Hello, On my installation I have “Can you sell to the grid ?” set to “Yes” in DESS, because otherwise the Sell price isn’t graphed. The “Maximum Export Power” is set to 0 kW however and obviously I’m running in Green mode. VenusOS version is v3.55 stable and I’m also running The Hack of @dognose …

I’ve been using DESS since more than a year, yet very often swiched it off for some hours, since it was doing weird things. Yesterday I upgraded my RPI Venus GX to 3.60 hoping the §14a improvements stop this. I perceived no real change. What bugs me most, is that it is discharging the battery into …

There seems to be something rather off with DESS it seems. Today my system again exported solar surplus to the grid when my battery was full, even though I explicitly configured that this should never happen. The “Can you sell to the grid” setting is enabled only so I can see the injection price. …

[image] Bart Champagne: Does anybody have a clue why DESS is screwing up ? A few. Always rounding down the hourly SoC target (real number) from the API to quater hourly integer targets. Especially when charging the system always throttles down towards the end of the quarter hour, misses its…

[image] Bart Champagne: Adhoc Charge also came in handy I’m too new to DESS to have worked with the dognose hack but from Node-RED DESS I learned it has a useful b-goal_SOC and b_goal_hours setting. I’m using those to trigger ‘battery balancing’ on and off in VRM DESS which I assume mimickes…

[image] Bart Champagne: My system exported solar surplus to the grid when my battery was full, even though I explicitly configured that this should never happen. It happened again today by the way. Seems like DESS is ignoring my 0 kW export power setting and the setting that DC coupled PV su…

[image] Bart Champagne: The “Can you sell to the grid” setting is enabled When you set Feedin to enabled in DESS, that (currently) takes precedence over local ESS Settings. We are internally discussing if it should be that way, or the other way round. On one hand, local settings are “close…

[image] Bart Champagne: but then I no longer see the injection price graph I have a comparable situation: I want to force DESS to charge (or discharge) at maximum power (for one or more full hours) but the option that ‘just works’ (keep batteries charged) disables the VRM forecasting charts. …

Right, using “Keep Batteries charged” will drive DESS into an “Off/Error-State” (There’s nothing to dessify, if batteries shall not be touched), and when DESS is off, VRM won’t display the DESS graphs.

Hi, thanks for replying - that does explain a lot. In the discussion on which FeedIn restriction setting should “win”, how about “the most restrictive”, be that local or DESS ? It makes perfect sense that DESS restricts FeedIn in case of negative injection prices, local setting to allow FeedIn sho…

DESS not honoring "zero sell to grid" today ? (2025-05-10 + 2025-06-16)

Q&A and troubleshooting DESS

BartChampagne (Bart Champagne) 17 June 2025 15:41 13

As a workaround I’ve put this in a Node Red flow, since for some reason DESS tries to allow feed in.

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DESS not honoring "zero sell to grid" today ? (2025-05-10 + 2025-06-16)

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