Peter McLay


Peter is a Partner in our Energy and Natural Resources practice, advising on Irish and European law and regulation applicable to Irish energy projects.

He advises project sponsors, lenders, utilities and regulatory authorities in relation to all aspects of the Irish electricity, natural gas and petroleum sectors, as well as related areas of law such as environmental permitting and energy efficiency obligations. Peter also advises large energy consumers on efficient and diverse procurement strategies.

Peter has advised in relation to major Irish thermal and renewable, onshore and offshore, electricity generation projects, as well as the development of an Irish LNG gasification terminal.


  • Energy and natural resources
  • Projects and infrastructure 
  • Regulated industries 

Representative Matters

  • Advising generators, utilities and lenders (in respect of connected wind farms having aggregate installed capacity of c.850MW) in connection with the go-live of the new I-SEM electricity trading arrangements in the Single Electricity Market in late September 2018, and the new commercial arrangements required as a consequence.
  • Assisting a number of electricity trading houses with the preparation of template contracts to facilitate their provision of electricity trading and balancing services to Irish participants in the Single Electricity Market following I-SEM go-live.
  • Acted for Element Power in the sale of its Irish and UK onshore wind development operations, including approximately 1,550MW of projects, to Norwegian state-owned utility Statkraft AS.


Legal 500, 2021

Peter is a ‘Recommended Lawyer’

Chambers & Partners, 2021

'Band 3 Lawyer', Peter McLay ‘is a recognised figure in the market, with notable experience in regulatory matters’.

Speaking Engagements & Teaching

Presenting “Ireland – energy update 2015” at European Energy Day, Hamburg, November 2015

Clean Energy Package: an Electricity Market Redesign” – presentation for Energy Law Ireland, Dublin, June 2017

  • LinkedIn

Areas of Expertise

Energy, Utilities & Projects Renewable Energy Conventional Energy Infrastructure and Project Finance Data Centres

Professional Memberships

Law Society of Ireland

Irish Wind Energy Association (IWEA)


University of Canterbury (Christchurch, New Zealand), LLB / BA (Economics)

University College Dublin, MA (Economics)