Why is SF-Control only passing 50% of the available input when the battery is full and bypass is enabled?

[mavo]

Hello @reinhard-brandstaedter,

I have a question. My batteries went full today and bypass was enabled automatically from the hub. All good so far. However, now that the battery is at 100%, SF-Control somehow still limits the output sent to the home by 50%. At least looking at the logs... Is this actually the case 2024-02-29 15:17:19,418:INFO: Based on time, solarpower (11.1W) and minimum charge power (200W), hub could contribute 5.0W - Decision path: 2.2.?

2024-02-29 15:17:14,409:INFO: Direct connected panels can't cover demand 29.7W/304.9W, trying to get rest from hub.
2024-02-29 15:17:14,409:INFO: Checking if Solarflow is willing to contribute 275.2W ...
2024-02-29 15:17:14,410:INFO: Based on time, solarpower ( 9.9W) and minimum charge power (200W), hub could contribute  4.0W - Decision path: 2.2.
2024-02-29 15:17:14,410:INFO: Not setting solarflow output limit to 0.0W as it is identical to current limit!
2024-02-29 15:17:14,410:INFO: Solarflow is willing to contribute 0.0W!
2024-02-29 15:17:14,410:INFO: Raising inverter limit from 29.7W to 61.9W
2024-02-29 15:17:14,410:INFO: Direct connected panel limit is 61W.
2024-02-29 15:17:14,410:INFO: Setting inverter output limit to 248W (1 min moving average of 61W x 4)
2024-02-29 15:17:14,411:INFO: Sun: 06:56 - 17:45 Demand: 304.9W, Panel DC: (29.7|0.0), Hub DC: (7.6|7.8), Inverter Limit: 248.0W, Hub Limit: 0.0W
2024-02-29 15:17:17,475:INFO: Battery is full: 100
2024-02-29 15:17:17,476:INFO: Reading last full time: 2024-02-29 15:17:17
2024-02-29 15:17:19,416:INFO: HUB: S:11.1W [ 11.0,10.0,0.0,10.0,11.0,13.0,15.0,13.0,11.0,10.0,0.0,13.0,12.0,11.0,10.0,0.0,10.0,11.0,13.0,14.0,13.0,12.0,11.0,10.0,0.0,10.0,11.0,13.0,17.0,14.0,16.0,12.0 ], B:100% (100|100), C: 0W, P:True, F:0.0h, E:80.0h, H: 12W, L: 0W
2024-02-29 15:17:19,416:INFO: INV: AC:44.7W, DC:59.5W (29.5|0.0|15.0|14.9), L:1600.0W
2024-02-29 15:17:19,417:INFO: SMT: T:ShellyEM3 P:265.5W [ 281.9,280.4,277.4,278.0,236.3,236.2,236.1,251.8,252.0,251.9,277.0,277.2,277.2,258.9,258.3,258.3,258.3,258.3,258.9,252.7,256.4,256.2,280.7,278.3,278.4,241.0,243.1,243.5,279.5,276.7,276.6,283.7,284.6,284.1,278.4,277.1,277.2,235.4,235.3,235.6,245.4,246.9,246.9,236.0,234.4,234.6,277.2,281.1,280.1,279.4,278.6,278.8,239.8,238.1,237.5,279.7,279.4,281.5,242.5,242.1,239.2,275.5,281.2,281.5,281.0,275.6,275.5,283.8,283.4 ]
2024-02-29 15:17:19,417:INFO: Direct connected panels can't cover demand 29.5W/310.2W, trying to get rest from hub.
2024-02-29 15:17:19,417:INFO: Checking if Solarflow is willing to contribute 280.7W ...
2024-02-29 15:17:19,418:INFO: Based on time, solarpower (11.1W) and minimum charge power (200W), hub could contribute  5.0W - Decision path: 2.2.
2024-02-29 15:17:19,418:INFO: Not setting solarflow output limit to 0.0W as it is identical to current limit!
