  Cosmic rays in the inner solar system are subject to deflection by both the
geomagnetic and interplanetary magnetic fields, and simultaneously interact
with the Sun's photosphere resulting in the production of gamma rays. This
phenomenon can be studied by observing the deficit ("shadow") in the cosmic ray
flux from the direction of the Sun and searching for an excess photon signal
above the isotropic background. The High Altitude Water Cherenkov (HAWC)
Observatory in Mexico has been taking data on the solar disk at TeV energies
since the end of 2014. We present our first efforts to estimate the luminosity
of TeV gamma rays from the Sun which can be used to place limits on the
production mechanisms, including astrophysical processes and beyond the
standard model predictions.
