For leading businesses and institutions involved in the energy sector, membership in the HAEE is automatically combined with membership in the IAEE. The combined membership dues include € 2.500 a year and a one-off registration payment of €500. Membership through an Affiliate is on a calendar year basis. Please make sure that you have completed the registration process via HAEE website on due time, as the enrollment of the members to the IAEE takes place twice a year, January 31 and March 15.

Individuals may join the HAEE directly and the IAEE through the HAEE by selecting the HAEE/IAEE combined membership. HAEE, as the Greek Affiliate, will collect the dues and forward them to Headquarters (IAEE) to establish membership. At the beginning of each year the Headquarters (IAEE) bills the Affiliate (HAEE) for the dues of its IAEE members. The combined membership dues include €230 a year and a one-off registration fee of €50. Membership through an Affiliate is on a calendar year basis. Please make sure that you have completed the registration process via HAEE website on due time, as the enrollment of the members to the IAEE takes place twice a year, January 31 and March 15.

Students may join the HAEE directly and the IAEE through the HAEE by selecting the HAEE/IAEE combined membership. HAEE as the Greek Affiliate will collect the dues and forward them to Headquarters (IAEE) to establish membership. At the beginning of each year the Headquarters (IAEE) bills the Affiliate (HAEE) for the dues of its IAEE student members. The combined student membership dues include €150 a year and a one-off registration fee of €50. Student membership through an Affiliate is on a calendar year basis. Please make sure that you have completed the registration process via HAEE website on due time, as the enrollment of the student members to the IAEE takes place twice a year, January 31 and March 15.

Individuals may join exclusively the Hellenic Association for Energy Economics. HAEE membership dues include €100 a year and a one-off registration fee of €50. HAEE memberships run twelve months from the date of receipt of a new member's dues.

Students may join exclusively the Hellenic Association for Energy Economics. HAEE membership dues include €60 a year and a one-off registration fee of €40. HAEE memberships run twelve months from the date of receipt of a new student member's dues.