# Transmission of the energy and power values measured so far — LF view Once the intra-year allocation start of the LF for a market location has been reached, the NB transmits to the LF the energy values of the market location measured up to that intra-year allocation start and the two highest monthly maximum demand values of the current calendar year. Note: if the intra-year allocation start is before 2 February, only one monthly maximum demand value is transmitted for January. ## Process flow from the perspective of the LF \nSystem diagram: Übermittlung der bisher gemessenen Arbeits- und Leistungswerte — view of LF\n\n\nCustomer backend system\n\nMACO APP · LF\n\nMarket partner\n\n\n\n1. Bisher gemessene\nArbeits- und Leistungswerte\n\nNB\n\nAS4\n13015\n\nAPERAK check: Z10\n\n\nCreate transaction\n\n\nCreate process data\n\nAPI\n"} gesamt={"\nSequence diagram: Übermittlung der bisher gemessenen Arbeits- und Leistungswerte — view of LF\n\n\nBackend (customer)\n\n\nMACO APP · LF\n\n\nNB\n\n\n1. Bisher gemessene Arbeits- und Leistungswerte\nAS4 · PI 13015\n\nCreate transaction\nCreate process data\n"} titel="LF" /> ## Process steps ### Energy and demand values measured so far
**Check identifiers** - [13015](/en/schnittstellen/202610/pruefi/MSCONS/PI_13015) — Energy, max. power calendar year before start of supply · AS4
**Flow**
  1. Message from **NB** · AS4
  2. **APERAK checks** - `13015` → `Z10` — APERAK check: Is location known ?
  3. **Write endpoint** - Transaction created — [Create process data](/en/api/202610/backend-schreiben-lf/createprocessdata#prozessdaten-erstellen) `POST /createProcessData` Try it out Creates a new transaction in the backend with the data of the incoming message.
## Process information Wording of the consolidated version, profile ch. 3.2.1.1, pp. 82–83.
  1. ### Preconditions - This is a consuming market location. - The LF is the payer of the grid usage. - Values from MSB are available at NB. - The intra-year allocation start (via use case „[Start of supply](/en/prozessdoku/202610/LF--LFA/GPKE-Teil2-lieferbeginn)“ or „[Start of the replacement supply / default supply](/en/prozessdoku/202610/LF/GPKE-Teil2-beginn-der-ersatz-grundversorgung)“) has been reached. - The grid usage settlement is based on energy price and demand price. - The information required for the grid usage settlement has been transmitted via the use case „[Billing data grid usage settlement](/en/prozessdoku/202610/LF/GPKE-Teil2-abrechnungsdaten-netznutzungsabrechnung)“.
  2. ### Results A delivery note can be sent.
  3. ### First message **NB** sends “Previously measured energy and demand values” (step 1). From here on, it is the turn of the party involved on this page.
  4. ### Objective The LF has the energy values measured at the market location up to its allocation start and the two highest monthly maximum demand values of the market location in the current calendar year.
## Other views of the process The same process through the eyes of the other parties involved: the same steps, each read from their point of view. - [View NB](/en/prozessdoku/202610/NB/GPKE-Teil2-uebermittlung-der-bisher-gemessenen-arbeits-und-leistungswerte) — NB *The steps are the **possible** messages of this process, not a sequence — the source lists neither conditions nor alternatives. The small box on the step names the own view on the left: with **←** it receives, with **→** it sends. Collapsed steps run between other market partners.*