Displaying current calculated PV output power

[sschusser]

For those who are interested in using this app to forecast the output for an old fashioned PV system without a build in forecast: In order to set and proof the parameters for calculation properly, it is of interest to compare the actual output power of the PV system with the calculated output power. Hence I am asking whether it is possible to show the calculated expected output power value somewhere in the GUI. Not only the integrated value in terms of Wh for the upcoming hour.

[woheller69]

if you have 200Wh the average power is 200W during that hour

[sschusser]

If it is that easy, I can do this simple calculation. So, just one data point per hour? I was expecting a better temporal resolution and, thus, the total amount of energy displayed on the frontend to be an average value calculated by some fancier routines: Integration over time axis.

Many thanks for the reply.

woheller69 @.***> schrieb am Sa., 9. März 2024, 10:24:

if you have 200Wh the average power is 200W during that hour

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[woheller69]

Open-Meteo already delivers cumulated values for each hour

[sschusser]

I am getting confused about the actual situation.

if the displayed energy value for each hour is already summed up over several values, I am not able to calculate the current expected power by just dividing the energy value by the time delta of one hour. This just gives a mean value for this time period.

That is why I was asking for displaying the current expected power.

Best regards

woheller69 @.***> schrieb am Sa., 9. März 2024, 23:23:

Open-Meteo already delivers cumulated values for each hour

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[woheller69]

exactly, as I said you get the average power in that hour