Voltcast

← Tariffs & forecasts

Requires a Voltcast API key — free DE-LU tier, paid any-zone tiers at voltcast.com. Forecast accuracy is published daily at voltcast.com/accuracy.

Parameters

Name	Description	Level
`apikey`	API Key API key from https://voltcast.com/dashboard	optional
`zone`	Bidding zone Default: `DE-LU` Example: `DE-LU`	optional
`charges`	Charge Additional fixed charge per kWh	advanced
`chargesZones`	Charges zones Time-based grid fees that override the default charge.	advanced
`tax`	Tax Additional percentage charge (e.g. 0.2 for 20%)	advanced
`formula`	Formula Individual formula for calculating the price Example: `math.Max((price + charges) * (1 + tax), 0.0)`	advanced
`average`	Average by hour	advanced

Configuration example for evcc.yaml

If you don't want to configure via the UI, you can alternatively use this YAML block.

tariffs:
    grid:
      type: template
      template: voltcast
      apikey: # API Key, API key from https://voltcast.com/dashboard
      zone: DE-LU # Bidding zone, [AL, AT, BE, BG, CH, CZ, DE-LU, DK1, DK2, EE, ES, FI, FR, GR, HR, HU, IE-SEM, IT-CALA, IT-CNOR, IT-CSUD, IT-NORD, IT-SARD, IT-SICI, IT-SUD, LT, LV, ME, MK, NL, NO1, NO2, NO3, NO4, NO5, PL, PT, RO, RS, SE1, SE2, SE3, SE4, SI, SK, UA, XK] (optional)
      charges: # Charge, Additional fixed charge per kWh (optional)
      chargesZones: # Charges zones, Time-based grid fees that override the default charge. (optional)
      tax: # Tax, Additional percentage charge (e.g. 0.2 for 20%) (optional)
      formula: math.Max((price + charges) * (1 + tax), 0.0) # Formula, Individual formula for calculating the price (optional)
      average: # Average by hour, optional