Rooftop sites data incorrect?

#1

Since tuesday I noticed that the rooftop sites PV Power data (estimated actual and forecast) seems to be off by a factor of ~10. For my setup the peak was a about 2kW for an average day, while now it is more in the range of 0.2kW. Moreover, my inverter measurement (which I also post to Solcast) confirm that the PV Power data is incorrect.

Does anyone else experience this error? Had something chaged in the API?

#2

Please check the accuracy graph in the Toolkit. I believe measurements may have been incorrectly submitted as 0.2kW instead of 2kW, so the algorithm has adjusted the forecast based on those measurements.

Try setting up a second identical site to compare, you should get a better result:

#3

Thanks, there was indeed someting wrong with the measurement data I’m uploading. I send kWh data for the 5m interval, which is 1/12 of the kW number. So that explains the difference.