The need for transmission expansion and development of proper plans is driven by resource develop- ment, which is often determined by policy makers and independent market participants. This panel will discuss the reasons behind transmission expansion and how optimal plans are developed. The session will provide an update on Order 1000 as a backdrop and then discuss planning techniques that measure the true value of transmission. New applications of HVDC and FACTS are next discussed as a means of providing flexible expansion of the network. Finally, the role of storage and demand resources as ways of providing ancillary services and securing the network for N-1-1 contingencies will be discussed.