Dónal is a senior consultant in KPMG Sustainable Futures and part of the energy advisory team. Dónal specialises in biomethane and also works on a broad range of topics including decarbonisation, energy engineering, and sustainable fuels. Recently, Dónal completed his PhD thesis with MaREI in 2023, titled “Optimising the logistics of on-farm anaerobic digestion systems in Ireland”, and has previously worked as an energy consultant and research analyst.