For leading businesses and institutions involved in the energy sector, membership in the HAEE is automatically combined with membership in the International Association for Energy Economics (IAEE).

Individuals may join the HAEE directly and the International Association for Energy Economics (IAEE) through the HAEE by selecting the HAEE/IAEE combined membership.

Students may join the HAEE directly and the International Association for Energy Economics (IAEE) through the HAEE by selecting the HAEE/IAEE combined membership.

Individuals may join exclusively the Hellenic Association for Energy Economics. 

Students may join exclusively the Hellenic Association for Energy Economics.