---
title: "Siemens Greenlink Interconnector"
description: "The control building and converter transformer area for the HVDC link between Ireland and Wales, in precast twin walls."
url: "https://www.petruf.ie/projects/industrial/siemens-greenlink-interconnector"
---

# Siemens Greenlink Interconnector

> The control building and converter transformer area for the HVDC link between Ireland and Wales, in precast twin walls.

- Sector: [Industrial](https://www.petruf.ie/projects/industrial.md)
- Location: Great Island, Co. Wexford
- Completed: 2022
- Client: Siemens Greenlink
- Customer: Keegan Precast

The Irish end of a high voltage direct current link running from Great Island to Pembroke.

The control building is single storey with a precast composite flat roof. Twin walls hold its lateral stability and carry the floor and the framing, and the filigree units span simply supported onto them with a structural screed over the top.

The converter transformer area is the harder condition: its twin walls are free standing and unbraced in the permanent case, so they were designed to take horizontal load without a diaphragm to lean on. Elsewhere the screeded filigree floor does that job and delivers the load into the shear walls.