Some users experience difficulties using one of the Over-the-air (OTA) methods for firmware upgrade. We propose a...
We currently ship minimum once per week.
Non-Norwegian customers are invited to order from our store on Lectronz.com, a third party sales platform that handles national VAT to EU countries, using the EU IOSS system (for order values up to 150 EUR ex VAT).
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Latest posts
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Updating device over USB cable, simplified methodRead more -
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Kamstrup Omnipower meters in Sweden: Which configuration should you choose?Read moreSwedish grid companies are moving from "HAN-NVE" configuration to "P1" configuration. Some grid companies allow their...
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L2 current not available!?Read moreSome users have noticed that the device is no longer reporting current on phase L2.
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Swedish customers and PostNord as "Tullombud"Read moreSwedish customers receiving our shipments via Postnord are mislead to think they have to pay customs fee and VAT....
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One-click upgrade is not workingRead moreOne-click firmware upgrade works just fine for most users - but what to do if it fails?
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Correcting stored values by editing the configuration fileRead moreHow to correct corrupted values in the graphs
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I have a Kaifa/Nuri meter, and my new Pow-U does not work!?Read moreOK... so we made a (minor) bummer on the latest design update of Pow-U. The fix is maybe not elegant, but it is easy!
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"I ordered a device on Lectronz, and paid VAT. But now I received a customs + VAT claim!?"Read moreSome of our EU customers that buy on Lectronz receive customs claims. Here is why - and what to do....
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Pow-U and power savingRead moreIt took some efforts both in hardware and firmware to make an ESP32 run from HAN-port power only - and here are the...
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Vattenfall - opening the HAN port
Update 24th March 2023: Vattenfall seems to have implemented "My page"/"Min side" where customers can order HAN port opening, and where you also can check whether the HAN port is open. This posting on the discussion forum of byggahus.se indicates that it could be useful to check status if an assumed open port is actually open.
Link to the activation page: https://www.vattenfalleldistribution.se/mina-sidor/installningar/anslutningsport/
Anders informed us 26th Sep -22 that Swedish company Vattenfall has a long backlog (2 weeks?) of unanswered email. He had to phone them to get his HAN port activated.
So it is quicker to order activation by phone, but they unfortunately also have long a waiting time on the phone lines (apparently 30-60 minutes is not uncommon),
To help others with the same errand avoid peak hours, Anders recommends consulting this page: https://www.vattenfall.se/kundservice
On the bottom of the page you'll find the relevant phone numbers and a graph indicating the load on their phone system:
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