Error fetching VRM Data for Dynamic ESS since (quarterly hour) prices known

Q&A and troubleshooting DESS
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1

Good afternoon,

Since the quarterly hour prices for tomorrow, October 1st 2025, are known (as can bee seen in VRM Portal), I’m experiencing a fetch error on my VRM API node in Node Red for Dynamic ESS. Other API fetches work just fine.
Anyone else experiencing this?

A nice feature would be a checkbox in the configuration of the VRM API node to select either quarterly prices (resulting in an array of 96 prices per 24 hours), or hourly prices (resulting in an array of 24 prices per 24 hours).

Kind regards,
Tim

edit: typo

1 Like
2

Same. For what it’s worth the API returns:

{
"object": {
  "status": 408,
  "statusText": "Request Timeout",
....
  "data": {
    "detail":"Could not get energy prices"
  }
}

Firmware: same results on 3.70~39 and 3.70~27
Price settings in VRM DESS 15/60 minutes also make no difference.

1 Like
3

The API works again but is now returning averaged hour prices

4

Hi, please try setting the settings of that site to 15 minutes.

5

I think this is a just temporary artifact for the remainder of today:

image
image883×634 13.8 KB

6

indeed, and problem solved tomorrow

2 Likes
7

Is there some sort of latency for the settings to change? I changed my DESS settings in VRM to 15min a few hours ago and in VRM the price is OK, but vrm api in node red only gets hourly prices?

Edit: I still had old version of api installed and active despite install-tab saying 3.0 is installed. Now with workarounds on a raspi+node-red I get quarterly prices