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safepay / sensor.fronius

A Fronius Sensor for Home Assistant
MIT License
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REQUEST: daily_grid_usage and daily_house_load #21

Closed Tovrin closed 3 years ago

Tovrin commented 4 years ago

This is more of a request. Not sure if this is possible or not, but could we get daily_grid_usage and daily_house_load so easy comparison could be made with daily_energy?

nilrog commented 4 years ago

None of the Fronius API endpoints provides that data directly.

If you have a smartmeter you can get the accumulated energy for sold/consumed energy from grid. So you can use utility meter sensors in HA to calculate the daily energy sold/consumed with those as input. And with the daily sold/consumed sensors and the produced daily energy sensor you can calculate daily house energy usage with a template sensor.

I am currently not using exactly that setup in my solarpanel-package for HA. But you can look at it and get some inspiration for what you can do. I am soon going to update that file with the setup I described above. https://gist.github.com/nilrog/86e9ac714052e993ab5df78bcd782573

That said, there could be some issues with the currently released version of this integration and utility meter sensors. It may sometimes return 0 for a sensor and if that sensor is used as input to a utility meter it will calculate wrong. But I am currently testing some changes to this integration that solves those problems. My only worry is if it breaks something for those who allows the inverter to shutdown during night. I will try to push those changes to my fork this weekend so other can grab it and test before I ask for it to be merged into this one. We had a discussion around this in the HA forum a couple of days ago: https://community.home-assistant.io/t/fronius-inverter-integration/19274/243

Tovrin commented 4 years ago

Thanks for the prompt reply, nilrog.

Your integration is very reliable in that respect to graphing the period grid_usage and house_load For daily reporting, I'm using kalkih's "mini_graph_card" plugin with an aggregate function of max which allows me to do a pretty accurate bar graph of daily_energy. I'm trying to do the same with a daily grid_usage and house_load

I'm a bit of novice when it comes to HA and some of the discussions you linked to went a bit over my head. I'm not quite to the programming level yet ( ... but I'll get there eventually).

I'll be interested to see what you come up with.

Beer money headed your way. :)

Michael

nilrog commented 4 years ago

To be correct it is @safepay who deserves the credit for this integration and beer. I am just trying to help out.

Yes, doing stuff in HA can be a bit overwhelming. I remember that from when I started. I will try to document my package file a bit more when I update it so it shows what all sensors are used for.