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TimSoethout / goodwe-sems-home-assistant

Sensor for Home Assistant pulling data from the GoodWe SEMS API for solar panel production metrics.
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When sun goes down PV sensor does not go to 0 Watt #24

Closed lukaskrepel closed 3 years ago

lukaskrepel commented 3 years ago

Hi, thanks for the sensor!

When the sun goes down the PV power sensor does not go to 0 Watt, but instead hangs on the last measured value.

spockz commented 3 years ago

I have this issue as well on the SEMS portal. I assume it is a bug on the api side where it keeps using the latest reported value in case of a missed shutdown message from the PV. (The last part is speculation.)

TimSoethout commented 3 years ago

We could divert from the API output by overwrite the PV power sensor to 0 when the inverter is off (found in another attribute). However, I don't know if this is correct in all cases, e.g. if you have batteries?

On Fri, 12 Feb 2021 at 23:39, Alessandro Vermeulen notifications@github.com wrote:

I have this issue as well on the SEMS portal. I assume it is a bug on the api side where it keeps using the latest reported value in case of a missed shutdown message from the PV. (The last part is speculation.)

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lukaskrepel commented 3 years ago

Sounds like a good solution for my case! I don't have a battery... I would assume the output would be zero for PV even with batteries, but I am not familiar with the SEMS portal API.

lukaskrepel commented 3 years ago

By the way: My current solution is to manually restart HA when the sun sets. The sensor goes to zero Watts. So I think the API simply doesn't respond when there's no power?

TimSoethout commented 3 years ago

In version 3.1.0 I added a check to report 0W when status is not 1. :)