fast mode

[viorelovidiu]

Description

Hello,
When using fast mode, it always pulling 2.8kW when the maximum of inverter is 6kW. The house alone is around 600w per hour so, the ev charger should pull at least 5kW and reduce the power when the house consumption is increasing. inverter is set on Self use as I cannot inject into the grid yet. However, at night it should work pulling only from the battery.

Thank you,
Ovidiu

Steps to Reproduce

set fast mode on Charge tab.
allways pulling 2,8kwh (12A)

⚠️ RETURN TO EVCC TAB → COPY STEP 2 → PASTE HERE

Configuration (YAML)

Configuration (UI)

{
  "charger": [
    {"id":9,"name":"db:9","type":"template","config":{"template":"ocpp-wallbox","connector":"1","connecttimeout":"5m","meterinterval":30000000000,"metervalues":"Power.Active.Import,Energy.Active.Import.Register,Current.Import,Voltage","remotestart":true,"stationid":"***"},"deviceProduct":"wallbox Pulsar Plus"}
  ],
  "experimental": true,
  "influx": {"database":"","insecure":false,"org":"","password":"","token":"","url":"","user":""},
  "interval": 10,
  "loadpoints": [
    {"id":10,"name":"db:10","batteryBoostLimit":85,"charger":"db:9","defaultMode":"minpv","limitEnergy":20,"limitSoc":0,"maxCurrent":32,"minCurrent":6,"minSoc":0,"phasesConfigured":1,"planEnergy":0,"planPrecondition":0,"planStrategy":{"continuous":false,"precondition":0},"planTime":"0001-01-01T00:00:00Z","priority":0,"smartCostLimit":null,"smartFeedInPriorityLimit":null,"soc":{"estimate":true,"poll":{"interval":3600000000000,"mode":"charging"}},"thresholds":{"disable":{"delay":180000000000,"threshold":0},"enable":{"delay":60000000000,"threshold":0}},"title":"WallboxPulsar","ui":{"maxTemp":100,"minTemp":0}}
  ],
  "meter": [
    {"id":19,"name":"db:19","type":"template","config":{"id":1,"template":"solis-hybrid-s","baudrate":9600,"comset":"8N1","host":"192.168.1.108","maxacpower":6000,"modbus":"tcpip","port":502,"usage":"pv"},"deviceProduct":"Ginlong Solis Hybrid Inverter (S Series)","deviceTitle":"Solis Inverter"},
    {"id":21,"name":"db:21","type":"template","config":{"id":1,"template":"solis-hybrid-s","baudrate":9600,"comset":"8N1","host":"192.168.1.108","maxacpower":"0","modbus":"tcpip","port":502,"usage":"grid"},"deviceProduct":"Ginlong Solis Storage Inverter (S Series)"},
    {"id":18,"name":"db:18","type":"template","config":{"id":1,"template":"solis-hybrid-s","baudrate":9600,"capacity":32,"comset":"8N1","host":"192.168.1.108","maxacpower":"0","maxchargepower":5000,"maxdischargepower":5000,"maxsoc":100,"minsoc":10,"modbus":"tcpip","port":502,"usage":"battery"},"deviceProduct":"Ginlong Solis Storage Inverter (S Series)","deviceTitle":"Felicity 32kWh"}
  ],
  "mqtt": {"broker":"","caCert":"","clientCert":"","clientID":"","clientKey":"","insecure":false,"password":"","topic":"evcc","user":""},
  "residualPower": 100,
  "shm": {"deviceId":"","deviceSerial":"","vendorId":""},
  "site": {"aux":null,"battery":["db:18"],"consumer":null,"ext":null,"grid":"db:21","pv":["db:19"],"title":"Vila 8"},
  "tariff": [
    {"id":15,"name":"db:15","type":"template","config":{"template":"fixed","price":1.11},"deviceProduct":"Fixed Price"},
    {"id":16,"name":"db:16","type":"template","config":{"template":"fixed","price":0.28},"deviceProduct":"Fixed Price"},
    {"id":17,"name":"db:17","type":"template","config":{"template":"forecast-solar","az":25,"dec":10,"horizon":"0","interval":"1h","kwp":7.7,"lat":"***","lon":"***"},"deviceProduct":"Forecast.Solar","deviceTitle":"Weather"}
  ],
  "tariffRefs": {"co2":"","feedIn":"db:16","grid":"db:15","planner":"","solar":["db:17"],"temperature":""}
}

