I’ve spent a bit of time setting up a Node-RED flow to import prices from my (unsupported) local provider in Australia - Amber Electric - using their API. With thanks to @dfaber ’s post and @podarok ’s contribution also, I’m feeding the provider’s prices into Dynamic ESS successfully: // Extract the …

Hi All I’ve imported the flow from the gist above and think I have updated all the various SiteIDs + API tokens for both VRM and Amber. It looks like I’m successfully retrieving the prices from Amber. I’m currently getting an error when attempting to update the DESS prices. “Error fetching VRM da…

G’day, Greg. This occurs secondary to Amber’s recent-ish change to 5-minute billing. DESS only supports 30-minute increments. I fixed this locally when it first happened but didn’t think to update the Gist . I’ve done that now. Thanks for the reminder! :slight_smile: It’s probably just as easy to u…

Hi Andrew Ah gotcha, great pickup. I’ve made that change but still have an error on the vrm-api node. I’m still getting the “Error fetching VRM data” and in the debug log: {“url”:“``https://vrmapi.victronenergy.com/v2/installations/483236/dynamic-ess-settings?",“options”:{},“headers”:{“X-Authoriz…

That’s unusual. I’m on the v3.70 betas, but this has been working for the better part of 12 months. The victron-vrm-api Node-RED package is 0.2.15 - I suppose it’s possible there’s an issue with 0.2.13, but I feel like it’s unlikely. Enabling verbose output on my node shows the endpoint is the same …

Hi guys, Good to see this topic is still getting some attention. I’m about to revisit our own hybrid DESS Trade solution and have a few questions you might be able to enlighten me on. Is it possible to use VRM-API to replace the VRM DESS schedule (the one readable by installation stats, visible o…

yeah i’m wondering if there is an issue with this package version. Out of interest, did you specifically choose 0.2.15 or did it just come with whatever version you had loaded on the GX. Also, what are you using for a GX? I’m using a Cerbo… Happy to be asked because it has to be something basic rig…

Hi Andrew, Any luck with the negative pricing?

Alas, no. DESS is a hot mess, unfortunately. It is not a priority for Victron and getting it to function like it should is difficult. I’ve asked what Victron plan for it in the long term and can’t get answers. I’ve had some success with Node-RED flows turning off the MPPTs during negative grid pric…

OK! so it seems that there is something going on with the API call being received by VRM as i got annoyed and just kept smashing the inject button and after about 15 hits it actually came back with a success and updates the prices but it is few and far between. No real error message to go off either…

What error are you getting? I’ve had a NodeRED flow running to update prices for many months now, and it seems to be throwing a 422 error as of the past few days (also on 3.7~45) [IMG_0217]

Importing prices into Dynamic ESS with NodeRED

Node-RED

ndrew (Andrew) October 14, 2025, 4:20am 38

I haven’t had a chance to look closely myself, but I’d suggest you take a look at the 3.70~45 release notes, as there are breaking changes for the Node-RED VRM API nodes.

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Importing prices into Dynamic ESS with NodeRED

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