Thanks Matthijs, but as Murphy’s Law always applies at the worst moment, it seems that half of (dynamic pricing) Europe is switching to 15 minute pricing midnight tonight, rendering (at least right this moment) all Node-RED DESS implementations void. Logs running full of errors, 'Could not get energ…

[image] Jan: Fun fact: tomorrow prices are 0ct (before taxes) all day long. With no official VRM-DESS settings to ensure such an opportunity is being seized upon to charge all our batteries to the brim automatically when such an opportunity presents itself. I wasn’t the only one noticing: …

0.3.2 looks better, thank you for the changes. The schedule for tomorrow still looks a bit weird (like the schedule for yesterday) but this might be on the API side? I have not checked the price/time combo yet. Didn’t have much time today to tweak the conversion to the “old node-red implementation”…

[image] Dirk-Jan Faber (Victron Energy): At the moment there is still a minor thing on the final hour of tomorrow, but that will be fixed. I put some effort today in getting the date/times correct (they are “toLocaleString(“nl-NL”)”). The VRM issue depends on what timezone you’d like to use?…

Not getting the last slots has been fixed now on the API side. Also notice that I’ve released 0.3.3, which fixes a problem with setting the end time (which affected stats retrieval, not Dynamic ESS schedules).

will this be included in a v3.70 beta soon?

Thank you for the continued work on the vrm-api-node. I just installed 0.3.3 and it works wonderfully. I still think however, the API side needs some love as well: From 0.3.2 on the fetching will always return the records in 15 minute buckets. If your contract is hourly based, the 4 buckets of the…

[image] Dirk-Jan Faber (Victron Energy): It is scheduled for the next beta. But when that is due is beyond my control. Hi guys, lovely to see an updated VRM API in v3.70~44 beta but a loud and clear heads up (in the beta changelog) that this update breaks ‘installation stats’ (and possibly o…

this update breaks ‘installation stats’ (and possibly other calls) I must have missed the breaking, apart from having seen a PR for the end of tomorrow, which I still need to review, merge and tag a new release for. Or is there something else breaking?

This doesn’t work anymore, that’s for sure: [image] And since this was up to now the ‘adviced’ way of extracting prices from the schedule (object), all that uses those prices, breaks. I had to revert to 3.70~41 due to lack of time to figure out a new way to get it all working again.

Node-RED DESS implementation issues with 15 minute pricing

Node-RED

dfaber (Dirk-Jan Faber (Victron Energy)) 6 October 2025 17:58 37

It is scheduled for the next beta. But when that is due is beyond my control.

Venus OS v3.70~61 available for public testing

Topic		Replies	Views
Phasing out the Node-RED Dynamic ESS implementation Node-RED vrm , dess , dynamic_ess	76	3689	22 March 2026
Importing prices into Dynamic ESS with NodeRED Node-RED diy , vrm , dess , node-red	46	2029	15 March 2026
Dynamic ESS and 15 minute pricing DESS vrm , dess	33	1512	7 December 2025
Paging all DESSies: Who wants to actively participate in a community DESS fork effort? DESS diy , dess , node-red , victron_community	40	838	21 November 2025
DESS not honoring "zero sell to grid" today ? (2025-05-10 + 2025-06-16) DESS vrm , dess	35	420	18 June 2025

Node-RED DESS implementation issues with 15 minute pricing

Related topics