Debate House Prices


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The Swanson Effect

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Comments

  • antrobus
    antrobus Posts: 17,386 Forumite
    Martyn1981 wrote: »
    ...Inverter lifetimes are hard to predict. ....

    How much does an inverter cost for the typical consumer installation?
  • globalds
    globalds Posts: 9,431 Forumite
    I like this .http://www.bbc.co.uk/news/uk-32054802

    Water source heat pumps ..All those house on the flood planes that no one wants ..suddenly become cheap as chips to dry out after each years winter baptism.
  • Generali
    Generali Posts: 36,411 Forumite
    10,000 Posts Combo Breaker
    antrobus wrote: »
    How much does an inverter cost for the typical consumer installation?

    A grand give or take.
  • Thrugelmir
    Thrugelmir Posts: 89,546 Forumite
    Part of the Furniture 10,000 Posts Name Dropper Photogenic
    michaels wrote: »
    Interesting piece on the bbc yesterday saying the national grid was building a large interconnector to a norwegian hydro plant because the economics worked really well in conjunction with variable renewables.

    The idea of a cable to Iceland was also mooted a while back.
  • globalds
    globalds Posts: 9,431 Forumite
    Thrugelmir wrote: »
    The idea of a cable to Iceland was also mooted a while back.

    I am sure they sent it a few years ago.
    It said

    " Give us our money back "

    But we never got a reply.
  • ging84
    ging84 Posts: 912 Forumite
    Part of the Furniture Combo Breaker
    Joe Swanson latest?cb=20100326012234
  • Martyn1981
    Martyn1981 Posts: 15,120 Forumite
    Part of the Furniture 10,000 Posts Name Dropper Photogenic
    edited 28 March 2015 am31 7:06AM
    antrobus wrote: »
    How much does an inverter cost for the typical consumer installation?

    Hiya. It will vary quite a bit depending on make.

    Taking 'typical' to mean an install of around 3 to 4kWp, then a higher end make such as the German SMA range will be around £800. The opposite end, such as the Chinese manufacturer Samil, closer to £500.

    There will also be lots of very cheap, and perhaps slightly dodgy models, but for a FiT (subsidy) eligible install* then only certified approved kit can be used. So I chose Samil as the lower end as they've quickly earned a pretty good reputation, and have efficiencies equal to or even better than the SMA's.

    Apologies for labouring this point, but the SMA's have exceptionally good shade management software built in, so if a property has some 'hard shade' such as a chimney, next doors roof etc, then that would explain/justify the choice of a more expensive inverter.

    *All installs, be they MCS/FiT or DIY have to be notified to the DNO (district network operator) so that they are aware of all SSEG's (small scale electricity generators) in their region. The notification has to be signed off by a suitably qualified electrician and the inverters (plus all other kit) certified for UK use.

    Mart.
    Mart. Cardiff. 8.72 kWp PV systems (2.12 SSW 4.6 ESE & 2.0 WNW). 20kWh battery storage. Two A2A units for cleaner heating. Two BEV's for cleaner driving.

    For general PV advice please see the PV FAQ thread on the Green & Ethical Board.
  • Martyn1981
    Martyn1981 Posts: 15,120 Forumite
    Part of the Furniture 10,000 Posts Name Dropper Photogenic
    antrobus wrote: »
    How much does an inverter cost for the typical consumer installation?

    You probably didn't want this much info, but since I mentioned one of my inverters having a 12yr warranty as standard, I should probably give a little info on that too.

    That is a SolarEdge model, and is a relatively 'dumb' inverter, as the clever stuff is done by PO's (power optimisers) one on each panel. These systems are used in heavily shaded situations, so that the poor performance of one panel doesn't pull down the system as a whole, by acting as a brake. Each PO adds about £30 to the cost, but the inverter is a little cheaper than a top range model, so around £600. But this allows for maximum efficiency of each and every panel, and individual realtime monitoring of each panel. This system also means that panels don't have to match, so different orientations, pitches and panel types can all be run off the same inverter.

    My heavily shaded WNW system is actually performing slightly better than predictions based on no shading.

    Mart.
    Mart. Cardiff. 8.72 kWp PV systems (2.12 SSW 4.6 ESE & 2.0 WNW). 20kWh battery storage. Two A2A units for cleaner heating. Two BEV's for cleaner driving.

    For general PV advice please see the PV FAQ thread on the Green & Ethical Board.
  • antrobus
    antrobus Posts: 17,386 Forumite
    Thrugelmir wrote: »
    The idea of a cable to Iceland was also mooted a while back.

    I believe it is still being 'mooted'. I know that the National Grid have even gone to the trouble of registering 'Ice Link' as a trademark.
  • antrobus
    antrobus Posts: 17,386 Forumite
    Martyn1981 wrote: »
    You probably didn't want this much info, ..

    No, that's fine. I was interested in getting some sense of the £s involved, as in about £600-£800 once every 12 years.
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