List of nationally significant infrastructure projects in Wales

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{{Use British English|date=May 2025}}{{Use dmy dates|date=May 2025}}

This is a list of nationally significant infrastructure projects in Wales as designated under the Planning Act 2008.

class="wikitable"

| valign="top" |Project name

| valign="top" |Citation

valign="top" |Connah’s Quay Low Carbon Power Project

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valign="top" |Mona Offshore Wind Farm

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valign="top" |Internal Power Generation Enhancement for Port Talbot Steelworks

|{{Cite news |date=2015-12-10 |title=South Wales gas plant approved |url=https://www.theplanner.co.uk/2015/12/10/south-wales-gas-plant-approved |url-status=live |access-date=2025-05-27 |work=The Planner}}

valign="top" |Mynydd y Gwynt Wind Farm

|

valign="top" |Clocaenog Forest Wind Farm

|{{Cite news |date=2014-09-19 |title=Editor's pick: Forest wind farm allowed despite noise concerns |url=https://www.planningresource.co.uk/article/1312145/editors-pick-forest-wind-farm-allowed-despite-noise-concerns |url-status=live |archive-url=http://archive.today/2025.05.27-161610/https://www.planningresource.co.uk/article/1312145/editors-pick-forest-wind-farm-allowed-despite-noise-concerns |archive-date=2025-05-27 |access-date=2025-05-27 |work=Planning Resource}}

valign="top" |Brechfa Forest West Wind Farm

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valign="top" |Awel y Môr Offshore Wind Farm

|{{Cite news |date=2023-09-20 |title=UK gives RWE go-ahead for 1.1GW Awel Y Mor |url=https://renews.biz/88302/uk-gives-rwe-go-ahead-for-11gw-awel-y-mor/ |url-status=live |archive-url=http://archive.today/2025.05.27-161209/https://renews.biz/88302/uk-gives-rwe-go-ahead-for-11gw-awel-y-mor/ |archive-date=2025-05-27 |access-date=2025-05-27 |work=ReNews.biz}}

valign="top" |HyNet Carbon Dioxide Pipeline

|{{Cite news |last=Smith |first=Mark |date=2024-01-08 |title=Planning bosses set to approve landmark hydrogen facility at Stanlow |url=https://www.cheshire-live.co.uk/news/chester-cheshire-news/planning-bosses-set-approve-landmark-28410951 |url-status=live |archive-url=http://archive.today/2025.05.27-204907/https://www.cheshire-live.co.uk/news/chester-cheshire-news/planning-bosses-set-approve-landmark-28410951 |archive-date=2025-05-27 |access-date=2025-05-27 |work=Cheshire Live}}

valign="top" |Hirwaun Power Station

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valign="top" |North Wales Wind Farms Connection

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valign="top" |Tidal Lagoon Swansea Bay

|{{Cite news |last=Denholm-Hall |first=Rupert |date=2014-03-06 |title=Swansea Bay Tidal Lagoon: Planning inspectorate accepts application |url=https://www.walesonline.co.uk/business/business-news/swansea-bay-tidal-lagoon-planning-6781075 |access-date=2025-05-27 |work=Wales Online}}

valign="top" |Glyn Rhonwy Pumped Storage

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valign="top" |Abergelli Power

|{{Cite news |date=2018-01-02 |title=New Abergelli Farm gas power station plans submitted |url=https://www.bbc.co.uk/news/uk-wales-south-west-wales-42541167 |url-status=live |archive-url=https://web.archive.org/web/20190529151559/https://www.bbc.co.uk/news/uk-wales-south-west-wales-42541167 |archive-date=2019-05-29 |access-date=2025-05-27 |work=BBC News}}

valign="top" |Wrexham Energy Centre

|{{Cite news |last=Grieve |first=Jonathan |date=2016-04-15 |title=Revised Wrexham power plant scheme has under soil cabling |url=https://www.leaderlive.co.uk/news/15955218.revised-wrexham-power-plant-scheme-has-under-soil-cabling/ |url-status=live |archive-url=https://web.archive.org/web/20250527205543/https://www.leaderlive.co.uk/news/15955218.revised-wrexham-power-plant-scheme-has-under-soil-cabling/ |archive-date=2025-05-27 |access-date=2025-05-27 |work=The Leader}}

valign="top" |Brechfa Forest Connection

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valign="top" |South Hook Combined Heat & Power Station

|

References