More time will be given to allow developers of a rail testing facility in the south of Powys to be able to produce detailed plans for the £150 million scheme.

In April, The Global Centre of Rail Excellence (GCRE) lodged a non-material amendment planning application with Powys County Council so that it can extend the three year time limit to submit a reserved matter planning application for the development at the Nant Helen opencast coal mine, near Ystradgynlais.

Planning agent for GCRE, Fairhurst said: “The principal aim of this non-material amendment application is to allow the applicant additional time to submit all reserved matters whilst not increasing the overall time limit of implementing the consent.”

The overall time limit is five years.

Development management team leader Gemma Bufton explained that the tweaks would need to be considered against four “key tests.”

Ms Bufton said: “As the proposal relates to the wording of the conditions, the local planning authority consider that no third party or body would be disadvantaged and there would be no visual amendments to the scheme.

“The amendments still ensure that development is commenced within five years from the date of the outline consent and the proposal does not conflict with national or the local development plan.”

Due to this Ms Bufton recommended approving the scheme.

As the proposal crosses local authority boundaries, an identical planning application will also need to be approved by Neath Port Talbot council.

At a meeting of Powys County Council’s Planning committee on July 29, 2021, councillors approved the principle of the £150 million train testing centre as they believed the economic benefit outweighed other concerns.

The development will include two electrified test loops. One will be a 4.35 mile high-speed rolling stock track, with a maximum speed of around 110mph with a potential to go up to 125mph.

Other facilities will include a dual-platform test environment, rolling stock storage and maintenance facilities, operations room, staff accommodation and connections to the main line.

There will also be visitor and conference facilities, a business park, and a hotel.

The project was expected to be fully operational by 2025, bringing a potential 300 jobs for the area.