My forecast data from the VRM dashboard (under Installation data > Overview) currently appears to be implausible, showing roughly double the correct figures, for both Solar production and Consumption. [2025-08-06 01.51.58 vrm.victronenergy.com 15e1c0342361] The data displayed in the graphs reflec…

Indeed, there is still a problem with forecasts! For today it predicts about 60 kWh: [Screenshot_20250807_080545_VRM] But if I look at the next 7 days, it predicts almost 200 kWh for today!: [Screenshot_20250807_080638_VRM]

Hi! Maybe it now needs some time to make new calculations based on the current consumption/production? Perhaps so, but does that explain the difference between VRM portal and the API calls to VRM? My PV forecast is rubbish aswell, it predicts 5-7 Kw PV for today and updates itself to a higher r…

@jarco My PV forecast (VRM: 710066) is also totally wrong. If you look at the prediction for today, it predicts only a few kWh. Normally this would be 30-50 kWh. [Schermafbeelding 2025-08-07 om 09.55.21] On the contrary, if you look at the prediction in a multi-day view, the prediction is way to…

The forecast is now much too low, according to PV solcast it should be around 30 kWh for today and in VRM it shows 6 to 8 kWh

me2 On Monday 4. august i couldn’t get data from vrm to feed my nodered(api-call), on tuesday pv forecast was very optimistic around 30% more than expected, one day later forecast more than doubled, today my pv forecast nearly trippled…so totaly useless now

Hi all, We’re working on it, hang tight! Thanks for all the reports :slight_smile: With kind regards, Jarco

Seems to be working fine for me again now!

@jarco and others, inside vrm the 7 day forecast seems within the ’normal range’ now (with the ‘normal’ overshoot for algorithmic EVCS expectations in consumption -but not reality-) since I’m not normally using the the API call (yet?) I’ll leave that for others to report on. [IMG_6023]

Short- and Medium term seems to be back to normal, on VRM as well as the API. Longterm (today + 4 and on) still a bit low, but that’s basically not an issue. Thanks for the quick fix!

Hi all, As you’ve probably noticed by now, we’ve implemented a fix. It’s a very temporary fix, so once the underlying issues are resolved you’ll probably see a much lower forecast than you’re used to. We’re hoping that’ll happen today or tomorrow, but can’t say for certain yet. Note that these visu…

VRM Forecast data doubled(?)

DIY

jarco (Jarco) 7 August 2025 08:06 25

Hi all,

We’re working on it, hang tight! Thanks for all the reports

With kind regards,

Jarco

Major change on VRM API

Topic		Replies	Views
Major change on VRM API VRM beta vrm	2	241	7 August 2025
VRM PV forecast (improvement appreciated) - Comparison Victron's Solcast vs. native Solcast VRM beta vrm , solar_forecast	26	1060	11 March 2025
DESS: Why is the forecast 2-6 times higher sometimes - how is solar forecast working? DESS dess	98	2809	9 September 2025
VRM release notes: DESS Adjustable consumption, Split consumption categories, Multisite AI DESS vrm , dess	48	1878	18 July 2026
VRM release notes 27-03-2025 DESS vrm , dess	16	971	1 April 2025

VRM Forecast data doubled(?)

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