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  • FIRST POST
    • hollie.weimeraner
    • By hollie.weimeraner 28th Jun 18, 5:20 PM
    • 1,692Posts
    • 1,210Thanks
    hollie.weimeraner
    Spikes in production
    • #1
    • 28th Jun 18, 5:20 PM
    Spikes in production 28th Jun 18 at 5:20 PM
    Got home tonight and checked my production which is fine but Sunnyportal is showing regular spikes in production during the day (midday some over 4kwh).

    I'd post a screenshot if I knew how to

    Any idea or anyone else have this issue
    Last edited by hollie.weimeraner; 28-06-2018 at 5:30 PM.
    3.975 KW Solar PV. 15 Canadian Black 265w panels with Sunny Boy 3600tl Inverter. SSE facing with 30 degree pitch. In occasionally sunny Sheffield.
    Toyota Auris Hybrid Tourer
    Toyota Yaris Hybrid
Page 1
    • zeupater
    • By zeupater 30th Jun 18, 1:30 PM
    • 4,413 Posts
    • 5,882 Thanks
    zeupater
    • #2
    • 30th Jun 18, 1:30 PM
    • #2
    • 30th Jun 18, 1:30 PM
    Got home tonight and checked my production which is fine but Sunnyportal is showing regular spikes in production during the day (midday some over 4kwh).

    I'd post a screenshot if I knew how to

    Any idea or anyone else have this issue
    Originally posted by hollie.weimeraner
    Hi


    We occasionally (few times a year) get a spike in power recorded on our SMA inverter ... it all seems to be when the record interval is close to the beginning/end of a timeslice and either the results of none or two average power readings are calculated & written as one record, it doesn't effect the total metered energy from which the timeslice power is calculated so it's not worth worrying about unless it causes issues with tolerance checking within third party data interfaces ...



    HTH
    Z
    "We are what we repeatedly do, excellence then is not an act, but a habit. " ...... Aristotle
    • hollie.weimeraner
    • By hollie.weimeraner 4th Jul 18, 8:09 AM
    • 1,692 Posts
    • 1,210 Thanks
    hollie.weimeraner
    • #3
    • 4th Jul 18, 8:09 AM
    • #3
    • 4th Jul 18, 8:09 AM
    Turns out I may have a faulty inverter. SMA weren't too helpful on the phone insisting I buy a PUK code to access the inverter information that will provide the information. Contacted my installer who came out last night and confirmed it looks like some module in the inverter is failing intermittently and then coming back but he can't get access to the inverter until he has a PUK code to change the installer password which was never changed and should be the same as when it was supplied.
    3.975 KW Solar PV. 15 Canadian Black 265w panels with Sunny Boy 3600tl Inverter. SSE facing with 30 degree pitch. In occasionally sunny Sheffield.
    Toyota Auris Hybrid Tourer
    Toyota Yaris Hybrid
    • gefnew
    • By gefnew 4th Jul 18, 11:03 AM
    • 129 Posts
    • 138 Thanks
    gefnew
    • #4
    • 4th Jul 18, 11:03 AM
    • #4
    • 4th Jul 18, 11:03 AM
    Hi
    Are you trying to access through sunny explorer to get readings, or trying to get into inverter itself. If so to get into the inverter you will need a grid guard code that your repairer will need to get into the full control of the inverter.
    regards
    gefnew
    • hollie.weimeraner
    • By hollie.weimeraner 4th Jul 18, 11:14 AM
    • 1,692 Posts
    • 1,210 Thanks
    hollie.weimeraner
    • #5
    • 4th Jul 18, 11:14 AM
    • #5
    • 4th Jul 18, 11:14 AM
    Hi
    Are you trying to access through sunny explorer to get readings, or trying to get into inverter itself. If so to get into the inverter you will need a grid guard code that your repairer will need to get into the full control of the inverter.
    regards
    gefnew
    Originally posted by gefnew
    It's now up to the installer as he just wants to access any fault codes it may have detected.

