AES has a special team to cater exclusively to the needs of international attendees for the 2015 AES Annual Meeting. We are proud to provide international attendees with all-inclusive official housing and registration packages.

Register here to receive:

  • All-Inclusive International Group Housing Packages
  • Lowest Official Hotel Rates and Registration Fees available when booking through AES Housing
  • Preferred Hotels Guaranteed once booked
  • Secure Payment Processing and online room block management
  • Dedicated Multilingual Meetings and Conventions Manager from online to onsite
  • Four International Offices offering live chat and technical support in your time zone
  • Help in Facilitating Visa Processing, CME course services, and the dissemination of official authority letters

Information for International Attendees

Consulates and Embassies 

Please check with your local U.S. consulate or embassy to find out the earliest that you may apply for a visa at The visa applications process can take as long as 8 weeks, especially for those countries that are on the State Sponsors of Terrorism List. Attendees from these countries should start the application process at least 6 – 8 months in advance of the Annual Meeting.

Visa Application Information

You may access the AES website for information regarding important timelines and travel to the United States. Disclaimer: Please note that this information is provided in good faith. Regulations may change and the only authoritative sources of information are the U.S.Government websites at and

Letter of Invitation

For security purposes, letters of invitation can only be sent to individuals registered for the Annual Meeting. Please check the appropriate box online when completing your registration. A letter will be sent to your email after your registration is completed. Send any related questions to

Banking and Currency exchange

Banking hours in the United States are generally Monday to Friday, 9:00 a.m. – 4:00 p.m. Select banks are open on Saturday. Several banking institutions are within walking distance of the Convention Center.

Time Zone

During the month of December, Philadelphia operates in the Eastern Standard Time Zone (GMT – 5 hours).

Other helpful information

Voltage in the United States is 120 (60 HZ). Outlet sockets use either a Type A plug which is a Class II ungrounded plug with two flat parallel prongs, or a Type B plug which is a Class I plug with two flat parallel prongs and a grounding pin. European appliances will require a voltage transformer.

Gratuities are not automatically added to restaurant bills, except in some cases for large groups. If satisfied with your service, waiters and waitresses generally are tipped 15% to 20% of the bill. Additional suggestions regarding tipping: $1 per bag for skycaps and porters; 15% of the fare for taxi drivers; $2 per night for hotel housekeepers; and $2 per service for doormen.