---
title: "Connection waiting times (Anschlussdauer) per VNB – median weeks per voltage level and installation type"
method: POST
path: "/api/ewk-monitoring/anschlussdauer"
tags: ["EWK Monitoring (BNetzA)"]
---

# Connection waiting times (Anschlussdauer) per VNB – median weeks per voltage level and installation type

`POST /api/ewk-monitoring/anschlussdauer`

## Request

- Base URL: `https://api.cernion.de`
- URL: `https://api.cernion.de/api/ewk-monitoring/anschlussdauer`
- Auth: none declared

Query BNetzA EWK connection-duration data for German distribution grid operators (VNBs).

**Data source:** [vnb-transparenz.de/EWK-Monitoring-BNetzA](https://www.vnb-transparenz.de/EWK-Monitoring-BNetzA) — self-reported annual data from ~820 VNBs.

**BNetzA indicators covered:**
| Indicator | Description |
|---|---|
| 4.3.1 / 4.3.2 | EE-Anlagen NS – Phase 1 (offer) / Phase 2 (commissioning) |
| 4.3.3 / 4.3.4 | EE-Anlagen MS |
| 4.3.5 / 4.3.6 | EE-Anlagen HS |
| 5.3.1 / 5.3.2 | Verbrauchsanlagen NS (wallboxes, heat pumps, storage) |
| 5.3.3 / 5.3.4 | Verbrauchsanlagen MS |
| 5.3.5 / 5.3.6 | Verbrauchsanlagen HS |

**Use cases:**
- Identify slow-connecting VNBs as consulting/software-sales targets
- §14a EnWG analysis: how quickly does a VNB connect controllable loads?
- §11 EnWG NEST compliance: benchmark a VNB against the national median
- Regulatory reporting: connection-time comparison for BNetzA submissions

## Query parameters

- `token` string

## Request body

- object
  - `vnbName` string: Partial VNB name search (case-insensitive, e.g. "Netze BW", "STROMDAO Netze")
  - `bnr` string: BNetzA operator number for exact lookup
  - `voltageLevel` 'NS' | 'MS' | 'HS' | 'all': Voltage level filter: NS = low voltage, MS = medium voltage, HS = high voltage, all = no filter
  - `installationType` 'EE' | 'Verbrauch' | 'all': Installation type: EE = renewable generation, Verbrauch = consumption (wallboxes, heat pumps, storage), all = no filter
  - `sortBy` 'name' | 'anschlussdauer_asc' | 'anschlussdauer_desc': Sort order: anschlussdauer_asc = fastest first, anschlussdauer_desc = slowest first
  - `limit` integer: Maximum number of VNBs to return
  - `offset` integer: Pagination offset
  - `includeRanking` boolean: Include national ranking (e.g. "42 / 739")
  - `format` 'json' | 'csv' | 'xlsx' | 'xls': Output format. "csv" and "xls"/"xlsx" trigger a file download.
  - `token` string: Optional Cernion MCP token for this request. Overrides CERNION_TOKEN when provided.

## Response `200`

Connection duration data retrieved successfully

---

[API](https://skmtc.dev/cernion/apis/cernion-energy-tools-api.md) · [All operations](https://skmtc.dev/cernion/apis/cernion-energy-tools-api/llms.txt) · [OpenAPI document](https://skmtc.dev/cernion/apis/cernion-energy-tools-api/revisions/cdb94473b538?raw)