Prevent Solar Forecast Interval Misconfiguration

[Dalton0190]

Description

I changed the interval from 12h to 6h
after evcc restart the logfile is running crazy with error messages about too many requests (at least 30 messages within 1 msec)
I have a pvnode premium subscribtion with 1000 requests per month

Steps to Reproduce

go to advanced configuration in solar forecast and set from 12h to 6h
restart evcc

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

Configuration (YAML)

no yaml configuration

Configuration (UI)

{
  "charger": [
    {"id":27,"name":"db:27","type":"template","config":{"channel":"0","heating":false,"host":"192.168.2.15","icon":"rocket","integrateddevice":true,"password":"***","standbypower":-600,"template":"shelly","user":"***"},"deviceProduct":"Shelly Plug S"},
    {"id":5,"name":"db:5","type":"template","config":{"connector":"1","connecttimeout":"5m","meterinterval":"10s","stationid":"***","template":"ocpp-goe"},"deviceProduct":"Fronius Wattpilot (OCPP)"}
  ],
  "experimental": true,
  "influx": {"url":"","database":"","token":"","org":"","user":"","password":"","insecure":false},
  "interval": 30,
  "loadpoints": [
    {"id":6,"name":"db:6","batteryBoostLimit":100,"charger":"db:5","defaultMode":"","limitEnergy":0,"limitSoc":0,"maxCurrent":16,"minCurrent":6,"phasesConfigured":0,"planEnergy":0,"planPrecondition":0,"planStrategy":{"continuous":false,"precondition":0},"planTime":"0001-01-01T00:00:00Z","priority":10,"smartCostLimit":-0.4,"smartFeedInPriorityLimit":null,"soc":{"poll":{"mode":"charging","interval":3600000000000},"estimate":true},"thresholds":{"enable":{"delay":60000000000,"threshold":0},"disable":{"delay":180000000000,"threshold":0}},"title":"Carport","vehicle":"db:14"},
    {"id":28,"name":"db:28","batteryBoostLimit":100,"charger":"db:27","defaultMode":"pv","limitEnergy":0,"limitSoc":0,"maxCurrent":2.6,"meter":"db:40","minCurrent":2.6,"phasesConfigured":1,"planEnergy":0,"planPrecondition":0,"planStrategy":{"continuous":false,"precondition":0},"planTime":"0001-01-01T00:00:00Z","priority":0,"smartCostLimit":null,"smartFeedInPriorityLimit":null,"soc":{"poll":{"mode":"charging","interval":3600000000000},"estimate":true},"thresholds":{"enable":{"delay":60000000000,"threshold":0},"disable":{"delay":180000000000,"threshold":0}},"title":"Mining PC"}
  ],
  "meter": [
    {"id":10,"name":"db:10","type":"template","config":{"batteryconfiguri":"/config","host":"192.168.2.66","template":"fronius-solarapi-v1","usage":"pv","user":"***"},"deviceProduct":"Fronius Solar API V1","deviceTitle":"Dach"},
    {"id":36,"name":"db:36","type":"template","config":{"maxacpower":"0","power":"sensor.warmepumpe_leistung_invertiert","template":"homeassistant","uri":"***","usage":"charge"},"deviceIcon":"heater","deviceProduct":"Home Assistant","deviceTitle":"Wärmepumpe"},
    {"id":13,"name":"db:13","type":"template","config":{"host":"froniusgen24.local","key":"0","template":"fronius-ohmpilot","usage":"aux"},"deviceIcon":"smartconsumer","deviceProduct":"Fronius Ohmpilot","deviceTitle":"Ohmpilot"},
    {"id":9,"name":"db:9","type":"template","config":{"host":"froniusgen24.local","id":"200","maxacpower":"0","maxchargerate":"100","port":"502","template":"fronius-gen24","usage":"pv"},"deviceProduct":"Fronius Symo GEN24 Plus","deviceTitle":"Fassade"},
    {"id":8,"name":"db:8","type":"template","config":{"host":"froniusgen24.local","id":"200","maxacpower":"0","maxchargerate":"100","port":"502","template":"fronius-gen24","usage":"grid"},"deviceProduct":"Fronius Symo GEN24 Plus"},
    {"id":11,"name":"db:11","type":"template","config":{"capacity":19.3,"host":"froniusgen24.local","id":"200","maxacpower":"0","maxchargerate":"100","minsoc":10,"port":"502","template":"fronius-gen24","usage":"battery"},"deviceProduct":"Fronius Symo GEN24 Plus","deviceTitle":"BYD HVM"},
    {"id":40,"name":"db:40","type":"template","config":{"host":"192.168.2.15","password":"***","template":"shelly-1pm","usage":"charge","user":"***"},"deviceProduct":"Shelly Plug S"}
  ],
  "mqtt": {"broker":"","user":"","password":"","clientID":"","insecure":false,"caCert":"","clientCert":"","clientKey":"","topic":"evcc"},
  "residualPower": 100,
  "shm": {"vendorId":"","deviceId":"","deviceSerial":""},
  "site": {"title":"Name","grid":"db:8","pv":["db:9","db:10"],"battery":["db:11"],"aux":["db:13"],"ext":["db:36"]},
  "tariff": [
    {"id":33,"name":"db:33","type":"template","config":{"apikey":"***","az":128,"dec":10,"forecast_days":6,"interval":"12h","kwp":2.7,"lat":"***","lon":"***","template":"pvnode"},"deviceProduct":"pvnode","deviceTitle":"Dach Ost"},
    {"id":30,"name":"db:30","type":"template","config":{"apikey":"***","az":240,"dec":10,"forecast_days":6,"interval":"12h","kwp":2.7,"lat":"***","lon":"***","template":"pvnode"},"deviceProduct":"pvnode","deviceTitle":"Dach Südwest"},
    {"id":31,"name":"db:31","type":"template","config":{"apikey":"***","az":218,"dec":90,"forecast_days":6,"interval":"12h","kwp":3,"lat":"***","lon":"***","template":"pvnode"},"deviceProduct":"pvnode","deviceTitle":"Fassade Süd"},
    {"id":32,"name":"db:32","type":"template","config":{"apikey":"***","az":128,"dec":90,"forecast_days":6,"interval":"12h","kwp":3.5,"lat":"***","lon":"***","template":"pvnode"},"deviceProduct":"pvnode","deviceTitle":"Fassade Ost"},
    {"id":16,"name":"db:16","type":"template","config":{"template":"electricitymaps-free","token":"***","zone":"AT"},"deviceProduct":"Electricity Maps Free API"},
    {"id":15,"name":"db:15","type":"template","config":{"average":false,"charges":0.0144,"region":"AT","template":"epex-predictor","uri":"***"},"deviceProduct":"EPEX Predictor Predicted EPEX spot prices"}
  ],
  "tariffRefs": {"grid":"db:15","feedIn":"","co2":"db:16","planner":"","solar":["db:30","db:31","db:32","db:33"]},
  "vehicle": [
    {"id":14,"name":"db:14","type":"template","config":{"accessToken":"***","cache":"15m","capacity":75,"clientId":"1","commandProxy":"https://api.myteslamate.com","icon":"car","refreshToken":"***","template":"tesla","title":"Tesla","vin":"***"},"deviceProduct":"Tesla"}
  ]
}

