The AEP San Diego Chapter is one of the largest chapters in California, covering San Diego and Imperial Counties, and our membership is still growing. Please explore our website, investigate our benefits, and treat yourself to membership in our organization. Sign up for the mailing list. For the most current events announcements and registration invitations. About 6 days ago. About 24 days ago. Check out Climate Education Partners San Diego 2050 Report, "San Diego, 2050 is Calling. How will we Answer?