> ## Documentation Index
> Fetch the complete documentation index at: https://docs.engrate.io/llms.txt
> Use this file to discover all available pages before exploring further.

# Portfolio Forecasts API Overview

> Submit production and consumption forecasts for a delivery day

The Portfolio Forecasts API accepts portfolio production and consumption forecasts for one delivery day.

This is an alpha API. It may change or be removed without notice.

## Submitting a forecast

Submit one or more production or consumption series with `POST /portfolio-forecasts/v1alpha1/submissions`. Tag each series by either a German TSO control area or an eleven-digit MaLo. MaLo-tagged series require a MaLo-to-control-area mapping.

Each series contains one quarter-hourly value from local midnight to midnight. Specify values in MW or MWH. A successful acknowledgment includes the received series and interval counts, daily production and consumption totals in MWh, a content hash, and a `received` status.

Re-submitting a forecast for the same delivery day replaces the previous submission.