Logs

[tariff] ERROR 2026/05/06 07:57:36 unexpected status: 429 (Too Many Requests) GET https://api.pvnode.com/v1/forecast/?latitude=47.0257&longitude=15.5325&slope=10&orientation=240&pv_power_kw=2.7&required_data=pv_watts&forecast_days=6&past_days=0
[tariff] ERROR 2026/05/06 07:57:36 unexpected status: 429 (Too Many Requests) GET https://api.pvnode.com/v1/forecast/?latitude=47.0257&longitude=15.5325&slope=10&orientation=240&pv_power_kw=2.7&required_data=pv_watts&forecast_days=6&past_days=0
[tariff] ERROR 2026/05/06 07:57:36 unexpected status: 429 (Too Many Requests) GET https://api.pvnode.com/v1/forecast/?latitude=47.0257&longitude=15.5325&slope=10&orientation=240&pv_power_kw=2.7&required_data=pv_watts&forecast_days=6&past_days=0
[tariff] ERROR 2026/05/06 07:57:36 unexpected status: 429 (Too Many Requests) GET https://api.pvnode.com/v1/forecast/?latitude=47.0257&longitude=15.5325&slope=10&orientation=240&pv_power_kw=2.7&required_data=pv_watts&forecast_days=6&past_days=0
[tariff] ERROR 2026/05/06 07:57:36 unexpected status: 429 (Too Many Requests) GET https://api.pvnode.com/v1/forecast/?latitude=47.0257&longitude=15.5325&slope=10&orientation=240&pv_power_kw=2.7&required_data=pv_watts&forecast_days=6&past_days=0
[tariff] ERROR 2026/05/06 07:57:36 unexpected status: 429 (Too Many Requests) GET https://api.pvnode.com/v1/forecast/?latitude=47.0257&longitude=15.5325&slope=10&orientation=240&pv_power_kw=2.7&required_data=pv_watts&forecast_days=6&past_days=0
[tariff] ERROR 2026/05/06 07:57:36 unexpected status: 429 (Too Many Requests) GET https://api.pvnode.com/v1/forecast/?latitude=47.0257&longitude=15.5325&slope=10&orientation=240&pv_power_kw=2.7&required_data=pv_watts&forecast_days=6&past_days=0
[tariff] ERROR 2026/05/06 07:57:36 unexpected status: 429 (Too Many Requests) GET https://api.pvnode.com/v1/forecast/?latitude=47.0257&longitude=15.5325&slope=10&orientation=240&pv_power_kw=2.7&required_data=pv_watts&forecast_days=6&past_days=0
[tariff] ERROR 2026/05/06 07:57:36 unexpected status: 429 (Too Many Requests) GET https://api.pvnode.com/v1/forecast/?latitude=47.0257&longitude=15.5325&slope=10&orientation=240&pv_power_kw=2.7&required_data=pv_watts&forecast_days=6&past_days=0
[tariff] ERROR 2026/05/06 07:57:36 unexpected status: 429 (Too Many Requests) GET https://api.pvnode.com/v1/forecast/?latitude=47.0257&longitude=15.5325&slope=10&orientation=240&pv_power_kw=2.7&required_data=pv_watts&forecast_days=6&past_days=0
[tariff] ERROR 2026/05/06 07:57:36 unexpected status: 429 (Too Many Requests) GET https://api.pvnode.com/v1/forecast/?latitude=47.0257&longitude=15.5325&slope=10&orientation=240&pv_power_kw=2.7&required_data=pv_watts&forecast_days=6&past_days=0
[tariff] ERROR 2026/05/06 07:57:36 unexpected status: 429 (Too Many Requests) GET https://api.pvnode.com/v1/forecast/?latitude=47.0257&longitude=15.5325&slope=10&orientation=240&pv_power_kw=2.7&required_data=pv_watts&forecast_days=6&past_days=0
