This Meeting Report summarises a workshop held in November 2005, which brought together researchers working within the International Energy Agency’s ETSAP network of MARKAL model users, with a broad range of practitioners from the UK energy modelling community.

This opportunity for the two modelling communities to learn from each other’s work was enabled by the UK hosting the regular ETSAP semi-annual meeting which discussed modelling issues related to the MARKAL / TIMES family of energy models on subsequent days.