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device to use unused soler pv export power to run heater or hot water

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energysavingexp
energysavingexp Posts: 432 Forumite
edited 19 March 2012 at 3:01PM in Green & ethical MoneySaving
if you have solar pv and want to use unused power that would be exported, to heat your hotwater or heater ect.
but dont want to use imported leccy when you are using more than you are producing ie.
say you are exporting 1.5kw- 4kw and want to use it say running a heater when you are out
light switch or current switch will turn on your heater but if you turn on say a kettle you will now be using imported leccy (not good)
this system turns off the heater if you are using more leccy than your production so if its a bright day your heater turns on untill a cloud comes over or you turn on a kettle or tumble dryer
then when kettle has boiled the heater turns back on again
you can build the device for around £15 if you are good at diy
if you want to know more about it message me and ill try and explain better

update:

if you have your leccy meter a long way from your heater and if you dont want to run a wire to the controller this can be done with a transmitter and reciever for an extra £12ish
«13456720

Comments

  • Hi, just wondering why you don't want this discussed publicly. There will be a lot of interest in something you can build for that price, and you can rest assured the community here will find ways round problems, or even come up with ideas to make the thing easier or cheaper or more reliable..
    You can reply by PM if you prefer.
  • hi kernel

    if you take a look at my past posts i dont mind discussed publicly
    but there a few on here that like to think they are always right
    and dont like other people having some thing they cannot have.
    if i can help anyone for free i will,
    this device is not for everyone only people who have solar pv and are good at diy its not easy to explain thats why i sayed message me so i can tell them where to buy the parts and how to build it
    if it can save you money for £15 ish then if they are intrested then ask and ill do my best to help
    ive only put it on here after recieving a pm from a member asking me about it and he called me today after buying the parts from a local shop and said i should tell everyone and share the info.
    but like i say its not for everyone.
    i'll share any money saving ideas i have ive even got a system in place to save £500 of my water bill that has been running now for last 4 years
  • dtran
    dtran Posts: 3 Newbie
    if you have solar pv and want to use unused power that would be exported, to heat your hotwater or heater ect.
    but dont want to use imported leccy when you are using more than you are producing ie.
    say you are exporting 1.5kw- 4kw and want to use it say running a heater when you are out
    light switch or current switch will turn on your heater but if you turn on say a kettle you will now be using imported leccy (not good)
    this system turns off the heater if you are using more leccy than your production so if its a bright day your heater turns on untill a cloud comes over or you turn on a kettle or tumble dryer
    then when kettle has boiled the heater turns back on again
    you can build the device for around £15 if you are good at diy
    if you want to know more about it message me and ill try and explain better
    Hi, can you provide me with details please?

    Thanks dtran.
  • dtran wrote: »
    Hi, can you provide me with details please?

    Thanks dtran.

    will do
    ive sent them to you ok
  • dave_ave
    dave_ave Posts: 212 Forumite
    Part of the Furniture Combo Breaker
    Can I have the details too please?
  • dave_ave wrote: »
    Can I have the details too please?


    on its way to you now
  • mickyduck
    mickyduck Posts: 334 Forumite
    can I have details too please
    Kind Regards
    Mick
    3.995kWP SSW facing. Commissioned 7 July 2011. 24 degree pitch + Solar Immersion installed May 2013, after two Solar Immersion lasting just over the guarantee period replaced with Solic 200... no problems since
  • mickyduck wrote: »
    can I have details too please
    Kind Regards
    Mick
    yep sure can
  • Ferdy147
    Ferdy147 Posts: 130 Forumite
    Can i have details to please?

    ferdy147uk@yahoo.co.uk

    Thanks,
  • Brian99_2
    Brian99_2 Posts: 155 Forumite
    Me too please. You have plenty of interest !!
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