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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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    Just had flyer from a turbine installation company listing annual servicing costs for a range of turbines, all in the 10 to 20 kWh spectrum. costs range from £220 up to £500 and the higher costs are not necessarily higher for the bigger turbines plus travelling and any parts except grease. if you have a turbine with an annual bill at the top end over the expected 20 year lifetime that's ten thousand quid off the income before they fix any thing, and you can bet something is going to go wrong over the lifetime of almost any machine. As we have a 10 kWh turbine and a 10 kWh solar PV installation it will be interesting to see how the running costs of the two compare over life time of the two. By the way just noticed that in fact one turbine is only 5 kWh and still costs nearly £400. Seems high?
    • CommentAuthorEd Davies
    • CommentTimeAug 20th 2013
    kW (not kWh)

    Having things flailing around in the breeze is bound to be expensive. PV is good that way. Is it difficult to do the service yourself?
    • CommentTimeAug 20th 2013 edited
    I seen you up on top of those ones beside the A30 ST - is that why they always seem to be static?
    I would guess doing your own servicing could lead to warranty issues, and TBH climbing 18 meters up a pole is not for me......................
    • CommentTimeAug 21st 2013
    I like climbing, but think your 3rd party public liability would be affected if I went up there with a screwdriver and a pair of molegrips.

    It may be worth comparing the service costs against energy produced, the annual kWh rather than the size of turbine. or the cost of the turbine.

    How is the new PV working?
    Hi ST, quite well (I think!) 10 kWh installed mid April and up to today 7,720 kWh on the meter. I have to say Solar PV is much more a fit and forget system just quietly ticks away whereas whenever the turbine is not turning I end up looking at the wind speed and generally fussing stupid really!
    • CommentTimeAug 21st 2013 edited
    Have you gone any further with trying to establish exactly how much home grown you are using compared to exporting?
    And how are the new lids working on the water tanks? Make much difference.
    • CommentAuthorEd Davies
    • CommentTimeAug 21st 2013
    Posted By: candlemaker: “10 kWh installed mid April”
    10 kW.
    Since insulating the wax tanks to a much better level, boiler on time vastly reduced around 20% and a corresponding drop in fuel consumption. The problem is still as you have spotted a lot of the power we are generating is still not used by us, instead of just heating the tanks with water heated by a 20 year old kerosene boiler we need to get some immersion heaters into the system the trouble is as you know ours is home built low pressure system and we keep putting off hacking it about, but I guess we need to get on with it.
    • CommentTimeAug 21st 2013
    20% savings is pretty good.
    Can you get an electric inline heater to replace the kerosene burner. Not ideal as you still have that long pipe run, then when you have a bit more time you can plumb it in properly.
    Though that does depend on how easy it is to wire in.

    Been monitoring the import/export at a community centre as they have the same problem. Found a way to actually find out what is going where which is useful.
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