15 minutes Forecast and Adjustment VRM API

Q&A and troubleshooting DESS
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Quick question regarding the VRM API for consumption forecasts.

I’m integrating my Cerbo GX with OpenHAB (via MQTT/Node-RED) to optimize my battery setup against a 15-minute dynamic electricity tariff. I get the consumption forecast, overlay my scheduled EV + heat pump loads, and push the adjusted forecast back via the Adjust Consumption Forecast endpoint.

Currently, the forecast index and adjustment endpoints seem locked to 1-hour resolution. Right now I’m aggregating my 15-min OpenHAB slots into 1-hour blocks before sending them to VRM. It works, but obviously leads to less accurate battery control during dynamic price shifts.

Is 15-minute resolution supported (or planned) on the VRM API forecast endpoints? Or is there a workaround/parameter I’m missing to get/push quarter-hourly data?

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Also interested in this. It helps DESS anticipate much faster when high-load devices (like EV chargers) turn on.

Now that VRM calculates and displays strategy in 15-minute intervals, forecast adjustments should support 15-minute intervals too. Even if the main VRM UI stays on a 1-hour view, having this capability available via Node-RED would be a great addition.