VRM Portal and VRM API solar forecast returns only 0 values since a few days

Node-RED
, ,
1

Hi,

since a week, the solar forecast for our installation is no longer working.

What I see:

  • In Node-RED on the Cerbo GX, the VRM API request is still successful
  • The response returns success: true
  • The forecast records are present
  • But vrm_pv_inverter_yield_fc contains only 0 values for all timestamps
  • At the same time, the VRM Portal forecast chart for the same installation is also empty

So this does not look like a local Node-RED or Cerbo GX issue, because:

  • the API call itself still works
  • the same problem is visible directly in the VRM Portal

Site ID: 494184

Consumtion for the same site is working.

Setup:

  • Cerbo GX
  • Node-RED
  • VRM API node using Installation stats
  • Attribute: PV Inverter Yield Forecast
2

Update:

The API response has changed again.

Previously, vrm_pv_inverter_yield_fc returned timestamp/value records with all values equal to 0.

Now the response is:

"records": { "vrm_pv_inverter_yield_fc": false }
"totals": { "vrm_pv_inverter_yield_fc": false }

So the API request itself is still successful ("success": true), but the forecast attribute is now explicitly returned as false instead of a numeric forecast series.

This looks like the forecast data is currently unavailable in VRM for this site / attribute, rather than a local Cerbo GX or Node-RED issue.
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