MKO Web Ready 121


Derrinlough Wind Farm,
Co Offaly

In August 2021, MKO secured planning permission for a wind farm development, on behalf of Bord na Móna Powergen Ltd., located within Bord na Móna’s Clongawny and Drinagh bog properties, at Derrinlough and adjacent townlands, approximately 7km north of Birr, County Offaly. The development comprises 21 no. wind turbines (with an overall blade tip height of 185m) and ancillary infrastructure, a 110kV electricity substation and recreation and amenity facilities.

Derrinlough 3

Derrinlough 2

Derrinlough 1

Project challenges

The Derrinlough Wind Farm development will encompass 21 No. wind turbines up to a tip height of 185 metres and will have a maximum export capacity (MEC) in excess of 85MW. Therefore, the development met the threshold for wind energy set out in the Seventh Schedule of the Planning and Development Acts 2000 to 2023. Therefore, the application was submitted directly to An Bord Pleanála as a Strategic Infrastructure Development (SID) in accordance with Section 37E of the Planning and Development Act 2000 to 2023.

One of the key challenges as part of the application process was to convincingly demonstrate to the Board that, although a section of the development site fell outside the boundaries designated as the Wind Energy Development Area by Offaly County Council, the entire site remained viable for wind energy development. The basis for this determination was outlined in detail in the Environmental Impact Assessment Report submitted with the initial application. Moreover, this assertion was further substantiated in response to the Further Information Request from the Board, where additional information was provided to address any concerns.

The construction phase of the Derrinlough Wind Farm development commenced in February 2023.

Regular process update videos are available on Bord na Móna’s YouTube channel.

Discover more

Main services provided


Planning application and EIAR/NS Coordinators

Management of a large multi-disciplinary team during the preparation and production of the planning application documentation, including all site surveys and investigations.


Planning advice and consultation

Provision of planning advice to the client and management of pre-planning consultation with An Bord Pleanála.


Project design

Input into the design phase of the development alongside the client.


Community consultation

Assistance provided to the client during the community consultation undertaken during the pre-planning phase.


Bird surveying

Coordination and undertaking of over two years of bird surveys in line with best international practice.

Contact us

We’ll support your project at every step, with our expert team providing customised solutions.

Back to Top