  Increasing the energy of the LHC would require a ring of \sim20 T magnets
using the superconductors Nb3Sn and Bi-2212/Ag. The technology for Bi-2212/Ag
wire, cable, and coil has advanced significantly but is still far short of the
performance needed for such magnets. New technol-ogy for both wire and cable is
under development, which if successful would yield the needed performance.
