Feature Request - Trend file of utility voltage on home screen

[gzebrick]

Hello. Thank you for your application. It works great with my Honeywell 17KW home generator. I continue to update the SW as new versions are released.

Where I live we often have power issues. I'd like to use the monitor's utility voltage value to provide an live trend of the Utility line voltage on the home screen similar to, and in addition to, the current kW output. Ideally this trend would have an adjustable vertical voltage min/max scale along with the adjustable horizontal time.

I'm hoping to catch issues with brownouts and voltage spikes that are not enough to trip the generator in, but are enough to cause issues with home electronics.

Any chance a 2nd trend graph might be added to the home screen ?

Thank you.

[jgyates]

I have your previous request on this: #439

The issue I have with this is that there is a lot of complexity in gathering, storing and displaying the power log and it only captures data when the generator is running. Doing this for the utility voltage will increase the code complexity, storage requirements and possibly reduce the performance of genmon. In my view the benefit of this requested feature does not outweigh the trade offs.

One thing you can to to get this data is to use the exiting MQTT plugin to export the utility voltage data and graph it using tools like Grafana or Telegraf. Here is an example:

#673

there are several threads on exporting genmon data via MQTT and graphing it. https://github.com/jgyates/genmon/issues?q=label%3A%22automation+-+monitoring+apps%22+