    He did say that SMA try to force the grid guard codes on them but that enables them to change settings. We had quite a long conversation about SMA trying to get installers to use German settings at times on the UK grid system as well.
    Last edited by hollie.weimeraner; 04-07-2018 at 11:18 AM.
    3.975 KW Solar PV. 15 Canadian Black 265w panels with Sunny Boy 3600tl Inverter. SSE facing with 30 degree pitch. In occasionally sunny Sheffield.
    Toyota Auris Hybrid Tourer
    Toyota Yaris Hybrid
    • legoman62
    • By legoman62 4th Jul 18, 12:27 PM
    • 2,553 Posts
    • 13,241 Thanks
    legoman62
    • #6
    • 4th Jul 18, 12:27 PM
    • #6
    • 4th Jul 18, 12:27 PM
    It's now up to the installer as he just wants to access any fault codes it may have detected.

    He did say that SMA try to force the grid guard codes on them but that enables them to change settings. We had quite a long conversation about SMA trying to get installers to use German settings at times on the UK grid system as well.
    Originally posted by hollie.weimeraner
    Do you have Sunny Explorer? I can access event/errors through it.
    E Coast. 16 Sanyo Hit 250s.4kWp SMA 3.8kWp inverter. SW roof. 28 pitch.
    Minimal shade. Nov 2011 install. N.E Lincs Coast. Hybrid car
    • hollie.weimeraner
    • By hollie.weimeraner 4th Jul 18, 12:43 PM
    • 1,692 Posts
    • 1,210 Thanks
    hollie.weimeraner
    • #7
    • 4th Jul 18, 12:43 PM
    • #7
    • 4th Jul 18, 12:43 PM
    Do you have Sunny Explorer? I can access event/errors through it.
    Originally posted by legoman62
    I do and the installer has as well. The issue is that the password (1111) doesn't work. SMA tell me someone has changed it but my installer insists they don't change them either. I certainly haven't changed it.

    I can log into the user interface but not the installer inetrface
    3.975 KW Solar PV. 15 Canadian Black 265w panels with Sunny Boy 3600tl Inverter. SSE facing with 30 degree pitch. In occasionally sunny Sheffield.
    Toyota Auris Hybrid Tourer
    Toyota Yaris Hybrid
    • legoman62
    • By legoman62 4th Jul 18, 12:56 PM
    • 2,553 Posts
    • 13,241 Thanks
    legoman62
    • #8
    • 4th Jul 18, 12:56 PM
    • #8
    • 4th Jul 18, 12:56 PM
    I do and the installer has as well. The issue is that the password (1111) doesn't work. SMA tell me someone has changed it but my installer insists they don't change them either. I certainly haven't changed it.

    I can log into the user interface but not the installer inetrface
    Originally posted by hollie.weimeraner
    I can access errors in user mode as well as installer!
    E Coast. 16 Sanyo Hit 250s.4kWp SMA 3.8kWp inverter. SW roof. 28 pitch.
    Minimal shade. Nov 2011 install. N.E Lincs Coast. Hybrid car
    • zeupater
    • By zeupater 4th Jul 18, 1:05 PM
    • 4,413 Posts
    • 5,882 Thanks
    zeupater
    • #9
    • 4th Jul 18, 1:05 PM
    • #9
    • 4th Jul 18, 1:05 PM
    Turns out I may have a faulty inverter. SMA weren't too helpful on the phone insisting I buy a PUK code to access the inverter information that will provide the information. Contacted my installer who came out last night and confirmed it looks like some module in the inverter is failing intermittently and then coming back but he can't get access to the inverter until he has a PUK code to change the installer password which was never changed and should be the same as when it was supplied.
    Originally posted by hollie.weimeraner
    Hi

    How many spikes are you seeing and do the time-slices that you see spikes in cause anomalies in the running total? ... it's easy to check at the moment with smooth generation! ...

