This paper describes the requirements for a standardised hosting capacity method. It outlines the needs and requirements for a standardised methodology as well as ongoing and upcoming standardisation activities in IEEE and IEC. The paper outlines the criteria for consensus, transparency, interoperability and stability required from a standardised hosting capacity method. The use of IEC 61968/61970 Common Grid Model Exchange Specification is proposed as a basis for reproducibility and benchmarking of results across network operators, countries, regions and network design methods.