[tariff] ERROR 2026/05/06 07:57:36 unexpected status: 429 (Too Many Requests) GET https://api.pvnode.com/v1/forecast/?latitude=47.0257&longitude=15.5325&slope=10&orientation=240&pv_power_kw=2.7&required_data=pv_watts&forecast_days=6&past_days=0
[tariff] ERROR 2026/05/06 07:57:36 unexpected status: 429 (Too Many Requests) GET https://api.pvnode.com/v1/forecast/?latitude=47.0257&longitude=15.5325&slope=10&orientation=240&pv_power_kw=2.7&required_data=pv_watts&forecast_days=6&past_days=0
[tariff] ERROR 2026/05/06 07:57:36 unexpected status: 429 (Too Many Requests) GET https://api.pvnode.com/v1/forecast/?latitude=47.0257&longitude=15.5325&slope=10&orientation=240&pv_power_kw=2.7&required_data=pv_watts&forecast_days=6&past_days=0
[tariff] ERROR 2026/05/06 07:57:37 unexpected status: 429 (Too Many Requests) GET https://api.pvnode.com/v1/forecast/?latitude=47.0257&longitude=15.5325&slope=10&orientation=240&pv_power_kw=2.7&required_data=pv_watts&forecast_days=6&past_days=0
[tariff] ERROR 2026/05/06 07:57:37 unexpected status: 429 (Too Many Requests) GET https://api.pvnode.com/v1/forecast/?latitude=47.0257&longitude=15.5325&slope=10&orientation=240&pv_power_kw=2.7&required_data=pv_watts&forecast_days=6&past_days=0
[tariff] ERROR 2026/05/06 07:57:37 unexpected status: 429 (Too Many Requests) GET https://api.pvnode.com/v1/forecast/?latitude=47.0257&longitude=15.5325&slope=10&orientation=240&pv_power_kw=2.7&required_data=pv_watts&forecast_days=6&past_days=0
[tariff] ERROR 2026/05/06 07:57:37 unexpected status: 429 (Too Many Requests) GET https://api.pvnode.com/v1/forecast/?latitude=47.0257&longitude=15.5325&slope=10&orientation=240&pv_power_kw=2.7&required_data=pv_watts&forecast_days=6&past_days=0
[tariff] ERROR 2026/05/06 07:57:37 unexpected status: 429 (Too Many Requests) GET https://api.pvnode.com/v1/forecast/?latitude=47.0257&longitude=15.5325&slope=10&orientation=240&pv_power_kw=2.7&required_data=pv_watts&forecast_days=6&past_days=0
[tariff] ERROR 2026/05/06 07:57:37 unexpected status: 429 (Too Many Requests) GET https://api.pvnode.com/v1/forecast/?latitude=47.0257&longitude=15.5325&slope=10&orientation=240&pv_power_kw=2.7&required_data=pv_watts&forecast_days=6&past_days=0
[tariff] ERROR 2026/05/06 07:57:37 unexpected status: 429 (Too Many Requests) GET https://api.pvnode.com/v1/forecast/?latitude=47.0257&longitude=15.5325&slope=10&orientation=240&pv_power_kw=2.7&required_data=pv_watts&forecast_days=6&past_days=0
[tariff] ERROR 2026/05/06 07:57:37 unexpected status: 429 (Too Many Requests) GET https://api.pvnode.com/v1/forecast/?latitude=47.0257&longitude=15.5325&slope=10&orientation=240&pv_power_kw=2.7&required_data=pv_watts&forecast_days=6&past_days=0
[tariff] ERROR 2026/05/06 07:57:37 unexpected status: 429 (Too Many Requests) GET https://api.pvnode.com/v1/forecast/?latitude=47.0257&longitude=15.5325&slope=10&orientation=240&pv_power_kw=2.7&required_data=pv_watts&forecast_days=6&past_days=0
[tariff] ERROR 2026/05/06 07:57:37 unexpected status: 429 (Too Many Requests) GET https://api.pvnode.com/v1/forecast/?latitude=47.0257&longitude=15.5325&slope=10&orientation=240&pv_power_kw=2.7&required_data=pv_watts&forecast_days=6&past_days=0

