National infrastructure projects in the UK

The biggest schemes in the country are decided nationally, not by your council: solar and wind farms, reservoirs, roads, railways, power lines and pipelines. Here they are, with each one's stage and site boundary.

34 projects in play in Wales, including 14 at pre-application.

Guides: national infrastructure projects explained · how to have your say

Is there a national project near you?

Every project in play

SectorNationRegion

Pre-application
In the formal process
Approved
Decision made

34 projects

Decision dueSolar farm

Glyn Taff Solar Farm

Wales

Decision dueOnshore wind

Trecelyn Wind Farm

Wales

ExaminationOnshore wind

Mynydd Llanhilleth Resubmission

Wales

ExaminationOnshore wind

Mynydd y Gaer Wind Farm

Wales

ExaminationOnshore wind

Nant Mithil Energy Park

Wales

ExaminationSolar farm

Pendderi Road Solar Farm

Wales

ExaminationSolar farm

White House Farm

Wales

SubmittedOnshore wind

Banc Du Energy Park

Wales

SubmittedOnshore wind

Bryn Cadwgan Energy Park

Wales

SubmittedOnshore wind

Llanwonno Energy

Wales

SubmittedSolar farm

Penllergaer Estate Solar Farm

Wales

SubmittedElectricity lines

Upper Ogmore Grid Connection

Wales

Pre-applicationOnshore wind

Aberedw Energy Park

Offshore

Pre-applicationOnshore wind

Bryn Gillwern Energy Park

Wales

Pre-applicationOnshore wind

Calon y Gwynt Energy Park

Wales

Pre-applicationSolar farm

Craig Y Perthi Resubmission

Wales

Pre-applicationOnshore wind

Fferm Wynt Nant y Maen Wind Farm

Wales

Pre-applicationOnshore wind

Glanllynfi Garth Wind Farm

Offshore

Pre-applicationOnshore wind

Gywtherin

Wales

Pre-applicationDevelopment of National Significance

Kronospan Low Carbon CHP

Wales

Pre-applicationOnshore wind

Moel Chwa Energy Park

Wales

Pre-applicationOnshore wind

Mynydd Tryfan

Wales

Pre-applicationDevelopment of National Significance

Prosiect Egni Glan Llynfi

Wales

Pre-applicationOnshore wind

Rhiwlas Energy Park

Wales

Pre-applicationSolar farm

St Asaph Solar

Wales

Pre-applicationOnshore wind

Upper Lliw Energy

Wales

ApprovedSolar farm

Alleston Solar Farm

Wales

ApprovedSolar farm

Cil-Lonydd Solar Farm

Offshore

RefusedOnshore wind

Convatec Green Manufacturing Hub Rhymney

Offshore

ApprovedOnshore wind

Dragon Energy Park

Wales

ApprovedElectricity lines

Foel Trawsnant Wind Farm Grid Connection

Wales

ApprovedSolar farm

Gwenlais Solar

Wales

ApprovedSolar farm

Parc Worlton Solar Farm

Wales

RefusedElectricity lines

Peaking Plant Nwy Chwarel Seiont / Seiont Quarry Gas Peaking Plant

Wales

How national projects are decided

Projects above certain sizes, such as a solar farm over 100 megawatts, a reservoir holding over 30 million cubic metres or a new motorway, are "nationally significant". The promoter consults locally, then applies for a development consent order. An independent panel examines the application and recommends a decision, and the Secretary of State decides. Councils are consulted but do not decide.

"In play" means at pre-application, in the formal process, or decided in the last three years.

Housing schemes, however large, are decided by the council. See the largest housing developments in planning.