forecast.yaml

# Requires in Home Assistant:
# apexcharts card - install via HACS
# GivTCP add-on for Givenergy inverter (PV Power entity)
# Solcast integration (today forecast entity)
# This card config will show the solcast solar forecast for today, and slowly fill up with the real PV power as the day progresses.
type: custom:apexcharts-card
update_interval: 1min
apex_config:
  chart:
    foreColor: rgb(117, 117, 117)
  grid:
    borderColor: rgb(60, 60, 60)
graph_span: 12h #might need updating as the days get longer
span:
  start: day
  offset: +6h #might need updating as the days get longer
header:
  show: true
  title: Solar PV Power Vs Forecast
series:
  - entity: sensor.givtcp_[YOUR_INVERTER]_pv_power #use your givtcp pv power entity
    color: var(--energy-solar-color)
    name: Solar PV
    type: area
    opacity: 0.4
    float_precision: 2
    stroke_width: 2
    group_by:
      func: avg
      duration: 30min
      fill: zero
    extend_to: false
  - entity: sensor.solcast_pv_forecast_forecast_today #use the solcast entity for today forecast
    unit: W
    name: Solcast Forecast
    color: rgb(100, 100, 100)
    data_generator: |
      return entity.attributes.detailedForecast.map((entry) => {
        return [new Date(entry.period_start).getTime(), entry.pv_estimate*1000];
      });
    stroke_width: 3
    group_by:
      func: max
      duration: 30min
yaxis:
  - min: 0
    decimals: 0