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Solar install less then a month ago, battery between 0% and 4%

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Comments

  • That's a lot of trees.

    Your graph shows what you generated, not much.

    What was your total solar generation yesterday?

    It's difficult to see what you are unsure about?

    The panels don't work very well on your house by the looks of it, that's the main part of your problem.

    Your peak power was only about 1kW and most of the time it was way below that.

    Can you see that?

    overall I have checked the app and it shows the amount generated daily is between 4 and 6kW , that is for the week, I knew I would loose a bit because of the trees but we havd 4 surveys and they assured me that is still worth having and i will save some money on the energy.
    Yesterday the total solar generation was 4.56 kW.
    do you think the amount generated daily  is reasonable ?

  • badmemory
    badmemory Posts: 9,815 Forumite
    Ninth Anniversary 1,000 Posts Name Dropper
    badmemory said:
    One option, particularly for winter, is to find a tariff that gives you cheap electricity overnight and use that charge your battery.  The cheapest overnight tariffs seem to be reserved for those who have an EV but you may be able to find something else suitable.

    How do they know you have an EV & not charging a solar system.
    cannot do anything till i get the documents and certificate. I have been waiting just over a month now.

    I'm on 8 weeksd now when they said up to 6 weeks.  Someone I know got them in 2 days.

  • I checked through my Octopus app and the daily consumption is between 15.00 and 20.00 KkW, but it looks to me it is still the same after we installed the Solar panels, unless I am missing something.
    And the battery between 0% and 4% is not reassuring either , now it is at 6%.

    I know we do spend a bit in elecricity but my aim was to reduce the cost with solar panels , not paying for the solar install to make no difference at all with my electricity bills . I even got a bigger battery.

    See the pic attached of the Power Graph for yesterday.
    Your house seems to use over 500 W of power all the time, that would be over 12 kWh per day so the 15 to 20 kWh per day that the app tells you is not surprising.  But the peak output from your solar panels was under 1 kW.  That's perfectly possible on a day of solid cloud but very low if there was ever any direct sunlight on the panels.    
    Something is missing from this graph though.

    The house load doesn't appear.

    It should follow the red line and then be reduced but the yellow line.

    Your house load should be the import minus any solar generation. The battery is not going to show much as it is fully discharged.

    On the app there are lots of graphs available which will show different options.
    I know, I have it.

    Your house load is not showing on that graph, did you disable it?

    You can show as many or as few of the elements of you desire.

    I ask because you may have an issue with the house load not being measure correctly.

    Everything else looks OK, just the house load is missing.

    If there is a problem and you have a charged battery then it won't work properly unless it knows what the house load is.

    Not sure about the House load, where do I find it? and what it looks like as never seen before.
    I haven't disabled anything
  • I checked through my Octopus app and the daily consumption is between 15.00 and 20.00 KkW, but it looks to me it is still the same after we installed the Solar panels, unless I am missing something.
    And the battery between 0% and 4% is not reassuring either , now it is at 6%.

    I know we do spend a bit in elecricity but my aim was to reduce the cost with solar panels , not paying for the solar install to make no difference at all with my electricity bills . I even got a bigger battery.

    See the pic attached of the Power Graph for yesterday.
    Your house seems to use over 500 W of power all the time, that would be over 12 kWh per day so the 15 to 20 kWh per day that the app tells you is not surprising.  But the peak output from your solar panels was under 1 kW.  That's perfectly possible on a day of solid cloud but very low if there was ever any direct sunlight on the panels.    
    Something is missing from this graph though.

    The house load doesn't appear.

    It should follow the red line and then be reduced but the yellow line.

    Your house load should be the import minus any solar generation. The battery is not going to show much as it is fully discharged.

    On the app there are lots of graphs available which will show different options.
    I know, I have it.

    Your house load is not showing on that graph, did you disable it?

    You can show as many or as few of the elements of you desire.

    I ask because you may have an issue with the house load not being measure correctly.

    Everything else looks OK, just the house load is missing.

    If there is a problem and you have a charged battery then it won't work properly unless it knows what the house load is.

    Not sure about the House load, where do I find it? and what it looks like as never seen before.
    I haven't disabled anything
    The house load should be on the graph you posted earlier, it isn't
  • I have 13.5kWh house battery.  It is charged to 100% overnight at off peak cheap rate and then powers the house all of the following day during peak hours.  There is usually even a few kWhs left at the end of the day which are exported/sold back to the grid.

    You’re not really getting the best out of batteries if you don’t have very good solar production and/or are not taking advantage of a decent TOU tariff.  You also need to move as much other usage to within the off peak hours.  We run the dishwasher and washing machine overnight while the battery is charging.  This means less requirement on the battery during peak hours.

    You do however need to do the sums because a TOU tariff often comes with a higher peak rate cost than a standard variable or fixed tariff.  So if your daytime usage is high and your battery is not big enough, you may find your peak rate costs outweighs your off peak battery charging costs.