    On thing to try would be to wait for darkness (no generation) and reset (correct) the clock via Explorer to see if it is a time-slice recording issue ...

    HTH
    Z
    "We are what we repeatedly do, excellence then is not an act, but a habit. " ...... Aristotle
    • hollie.weimeraner
    • By hollie.weimeraner 4th Jul 18, 7:49 PM
    • 1,692 Posts
    • 1,210 Thanks
    hollie.weimeraner
    Hi

    How many spikes are you seeing and do the time-slices that you see spikes in cause anomalies in the running total? ... it's easy to check at the moment with smooth generation! ...

    On thing to try would be to wait for darkness (no generation) and reset (correct) the clock via Explorer to see if it is a time-slice recording issue ...

    HTH
    Z
    Originally posted by zeupater
    https://imgur.com/WkBx1q1

    Image sorted
    3.975 KW Solar PV. 15 Canadian Black 265w panels with Sunny Boy 3600tl Inverter. SSE facing with 30 degree pitch. In occasionally sunny Sheffield.
    Toyota Auris Hybrid Tourer
    Toyota Yaris Hybrid
    • zeupater
    • By zeupater 4th Jul 18, 8:48 PM
    • 4,413 Posts
    • 5,882 Thanks
    zeupater
    Originally posted by hollie.weimeraner
    Hi

    Looks like the time resolution on sunny portal is in pretty large slices (much larger than 5minutes) but considering that the spikes seem to fit the troughs it does look like a data calculation or logging timing error rather than an inverter operating problem, so it's just a case of tracking down the cause ...

    - Do you see the same spikes on the inverter display screen or in SunnyExplorer in higher time-slice resolution?, if not then it could be a communications or interface issue between the inverter & the information portal ...

    - How is the inverter communicating with SunnyPortal? ... Webbox? .... if so have you checked the time settings on this unit against the inverter itself to see if there's a mismatch? ... Have there been any changes - Webbox reset?, router position?, cables?

    Just some initial ideas!

    HTH
    Z
    "We are what we repeatedly do, excellence then is not an act, but a habit. " ...... Aristotle
    • hollie.weimeraner
    • By hollie.weimeraner 4th Jul 18, 9:07 PM
    • 1,692 Posts
    • 1,210 Thanks
    hollie.weimeraner
    There have been no changes in anything. The inverter doesn't show the spikes and the spikes aren't every day. Today I have a perfect bell with no spikes/troughs.
    I'll leave it to my installer initially I think
    3.975 KW Solar PV. 15 Canadian Black 265w panels with Sunny Boy 3600tl Inverter. SSE facing with 30 degree pitch. In occasionally sunny Sheffield.
    Toyota Auris Hybrid Tourer
    Toyota Yaris Hybrid
    • zeupater
    • By zeupater 4th Jul 18, 10:45 PM
    • 4,413 Posts
    • 5,882 Thanks
    zeupater
    There have been no changes in anything. The inverter doesn't show the spikes and the spikes aren't every day. Today I have a perfect bell with no spikes/troughs.
    I'll leave it to my installer initially I think
    Originally posted by hollie.weimeraner
    Hi

    If the inverter doesn't show spikes than it's probably nothing to do with the inverter ...

    - What's in place between the inverter and Sunny Portal ... is it a SunnyWebbox or is there a comms card in the inverter? ...

    - Have you ever looked at correcting the time in the inverter & SunnyWebbox using the functionality in SunnyExplorer .... I've never looked, but can you also do this remotely through SunnyPortal? - It's worth having a look ....

    - Can you also check if the same spikes are visible in Explorer as it should show 5 minute recorded generation time-slices ... this data will come directly from the inverter and therefore confirm that there's an interface or interface timing issue somewhere in the downstream comms ...


    HTH
    Z
    "We are what we repeatedly do, excellence then is not an act, but a habit. " ...... Aristotle
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