System State

{
  "apiReady": true,
  "aux": [],
  "battery": {
    "capacity": 32,
    "devices": [{"name":"db:18","capacity":32,"controllable":true,"power":2254,"soc":99,"suggestion":{"action":"normal","actionable":true,"charge":301.19584177332155,"discharge":0},"title":"Felicity 32kWh"}],
    "forecast": {"highest":{"limit":true,"soc":100,"time":"2026-08-15T12:00:00+02:00"},"lowest":{"soc":73.57513904571533,"time":"2026-08-15T06:30:00+02:00"}},
    "power": 2254,
    "soc": 99
  },
  "batteryDischargeControl": false,
  "batteryGridChargeActive": false,
  "batteryGridDischarge": false,
  "batteryMode": "unknown",
  "bufferSoc": 55,
  "bufferStartSoc": 0,
  "config": "/etc/evcc.yaml",
  "currency": "RON",
  "database": "/root/.evcc/evcc.db",
  "deviceColors": [],
  "eebus": {"config":{"certificate":{"private":"***","public":"-----BEGIN CERTIFICATE-----
MIIBvTCCAWOgAwIBAgIRA9ewpFQwlYK1kHwU2HFN5qkwCgYIKoZIzj0EAwIwPjEL
MAkGA1UEBhMCREUxDTALBgNVBAoTBEVWQ0MxCTAHBgNVBAsTADEVMBMGA1UEAwwM
RVZDQ19IRU1TXzAxMB4XDTI2MDcxMzA5NTMwM1oXDTM2MDcxMDA5NTMwM1owPjEL
MAkGA1UEBhMCREUxDTALBgNVBAoTBEVWQ0MxCTAHBgNVBAsTADEVMBMGA1UEAwwM
RVZDQ19IRU1TXzAxMFkwEwYHKoZIzj0CAQYIKoZIzj0DAQcDQgAEtzsYFQqUtk0U
2zLzXoRPWsQvXxSbJkzr4jU5huHiJaEEViv2XmknK18amJnB8Grt8rJu+WcoJKe2
3LShAEX2uaNCMEAwDgYDVR0PAQH/BAQDAgeAMA8GA1UdEwEB/wQFMAMBAf8wHQYD
VR0OBBYEFKESfCSttfO1qz8//8v17TrYjXdJMAoGCCqGSM49BAMCA0gAMEUCIQC0
ni35j8s2majrZc/Gs5pZ4mQnAbiYWnL6EkEgSwNkcgIgHq2fLzk/1ta7e+pOoD/D
Z//yhxWdIw7nIJnMSLYd2+4=
-----END CERTIFICATE-----
"},"port":4712,"shipid":"EVCC-3562653236613832"},"status":{"qr":"SHIP;SKI:a1127c24adb5f3b5ab3f3fffcbf5ed3ad88d7749;ID:EVCC-3562653236613832;BRAND:EVCC;TYPE:EnergyManagementSystem;MODEL:HEMS;SERIAL:EVCC-3562653236613832;CAT:2;FPH256:92AB54DC4E1C0463C6CF95BC0EC5EC26DBE47BBB083E986301830E142286CF9C;SPSEC:73CDB405D44953050D5B2D4A82E32221;ENDSHIP;","ski":"a1127c24adb5f3b5ab3f3fffcbf5ed3ad88d7749"}},
  "evopt": {"details":{"batteryDetails":[{"name":"db:18","type":"battery","capacity":32,"title":"Felicity 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  },
  "greenShareHome": 1,
  "greenShareLoadpoints": 1,
  "grid": {"name":"db:21","currents":[2.1,0,0],"energy":33.86,"power":0,"powers":[0,0,0]},
  "gridConfigured": true,
  "hems": {"config":{"configured":false}},
  "historyUpdated": "2026-08-14T17:00:00+02:00",
  "homePower": 868.4,
  "influx": {"database":"","insecure":false,"org":"","password":"","token":"","url":"","user":""},
  "interval": 10,
  "loadpoints": [
    {"name":"db:10","batteryBoost":false,"batteryBoostLimit":85,"chargeCurrents":[12.2,0,0],"chargedEnergy":127,"chargeDuration":180,"chargePower":2781.6,"chargerFeatureAutodetectDisabled":false,"chargerFeatureAverage":false,"chargerFeatureCacheable":false,"chargerFeatureClimaterDisabled":false,"chargerFeatureCoarseCurrent":false,"chargerFeatureContinuous":false,"chargerFeatureHeating":false,"chargerFeatureIntegratedDevice":false,"chargerFeatureOffline":false,"chargerFeatureRetryable":false,"chargerFeatureStreaming":false,"chargerFeatureSwitchDevice":false,"chargerFeatureWakeUpDisabled":false,"chargerFeatureWelcomeCharge":false,"chargerIcon":null,"chargerPhases1p3p":false,"chargerSinglePhase":false,"chargerStatusReason":"unknown","chargeTotalImport":2759.953,"chargeVoltages":[228,0,0],"charging":true,"connected":true,"connectedDuration":0,"disableDelay":180,"disableThreshold":0,"effectiveLimitSoc":100,"effectiveMaxCurrent":32,"effectiveMinCurrent":6,"effectiveMinSoc":0,"effectivePlanId":0,"effectivePlanSoc":0,"effectivePlanStrategy":{"continuous":false,"precondition":0},"effectivePlanTime":null,"effectivePriority":0,"enabled":true,"enableDelay":60,"enableThreshold":0,"last24hEnergy":0,"last7dEnergy":22453,"limitEnergy":20,"limitSoc":0,"maxCurrent":32,"minCurrent":6,"minSoc":0,"minSocNotReached":false,"mode":"now","offeredCurrent":32,"phaseAction":"inactive","phaseRemaining":0,"phasesActive":1,"phasesConfigured":1,"plan":null,"planActive":false,"planEnergy":0,"planOverrun":0,"planProjectedEnd":null,"planProjectedStart":null,"planStrategy":{"continuous":false,"precondition":0},"planTime":null,"priority":0,"pvAction":"inactive","pvRemaining":0,"sessionCo2PerKWh":null,"sessionEnergy":127,"sessionPrice":0.045077487098012445,"sessionPricePerKWh":0.3549408432915688,"sessionSolarPercentage":90.971,"smartCostActive":false,"smartCostLimit":null,"smartCostNextStart":null,"smartFeedInPriorityActive":false,"smartFeedInPriorityLimit":null,"smartFeedInPriorityNextStart":null,"suggestion":null,"title":"WallboxPulsar","todayEnergy":127,"ui":{"maxTemp":100,"minTemp":0},"vehicleClimaterActive":null,"vehicleDetectionActive":false,"vehicleIdentity":"evcc","vehicleLimitSoc":0,"vehicleName":"","vehicleOdometer":0,"vehicleRange":0,"vehicleSoc":0,"vehicleTitle":"","vehicleWelcomeActive":false}
  ],
  "mcp": true,
  "messaging": {},
  "messagingEvents": null,
  "modbusproxy": null,
  "mqtt": {"broker":"","caCert":"","clientCert":"","clientID":"","clientKey":"","insecure":false,"password":"","topic":"evcc","user":""},
  "network": {"externalUrl":"","host":"","internalUrl":"http://172.19.0.2:7070","port":7070},
  "ocpp": {"config":{"port":8887},"status":{"stations":[{"id":"1","status":"configured"}]}},
  "ocppforwarder": {"config":[],"status":[]},
  "optimizer": true,
  "optimizerChargingStrategies": ["charge_before_export","attenuate_demand_peaks","attenuate_feedin_peaks","attenuate_grid_peaks","none"],
  "optimizerChargingStrategy": "charge_before_export",
  "prioritySoc": 45,
  "pv": [
    {"name":"db:19","power":1396,"title":"Solis Inverter"}
  ],
  "pvEnergy": 0,
  "pvPower": 1396,
  "remote": {"config":{"enabled":true},"status":{"connected":false,"loginBlocked":false}},
  "residualPower": 100,
  "setupRequired": false,
  "shm": {"deviceId":"","deviceSerial":"","vendorId":""},
  "siteTitle": "Vila 8",
  "smartCostAvailable": false,
  "smartCostType": "pricestatic",
  "smartFeedInPriorityAvailable": false,
  "solarAdjusted": true,
  "sponsor": {"status":{"name":"sponsorship unavailable","expiresAt":"0001-01-01T00:00:00Z","token":"eyJhbG.......h1T7wM"}},
  "startupCompleted": true,
  "statistics": {"30d":{"avgCo2":0,"avgPrice":0.3007819237308347,"chargedKWh":107.80639999999858,"solarPercentage":97.49615376736931},"365d":{"avgCo2":0,"avgPrice":0.3001717949154216,"chargedKWh":124.38919999999871,"solarPercentage":97.53972777608894},"thisYear":{"avgCo2":0,"avgPrice":0.3001717949154216,"chargedKWh":124.38919999999871,"solarPercentage":97.53972777608894},"total":{"avgCo2":0,"avgPrice":0.3001717949154216,"chargedKWh":124.38919999999871,"solarPercentage":97.53972777608894}},
  "system": "linux/amd64",
  "tariffFeedIn": 0.28,
  "tariffGrid": 1.11,
  "tariffPriceHome": 0.28,
  "tariffPriceLoadpoints": 0.28,
  "tariffs": {},
  "tariffSolar": 1738.146,
  "telemetry": false,
  "timezone": "CEST +02:00",
  "vehicles": {},
  "version": "0.313.3"
}

