In order to obtain a Power of Attorney at this Consulate General you will need to download the form and present it to the Consulate once completed together with your current passport. You will also need to pay the fee of $51.95 (cash only).
Once you have presented the application and have paid the fee, you will need to book an appointment.
We will also need to know what type of Power of Attorney you require, for example litigations, general, sale, purchase, acceptance of inheritance, etc.
If you live outside of Sydney, alternatively, the procedure is as follows: You can obtain a Power of Attorney through an Australian Public Notary. For recognition in Spain you will need to have it translated into Spanish by an official translator and take it to Foreign Affairs to be stamped with the Apostille of The Hague.