Do we use IEA electricity factors?

We largely use other reputable sources given IEA requires entering a commercial agreement to use theirs.

We prioritise reputable, ideally government sources for geographically specific electricity emissions factors. 

DEFRA (UK Government) is used for UK, National Greenhouse Accounts (Australian Government) for Australia, and the New Zealand Government for New Zealand.

For other countries we use a mix of reputable sources such as IRENA, IGES and EEA, and the US EPA.