Unwaith y caiff ei sefydlu, bydd yn cynnig cyngor ar seilwaith economaidd ac amgylcheddol yng Nghymru, gan gynnwys ynni, trafnidiaeth, dŵr a charthffosiaeth, draenio, cyfathrebu digidol a rheoli llifogydd.
Once up and running it will provide technical expert advice on decisions around all economic and environmental infrastructure in Wales  including energy, transport, water and sewerage, drainage, digital communications and flood management.