Cable replacement project description
In January 2019, we started work to replace an oil-filled cable circuit that runs in the underground tunnel between Beddington and Rowdown substations. We have been doing this by installing a second cable circuit within the existing tunnel that also runs between the two substations, meaning that the oil cable will become redundant.
Like other major utilities and companies, National Grid must ensure the maintenance of safe, efficient, economical and coordinated electricity and gas networks. There are four sites along the route, and therefore there are four main locations for National Grid activity.
These are located at Beddington substation, Lloyd Park headhouse, Kent Gate Way headhouse and Rowdown substation.
Please note, this work will not affect electricity supplies in the area.
We understand our work will cause some inconvenience for the local community, and we will work hard to minimise disruption while we carry out our essential work.
Update Summer 2021
We’re in the latter stages of the project. However, due to delays as a result of the Covid-19 pandemic and the knock-on effect to the supply chain, we expect our work will continue until Spring 2022.
The replacement is complete, and we’ll now concentrate on testing the new cable. We’ll take away the old cable, equipment and materials from our working areas later this year and carry out some reinstatement work, including resurfacing and fence repairs. We’ll then remove our site office cabins from Rowdown substation and stone chippings from a temporary haul road off Mickleham Way which leads to the substation.
This will bring most of our work to an end with only minor electrical works continuing within the substations until Spring 2022.
We’ll keep our site neighbours informed as our work progresses on-site. We’ve also written to political stakeholders, including ward councillors and MPs to update them about the work and new completion date.
If you would like to find out about how National Grid is responding to COVID-19, please visit our How we're responding to coronavirus webpage.