Logs

[lp-1  ] DEBUG 2026/08/14 17:24:50 charge voltages: [229 0 0]V
[lp-1  ] DEBUG 2026/08/14 17:24:50 detected connected phases: 1p
[lp-1  ] DEBUG 2026/08/14 17:24:50 detected active phases: 1p
[lp-1  ] DEBUG 2026/08/14 17:24:50 charge total import: 2759.930kWh
[lp-1  ] DEBUG 2026/08/14 17:24:50 charger status: C
[lp-1  ] DEBUG 2026/08/14 17:24:50 !! plan: plan time zero
[site  ] DEBUG 2026/08/14 17:24:50 solar forecast: produced 26.055kWh, forecasted 35.266kWh, scale 0.739
[site  ] DEBUG 2026/08/14 17:24:59 ----
[lp-1  ] DEBUG 2026/08/14 17:24:59 charge power: 2782W
[lp-1  ] DEBUG 2026/08/14 17:24:59 charge currents: [12.2 0 0]A
[site  ] DEBUG 2026/08/14 17:24:59 grid power: -0W
[site  ] DEBUG 2026/08/14 17:24:59 pv 1 power: 1396W
[site  ] DEBUG 2026/08/14 17:24:59 battery 1 power: 2254W
[site  ] DEBUG 2026/08/14 17:24:59 grid powers: [-0 -0 -0]W
[site  ] DEBUG 2026/08/14 17:25:00 battery 1 soc: 99%
[site  ] DEBUG 2026/08/14 17:25:00 grid currents: [2.1 0 0]A
[site  ] DEBUG 2026/08/14 17:25:00 site power: 2354W
[lp-1  ] DEBUG 2026/08/14 17:25:00 charge voltages: [228 0 0]V
[lp-1  ] DEBUG 2026/08/14 17:25:00 detected connected phases: 1p
[lp-1  ] DEBUG 2026/08/14 17:25:00 detected active phases: 1p
[lp-1  ] DEBUG 2026/08/14 17:25:00 session energy: 0.127kWh
[lp-1  ] DEBUG 2026/08/14 17:25:00 charge total import: 2759.953kWh
[lp-1  ] DEBUG 2026/08/14 17:25:00 charger status: C
[lp-1  ] DEBUG 2026/08/14 17:25:00 !! plan: plan time zero
[site  ] DEBUG 2026/08/14 17:25:00 solar forecast: produced 26.055kWh, forecasted 35.266kWh, scale 0.739

Version

v0.313.3

System

linux/amd64, CEST +02:00

[github-actions]

Thanks for the report. Looking at the attached system state: the loadpoint is in now (fast) mode, effectiveMaxCurrent is 32 and offeredCurrent is already 32 — so evcc is telling the charger to allow the full 32 A. The actually measured chargeCurrents is only [12.2, 0, 0], i.e. the wallbox/vehicle is drawing far less than what evcc offers.

