Multi tariff energy logging at meter board

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Clint2

5 posts

Wannabe Geek

#296148 25-May-2022 11:23

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?

nickb800

2716 posts

Uber Geek

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#2918340 25-May-2022 13:49

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

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

2716 posts

Uber Geek

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#2918425 25-May-2022 15:13

I've always bought them from the manufacturer's website, may only take 2-3 weeks to arrive from Europe.

Clint2

5 posts

Wannabe Geek

#2918426 25-May-2022 15:15

Cool , thanks will look into it

Clint2

5 posts

Wannabe Geek

#2920533 30-May-2022 17:05

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

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

No, unfortunately we only have one power meter at the shed with power feeds going to granny flat , main house and garage from there.

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ANglEAUT

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#2923731 7-Jun-2022 20:55

Did you find a solution eventually?

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