> For the complete documentation index, see [llms.txt](https://docs.voltmasters.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.voltmasters.io/dso-rtu/grid-operators/sibelga.md). # Sibelga Sibelga is the distribution grid operator for the Brussels-Capital Region. The Voltmasters EMS supports DSO RTU with Sibelga. To use it, set the telecontrole provider to **Sibelga** under **Configuration → Grid & market → DSO RTU settings**. ### How it works Sibelga conveys its grid states to the installation through **switch positions**: the Sibelga RTU drives dry-contact outputs whose positions represent the current grid instruction. These contacts are wired to the **inputs of the IO extension module** on the controller, and each input is mapped to the corresponding grid state during commissioning. The EMS then applies the curtailment for the active state to PV, batteries, EV charging and loads, exactly as for any other operator — only the way the state is received differs. See [IO extension](/dso-rtu/io-extension.md) and [Installing the IO modules](/dso-rtu/io-module-installation.md) for the physical wiring, and [RTU connection](/dso-rtu/rtu-connection.md) for the on-site connection and network requirements. --- # Agent Instructions This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com. ## Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter: ``` GET https://docs.voltmasters.io/dso-rtu/grid-operators/sibelga.md?ask=&goal= ``` `ask` is the immediate question: it should be specific, self-contained, and written in natural language. `goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.