This points away from evcc limiting the current and toward something downstream capping it: either the vehicle's own onboard AC charger limit, or a local current limit configured on the Wallbox Pulsar Plus itself (e.g. via the Wallbox app "power sharing"/manual current setting) that overrides what's requested over OCPP. Also note the session was only 3 minutes old at the time of the snapshot (chargeDuration: 180), and some vehicles ramp up AC charge current gradually during the first minutes of a session.

To confirm whether this is an evcc issue vs. a vehicle/wallbox-side limit, could you provide:

• Does the current stay stuck at ~12 A for the whole session, or does it increase after a few minutes? A longer log excerpt (10+ minutes) covering the whole session would help.
• What vehicle is charging, and what is its rated single-phase AC charging power/current?
• What is the manual/local current limit configured in the Wallbox app for this charge point (independent of OCPP)?

Without that, I can't tell whether evcc is the cause here.

🤖 Generated with Claude Code

[viorelovidiu]

the car is a tesla that has no limit on the power set. Wallbox pulsar plus is the ev charger connected via OCPP protocol and no other limits here configured. I had other sessions in the past with the same issue. I had to ramp up from ev charger to 20A as i would like to have.
yes, it stays stuck at 12A for long time. Maximum rate is 7kw on single-phase but inverter is only 6kw so i am limiting to 20A from evcc settings. However, on minimum+solar mode is ramping correctly to 18-20A if PV solar is full power. the problem is only on fast mode.

[github-actions]

Thanks for the additional details.

Re-checking against the code: in now (fast) mode, core/loadpoint.go's fastCharging() simply calls setLimit(effectiveMaxCurrent()) — it requests the loadpoint's max current immediately and unconditionally, with no PV/battery-aware ramping logic involved. The offeredCurrent field in the system state (32) reflects what evcc actually sent via OCPP (MaxCurrentMillis/SetChargingProfileRequest) — and core/loadpoint.go's sync logic (syncCharger) even overwrites offeredCurrent with the charger's own reported Current.Offered value each cycle, so a stale/wrong value on evcc's side would self-correct and show up in the logs as a "charger logic error: current mismatch" warning. None of that appears in the excerpt you posted.

So evcc does appear to be requesting the full current in fast mode; the gap to the measured 12.2A is happening downstream of evcc's request (Wallbox Pulsar Plus firmware/local settings, or the Tesla's own onboard AC charge-current limit — many Tesla vehicles let you cap "Charge Current" independently of what the EVSE offers, in the car's own charging settings). That would also explain why the value is stuck at a fixed ~12A rather than slowly climbing.

The detail that minPV mode reaches 18-20A while fast mode does not is unusual and worth confirming with real data rather than assumption. To pin this down, could you provide:

• A continuous DEBUG log (10+ minutes) of a fast-mode session from plug-in until it's stuck at 12A, so we can see whether evcc's requested current (MaxCurrent/chargeCurrents in the logs) ever changes, or stays flat at 32A the whole time.
• Confirmation of the Tesla's own "Charge Current"/charging amps setting in the car (Controls → Charging), independent of evcc/Wallbox settings.
• Whether the same vehicle/session, switched from fast to minPV mode mid-session (not a new session), then ramps up — that would rule out a simple "fresh session ramp-up" explanation.

Without that, I can't confirm a defect in evcc's logic, so I won't mark this as a bug yet.

🤖 Generated with Claude Code

[andig]

This needs a log showing how that situation was created, not when it already exists.

[viorelovidiu]

This needs a log showing how that situation was created, not when it already exists.

Hello,
Over the day is fine, it ramps up straight to the imposed limit of 20A.
At night it starts at 12A and it stays there.
I will try again tonight with logs.

Thank you

[viorelovidiu]

Hello,
At night it started directly at 20A as it should. later, I accidentaly select Min+Solar and immediately selected again Fast. Back on Fast, it stayed only at 12A. Today I also managed to connect my car via mqtt Teslamate. I think it might help also.
I would test again at night.

[andig]

Unfortunately your report is missing a detailed log file. Without log, we don‘t have the information for diagnosing the issue described. See https://docs.evcc.io/docs/faq#wie-kann-ich-ein-logfile-zur-fehleranalyse-erstellen.