Version

v0.306.2

System

linux/amd64, CEST +02:00

[Dalton0190]

Just got a feedback from pvnode, they really received 125k requests in this short time

[naltatis]

The config you shared shows "interval":"12h" for your pvnode tariffs. Are you sure you've added the h after the 6?

[Dalton0190]

i changed it back to 12h after i saw the logs
not sure if i added the h in the first change

[naltatis]

Please try again to verify if we have a behavior issue here of if it's "just" a communication/validation issue in UI.

[Dalton0190]

changed to "6h" now and seems to be ok
i am afraid to try without the "h" because i need to ask the pvnode guys to reset my account again if i flood them with requests once more

[darwindaume]

@Dalton0190 - please feel free to try it. I am following this issue

[Dalton0190]

Ok i have changed the interval to "6" in one of my four forecast fields and restarted evcc
No excessive messages in the log but the forecast field was empty

After that i changed all four forecast fields to "6" and now its flooding with request again

[darwindaume]

Thanks @Dalton0190 for the test, I have reset your requests counter again, you're good to go.

Quick note on what we saw on our side: the request flood already started when you changed the first field to 6. Adding more just multiplied the rate.

Also took a quick look at templates/definition/tariff/pvnode.yaml — the interval param doesn't have a type defined. Maybe adding some kind of duration type validation could help catch invalid values like 6?

- name: interval
  default: 24h
  advanced: true
  type: duration

[naltatis]

Ok, thanks for the testing. We should either

1. validate/enforce that interval uses a go duration string with unit and not a number (ns) -> simple fix
2. migrate interval to a type: duration property and introduce a way to specify unit in template params. currently durations are shown as second input field. this is fine for timeouts but not for hours -> proper solution, requires concept & migration