases, payments will be made based on estimated heat demand of the property. "

    Presumably number of bedrooms/average water consumption.
    •  
      CommentAuthorfostertom
    • CommentTimeJul 12th 2013
     
    You have to submit to Green Deal assessment, so presumably that's how
  3.  
    How will that work for a new build?
  4.  
    Anyone fancy a stab at what a 3 bed home might get per year RHI for a solar thermal install
  5.  
    3000 kWh average HW usage ??
    60% supplied by ST
    0.6 x 3000 x 19.2p = £345.60 pa x 7 years = £2419.20 RHI over term
    •  
      CommentAuthorSteamyTea
    • CommentTimeJul 12th 2013
     
    Posted By: jamesingram£2419.20 RHI over term
    Then take away what the interest on the capital sum would have earned you, I am pretty sure that we will not always have savings rates that are effectively below zero
    • CommentAuthorSimon Still
    • CommentTimeJul 12th 2013 edited
     
    Assume that it's additional borrowing on your mortgage at 5% (you can get that as a long term rate at the moment).

    Present Value is just under £2000 - ie if you can install for under £2k you're quids in. Plus you've had free hot water.
    •  
      CommentAuthorSteamyTea
    • CommentTimeJul 12th 2013
     
    1500 kWh will cost £270 at most, third that on gas/HP, so can factor that in.
    I think 19.2p/kWh for ST is pretty generous.
    • CommentAuthorscrimper
    • CommentTimeJul 12th 2013
     
    Yes Simon ... agreed, that 110% line truly shocking ...
    • CommentAuthorSprocket
    • CommentTimeJul 12th 2013
     
    WooHoo!
    But something tells me I should not open the champagne just yet.
    I shall await more small print.
    • CommentAuthorchippyclaus
    • CommentTimeJul 12th 2013 edited
     
    Sprocket: But something tells me I should not open the champagne just yet.
    I shall await more small print.

    Quite right, the government still hasn't given a definite start date as yet, maybe Spring 2014.
    At least some clear payment figures, apart from S.T. are a start.
    • CommentAuthorJeff B
    • CommentTimeJul 13th 2013
     
    When the precise kick-off is announced will we see an almighty stampede of applications and last-minute installations of qualifying equipment a la the crazy scramble when HM Gov announced the reduction in the FIT tariffs?

    Wouldn’t it be sensible for existing owners of biomass boilers, ST etc. to be invited to get their applications in say 6 months before the kick off date in order to have a smooth take-up period? It would surely ease the workload of those who will have to be dealing with the applications.
  6.  
    Are these numbers up or down?

    Ferdinand
    • CommentAuthorSeret
    • CommentTimeJul 13th 2013
     
    Posted By: Jeff B
    Wouldn’t it be sensible


    Yes, but what fun would that be? This is the government we're talking about.

    Posted By: ferdinand2000
    Are these numbers up or down?


    Well given that many (myself included) thought we would never actually get a domestic RHI, I guess you could say up!
    • CommentAuthorCWatters
    • CommentTimeJul 13th 2013
     
    I notice it says you will need a Green Deal Assessment but will you be forced to use Green Deal to fund it?
    • CommentAuthorMikel
    • CommentTimeJul 13th 2013 edited
     
    I'm still going through all the documents. However, it does look like loft insulation of 250mm and cavity wall insulation are mandatory requirements. I'm not sure whether any other green ticks will also be required.

    I don't think there is any requirement to use the Green Deal to fund RHI (or generally).
    •  
      CommentAuthorSteamyTea
    • CommentTimeJul 13th 2013 edited
     
    Posted By: Simon Stillthe Coalition is 110 percent committed to boosting schooling in basic maths
    Easy enough to do, instead of having 10 people working on it they will have 11, which is probably about the total amount of people that can count in the government.:wink:

    Just off to measure my loft insulation, 250mm is a reasonable amount.
    •  
      CommentAuthorted
    • CommentTimeJul 13th 2013
     
    Posted By: MikelI'm still going through all the documents. However, it does look like loft insulation of 250mm and cavity wall insulation are mandatory requirements. I'm not sure whether any other green ticks will also be required.

    I don't think there is any requirement to use the Green Deal to fund RHI (or generally).


    I haven't read through this latest raft of docs but the previous stance from DECC was that ALL GDA green tick measures would have to be implemented for a property to be eligible for RHI.
    •  
      CommentAuthorSteamyTea
    • CommentTimeJul 13th 2013
     
    I was told by an PV installer that roofs now have to have structural calculations done to satisfy Building Control. Anyone else heard of this?
    It will be another cost.
    • CommentAuthorJeff B
    • CommentTimeJul 13th 2013
     
    Posted By: SteamyTeaI was told by an PV installer that roofs now have to have structural calculations done to satisfy Building Control. Anyone else heard of this?
    It will be another cost.


    ST - how does this impact on qualification requirements for RHI?
  7.  
    Perhap's solar thermal panels may also require load calcs. ?
    Re. PV, I believe MCS has always required designer/installers to asses the suitable of the roof structure to take the additional load of PV , some chose to do this via calcs. for each job, others have been a bit more vague about it , using a general, non specific , if it's ok on one standard type roof , it'll be ok on over similar types.

    By the way , what so wrong about 110% , it's just 11/10 :confused::tongue:
    •  
      CommentAuthorSteamyTea
    • CommentTimeJul 13th 2013
     
    I was lead to believe it is a new condition for the MCS, more a case of an extra cost as a Structural Engineer has to sign it off.
    •  
      CommentAuthorfostertom
    • CommentTimeJul 13th 2013
     
    If 100% committment is 'completely and entirely committed', then just what does
    Posted By: Simon Stillthe Coalition is 110 percent committed to ...
    mean? It's meaningless; worse, brainless.
    • CommentAuthorjms452
    • CommentTimeJul 13th 2013 edited
     
    Posted By: SteamyTeaI was told by an PV installer that roofs now have to have structural calculations done to satisfy Building Control. Anyone else heard of this?


    I thought that this was always the case but that there was a get out clause if the PV only added 15% to the weight of the roof covering.
    •  
      CommentAuthorSteamyTea
    • CommentTimeJul 13th 2013
     
    Possibly the get out that has changed. Shall have to as my clever mate about it Monday.
    • CommentAuthorsune
    • CommentTimeJul 13th 2013
     
    The Green Deal thing means that New Build is probably out seeing as I think you need a finished building for the assessment (probably with an electricity supplier - otherwise how could you take up the private finance loan offer?).
    Unless of course you plan on finishing the building with no heating or hot water system (or some v cheap temporary system that you plan to take out) and then installing your intended system later which would be odd and wasteful and inefficient. We are seeking clarification on this - it may be that there is some workaround.

    You would not have to go ahead with the Green Deal measures. You could optionally access funding for some or all of the RHI funded measures you are considering. You would have to meet the min loft and wall insulation criteria.


    For biomass @12.2p the figures are definitely up as they were suggesting a rate of 5.3 - 8.4 p /kWh in the last consultation.

    Up for ground source @ 18.8p, it was 12.5 - 17.3 in the consultation.

    In the lower middle for air source @ 7.3p, it was 6.9 - 11.5 in the consultation.

    Up for solar thermal @ 19.2 - it was 17.3 in the consultation.


    And yes we have no date yet and it was put off 3 yrs running, I'm not holding my breath just yet. At least they have been bold enough to set a rate!

    : )
   
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