# Voltcast

Source: https://docs.evcc.io/en/tariffs/voltcast

Requires a Voltcast API key — free DE-LU tier, paid any-zone tiers at [voltcast.com](https://voltcast.com/register). Forecast accuracy is published daily at [voltcast.com/accuracy](https://voltcast.com/accuracy).

Supported features: EU

## Parameters

| Name | Description | Default / example | |
| --- | --- | --- | --- |
| apikey | API Key API key from https://voltcast.com/dashboard |  |  |
| zone | 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) | DE-LU |  |
| 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 | math.Max((price + charges) * (1 + tax), 0.0) | advanced |
| average | Average by hour |  | advanced |

## Configuration example for evcc.yaml

```yaml
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
```