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Energy, Infrastructure and Construction

Our Energy, Infrastructure and Construction Group is the largest dedicated energy, infrastructure and construction practice in the Irish market.

Matheson’s Energy, Infrastructure and Construction (EIC) Group is the largest dedicated team of its kind in the Irish market and advises on the development, operation, financing, purchase, sale and regulatory aspects of all large-scale energy, infrastructure and construction projects in Ireland.

Our lawyers are uniquely positioned to advise clients on the opportunities and challenges presented by large-scale infrastructure, energy and construction projects, with specialised experience in permitting, contract negotiation, risk allocation, development structuring, project and acquisition financing, transactional matters, corporate law and governance matters and day-to-day operational and regulatory advice.

This group is the largest dedicated practice of its kind in the Irish market and our lawyers are consistently mandated on the most high-profile, complex and high value transactions in both the domestic and cross-border markets.  Both our teams and our lawyers are ranked as market leaders in the most prestigious international legal directories (Chambers, Legal 500 and IFLR1000).

Our team‘s experience and in-depth knowledge spans the following sectors:

  • Renewables
  • Social Infrastructure
  • Commercial and Residential Development
  • Offshore and Maritime Infrastructure
  • Digital Infrastructure
  • Power
  • Transport
  • Industrial Facilities
  • Energy Storage
  • Mining
  • Waste
  • Water
  • Oil and Gas

Energy, Natural Resources and Utilities

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Infrastructure and Construction

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Experience Highlights

The EIC team has advised:

  • Kanadevia Inova, on the agreement to acquire the operator of the Dublin Waste to Energy Facility (Encyclis Ireland Operations Limited) and on its major upgrade of this state of the art WtE facility.
  • Octopus Renewables, one of the largest owners and managers of renewable energy assets in Europe, on its significant minority stake, and follow on investments, in Simply Blue Group, a marine project developer focused on early stage floating wind projects.
  • A major Irish all-island utility company on its joint venture partnership for the co-development of off-shore wind projects.
  • Cellnex on the sale of its Irish business, which is Ireland’s largest telecoms tower company.
  • Asterion Industrial Partners on its acquisition of an 80% stake in the National Broadband Plan for Ireland.
  • Bord na Mona in relation to its development and project financing of – the 105MW Derrinlough windfarm; the 75MW Cloncreen windfarm; and the Cloncreen Battery Storage Project.
  • Ballymore-Oxley on all legal aspects of their development of Dublin Landings and Connolly Quarter (both high density urban core residential, commercial and retail with capex circa €300 million).
  • A sponsor on its bid for the Dublin Family Courts Complex PPP.
  • Lenders on the financing of a number of Irish data centres operated and developed by K2 Data Centres (a Kuok Group Company).
  • Rabobank as lender to Ib Vogt / Highfield on the development and financing of four Irish solar farms (Rathnaskilloge, Gaskinstown, Clonin North and North Arklow) with a combined generating capacity of around 280MW.
  • EirGrid in relation to a number of its electricity interconnector projects including its joint venture with Réseau de Transport d’Electricité SA for development of the Celtic Interconnector.
  • Offshore wind developers, investors, lenders and contractors on permitting, joint ventures and ‘stress testing’ of regulatory applications for over 2GW of Irish offshore wind capacity to be delivered over the next 5-10 years.
  • Bremore Ireland Port on the development of a new deepwater multi-model port north of Dublin to serve amongst other things as an offshore wind O&M support facility.
  • Asterion on its acquisition of 80% of the National Broadband Plan project, a €3 billion State intervention to deliver high speed broadband (primarily by FTTH) to all underserved homes and business in Ireland, along with on-going advice on the operation and roll-out of the National Broadband Plan.
  • Hines on all legal aspects of its development of a new town at Cherrywood in Dublin (to include transport and utility infrastructure, residential, commercial and retail elements) as well as Hines’ other mixed use high density developments in Dublin.
  • The sponsor in relation to all aspects of the Greystones Harbour PPP project, including the development of a new harbour and marina coupled with commercial and residential development.
  • MYTILINEOS Energy&Metals in relation to its Corporate PPAs with Keppel DC REIT.
  • Octopus Renewables on its acquisition, development and project financing of the Ballymacarney and Harlockstown solar projects (aggregate capacity of 250 MW).
  • EirGrid on various complex offshore electricity arrangements.
  • A bidder on all aspects of its bid on Dublin Metrolink.
  • A sponsor on its bid for the Dublin Family Courts Complex PPP.
  • We have extensive experience advising data centre developers and owners on their development, construction and operation, including advising on all energy, environmental and permitting for data centres in Ireland as well as on their energy procurement and trading arrangements.

Insights and News

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Insights
06/02/2026

Large energy users connection policy decision

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News
14/01/2026

Matheson welcomes nine partners across nine practice areas

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News
18/09/2025

Matheson Signs Landmark Corporate Power Purchase Agreement with Flogas

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Insights
15/08/2025

Private Wires Policy: Unlocking Private Electricity Infrastructure

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Insights
11/08/2025

Infrastructure Update 2025: Recent Policy Developments

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Insights
16/05/2025

Tenderbids Limited v Electrical Waste Management Limited

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Insights
16/05/2025

Force Majeure in Construction Contracts

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Insights
13/05/2025

Climate Action Plan 2025

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Accolades

“Matheson is very responsive and commercially minded.”

Projects: Chambers Europe

2025

Our Team

Enda

Garvey

Partner

Kate

McKenna

Partner

Muireann

Hernon

Partner

Garret

Farrelly

Partner

Conor

Blennerhassett

Partner

Owen

Collins

Partner

Mary Liz

Mahony

Partner

Ruadhán

Kenny

Partner

Cillian

O'Boyle

Partner

David

O'Mahony

Partner

Hilda

Wrixon

Partner

Maeve

Delargy

Partner

George

Brady

Partner

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