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docs: describe feed-in tariff forecast

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Andreas
2026-07-15 09:23:29 +02:00
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CHANGELOG.md
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@@ -40,6 +40,10 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
- Model direct PV-to-load consumption probabilistically from the bundled conditional minute-load
table. The expected direct flow is used consistently for PV bypass, residual load, battery
charging, and grid export on hourly and 15-minute optimization grids.
- Add a dynamic `FeedInTariffEnergyCharts` forecast for direct marketing. Published Energy-Charts
day-ahead market prices are retained at their native hourly or quarter-hourly resolution and
missing slots at the end of the optimization horizon are extended with weekly or daily seasonal
ETS forecasts. A median fallback is used when the available history is too short for ETS.
## 0.3.0 (2026-03-17)
docs/akkudoktoreos/prediction.md
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@@ -233,7 +233,8 @@ Configuration options:
The `FeedInTariffEnergyCharts` provider uses the raw Energy-Charts day-ahead market price as the
feed-in tariff. It stores prices in `feed_in_tariff_wh` without adding electricity import charges
or VAT. The native Energy-Charts resolution, including quarter-hour data, is retained.
or VAT. The data is loaded from the Energy-Charts `/price` endpoint for the configured bidding
zone. The native Energy-Charts resolution, including quarter-hour data, is retained.
Energy-Charts usually supplies prices only for the published day-ahead period. If that data does
not cover the complete configured prediction horizon, the provider extends it as follows:
@@ -245,13 +246,20 @@ not cover the complete configured prediction horizon, the provider extends it as
The seasonal periods are adjusted to the source resolution. For example, quarter-hour data uses
four values per hour. Values already supplied by Energy-Charts are kept unchanged; only missing
future slots after the last published price are forecast.
future slots after the last published price are forecast. Consequently, a 15-minute optimization
uses four forecast values per hour without converting them to hourly averages.
When direct marketing is enabled, this feed-in-tariff series is passed to the optimizer separately
from the electricity purchase-price series. The successful Energy-Charts path therefore does not
derive the feed-in tariff by subtracting taxes, grid fees, or other charges from an end-customer
electricity price.
Example configuration:
```json
{
"feedintariff": {
"direct_marketing_enabled": true,
"provider": "FeedInTariffEnergyCharts",
"provider_settings": {
"FeedInTariffEnergyCharts": {