2024-02-29 15:17:19,418:INFO: Solarflow is willing to contribute 0.0W!
2024-02-29 15:17:19,418:INFO: Raising inverter limit from 29.5W to 61.5W
2024-02-29 15:17:19,418:INFO: Direct connected panel limit is 61W.
2024-02-29 15:17:19,418:INFO: Setting inverter output limit to 246W (1 min moving average of 61W x 4)
2024-02-29 15:17:19,419:INFO: Sun: 06:56 - 17:45 Demand: 310.2W, Panel DC: (29.5|0.0), Hub DC: (15.0|14.9), Inverter Limit: 246.0W, Hub Limit: 0.0W
2024-02-29 15:17:24,419:INFO: HUB: S:10.5W [ 0.0,10.0,11.0,13.0,15.0,13.0,11.0,10.0,0.0,13.0,12.0,11.0,10.0,0.0,10.0,11.0,13.0,14.0,13.0,12.0,11.0,10.0,0.0,10.0,11.0,13.0,17.0,14.0,16.0,12.0,11.0,10.0,0.0 ], B:100% (100|100), C: 0W, P:True, F:0.0h, E:80.0h, H: 0W, L: 0W
2024-02-29 15:17:24,420:INFO: INV: AC:42.1W, DC:33.6W (29.4|0.0|2.0|2.2), L:1600.0W
2024-02-29 15:17:24,420:INFO: SMT: T:ShellyEM3 P:263.9W [ 278.0,236.3,236.2,236.1,251.8,252.0,251.9,277.0,277.2,277.2,258.9,258.3,258.3,258.3,258.3,258.9,252.7,256.4,256.2,280.7,278.3,278.4,241.0,243.1,243.5,279.5,276.7,276.6,283.7,284.6,284.1,278.4,277.1,277.2,235.4,235.3,235.6,245.4,246.9,246.9,236.0,234.4,234.6,277.2,281.1,280.1,279.4,278.6,278.8,239.8,238.1,237.5,279.7,279.4,281.5,242.5,242.1,239.2,275.5,281.2,281.5,281.0,275.6,275.5,283.8,283.4,283.6,236.5,235.6 ]
2024-02-29 15:17:24,420:INFO: Direct connected panels can't cover demand 29.4W/306.0W, trying to get rest from hub.
2024-02-29 15:17:24,420:INFO: Checking if Solarflow is willing to contribute 276.6W ...
2024-02-29 15:17:24,420:INFO: Based on time, solarpower (10.5W) and minimum charge power (200W), hub could contribute  5.0W - Decision path: 2.2.
2024-02-29 15:17:24,420:INFO: Not setting solarflow output limit to 0.0W as it is identical to current limit!
2024-02-29 15:17:24,421:INFO: Solarflow is willing to contribute 0.0W!
2024-02-29 15:17:24,421:INFO: Raising inverter limit from 29.4W to 61.3W
2024-02-29 15:17:24,421:INFO: Direct connected panel limit is 61W.
2024-02-29 15:17:24,421:INFO: Setting inverter output limit to 246W (1 min moving average of 61W x 4)
2024-02-29 15:17:24,422:INFO: Sun: 06:56 - 17:45 Demand: 306.0W, Panel DC: (29.4|0.0), Hub DC: (2.0|2.2), Inverter Limit: 246.0W, Hub Limit: 0.0W

MaVo

[reinhard-brandstaedter]

The solarinput to the hub is between 0 and 17w (close yo nothing).
The hub itself consumes, and below 100W its generally only “limitable” in steps of 30W.
Also note that the BP sometimes goes on/off frequently (no idea why the firmware is doing this)

[mdillmann]

This looks like the situation I just reported in issue #231 . If on Standby/battries 100%, the solarpower does not report what COULD be drawn from the panels but what load acutually is taken by the inverter. But the current calculations assume that the power that could be supplied is based on solarpower (minus min charge power).