    I get your point, but till the company don't supply me with the certicate and documents I cannot apply for an Export, then import tariff, I have been waiting a month so far.
  • matt_drummer
    matt_drummer Posts: 2,013 Forumite
    1,000 Posts Second Anniversary Name Dropper
    edited 22 September 2024 at 7:39PM
    That's a lot of trees.

    Your graph shows what you generated, not much.

    What was your total solar generation yesterday?

    It's difficult to see what you are unsure about?

    The panels don't work very well on your house by the looks of it, that's the main part of your problem.

    Your peak power was only about 1kW and most of the time it was way below that.

    Can you see that?

    overall I have checked the app and it shows the amount generated daily is between 4 and 6kW , that is for the week, I knew I would loose a bit because of the trees but we havd 4 surveys and they assured me that is still worth having and i will save some money on the energy.
    Yesterday the total solar generation was 4.56 kW.
    do you think the amount generated daily  is reasonable ?

    I don't know where you live, but it wasn't sunny like that here yesterday.

    My 10 year old 4kWp system generated 13kWh yesterday.  My total generation from 13.6kWp of south west/ north east panels was 30kWh

    To put it into perspective, assuming the same conditions, 6.37kWp would have generated 21kWh on my roof and mine is not even south facing.

    Again, assuming similar conditions, your panels are generating about 20% of what they could have done.

    How much shading do you actually have?

    You say you get between 4 and 6kWh per day, that's dreadful.

    Can you see the output from each panel?

    Your Solaredge optimisers may give you this information.

    My Tigo optimisers tell me this but I did have to install extra equipment to get this information.
  • badmemory said:
    badmemory said:
    One option, particularly for winter, is to find a tariff that gives you cheap electricity overnight and use that charge your battery.  The cheapest overnight tariffs seem to be reserved for those who have an EV but you may be able to find something else suitable.

    How do they know you have an EV & not charging a solar system.
    cannot do anything till i get the documents and certificate. I have been waiting just over a month now.

    I'm on 8 weeksd now when they said up to 6 weeks.  Someone I know got them in 2 days.

    Wow, I have checked on the proposal and it states 1 week for the handover pack and up to 10 working days for the certificate . I was not even showed how to turn it off and on safely.
    It seems I am not the only one waiting.

  • That's a lot of trees.

    Your graph shows what you generated, not much.

    What was your total solar generation yesterday?

    It's difficult to see what you are unsure about?

    The panels don't work very well on your house by the looks of it, that's the main part of your problem.

    Your peak power was only about 1kW and most of the time it was way below that.

    Can you see that?

    overall I have checked the app and it shows the amount generated daily is between 4 and 6kW , that is for the week, I knew I would loose a bit because of the trees but we havd 4 surveys and they assured me that is still worth having and i will save some money on the energy.
    Yesterday the total solar generation was 4.56 kW.
    do you think the amount generated daily  is reasonable ?

    I don't know where you live, but it wasn't sunny like that here yesterday.

    My 10 year old 4kWp system generated 13kWh yesterday.  My total generation from 13.6kWp of south west/ north east panels was 30kWh
    I was recommended to fit on South facing roof , not east or west , as I have more sunlight on the garage . Well, too late now.
    That is a huge difference in kw.

  • That's a lot of trees.

    Your graph shows what you generated, not much.

    What was your total solar generation yesterday?

    It's difficult to see what you are unsure about?

    The panels don't work very well on your house by the looks of it, that's the main part of your problem.

    Your peak power was only about 1kW and most of the time it was way below that.

    Can you see that?

    overall I have checked the app and it shows the amount generated daily is between 4 and 6kW , that is for the week, I knew I would loose a bit because of the trees but we havd 4 surveys and they assured me that is still worth having and i will save some money on the energy.
    Yesterday the total solar generation was 4.56 kW.
    do you think the amount generated daily  is reasonable ?

    I don't know where you live, but it wasn't sunny like that here yesterday.

    My 10 year old 4kWp system generated 13kWh yesterday.  My total generation from 13.6kWp of south west/ north east panels was 30kWh
    I was recommended to fit on South facing roof , not east or west , as I have more sunlight on the garage . Well, too late now.
    That is a huge difference in kw.

    Yes, yours doesn't appear to work very well!

    Sounds like poor installers and a lack of research on your part.

    East/West is generally really good, not so much overall but a longer period of steady usable generation.
  • badmemory
    badmemory Posts: 9,815 Forumite
    Ninth Anniversary 1,000 Posts Name Dropper
    My panels are on both east & west, with most of south in shade.  Today has been the worst day ever with only 4 kw being generated, so all used by the house & obviously none to battery.  Thankfully no trees or I would be looking for a tree surgeon.  The ones that could have been a problem were blown down in a gale a few years ago.  So tall 4 neighbours couldn't get out of their front doors!
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