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Clint2

5 posts

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#296148 25-May-2022 11:23
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We have a second dwelling on our property that we need to record power usage for power bill calculations . We currently have a simple digital power consumption meter however we have now switched to an Electric Kiwi Plan that has 4 different time zone \ Tariff rates .


Does anyone have a good cost effective energy logging solution that would allow me to record power usage per month for each of the daily time zones?


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nickb800
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  #2918340 25-May-2022 13:49
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Shelly EM3 records usage on three circuits/phases at 10min intervals and records into a CSV file, which can be downloaded periodically. Just a bit of playing around in Excel to translate that to the different tariff time zones. You could compare total usage from the Shelly with the simple digital meter for a cross-check. 

 

Alternatively, take an unweighted average of your EK tariffs and charge all usage at that rate (with the tenant's agreement). 


Clint2

5 posts

Wannabe Geek


  #2918423 25-May-2022 15:11
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thanks so much , the em3 sounds perfect. You don’t happen to know who sells them in NZ do you ? I’m not having much luck

nickb800
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  #2918425 25-May-2022 15:13
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I've always bought them from the manufacturer's website, may only take 2-3 weeks to arrive from Europe. 




Clint2

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Wannabe Geek


  #2918426 25-May-2022 15:15
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Cool , thanks will look into it

Clint2

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Wannabe Geek


  #2920533 30-May-2022 17:05
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Also I can't seem to find any  any certification for NZ use for the EM3 , is there anything available?


ANglEAUT
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  #2920654 30-May-2022 22:34
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Clint2: ... We currently have a simple digital power consumption meter however we have now switched to an Electric Kiwi Plan that has 4 different time zone \ Tariff rates ...

 

Can the 2nd power meter be activated as a new meter with EK?





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Clint2

5 posts

Wannabe Geek


  #2920828 31-May-2022 11:38
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No, unfortunately we only have one power meter at the shed with power feeds going to granny flat , main house and garage from there. 




ANglEAUT
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  #2923731 7-Jun-2022 20:55
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Did you find a solution eventually?

 

 





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