  In this paper we place new bounds on CPT violation in the solar neutrino
sector analyzing the results from solar experiments and KamLAND. We also
discuss the sensitivity of the next-generation experiments DUNE and
Hyper-Kamiokande, which will provide accurate measurements of the solar
neutrino oscillation parameters. The joint analysis of both experiments will
further improve the precision due to cancellations in the systematic
uncertainties regarding the solar neutrino flux. In combination with the
next-generation reactor experiment JUNO, the bound on CPT violation in the
solar sector could be improved by one order of magnitude in comparison with
current constraints. The distinguishability among CPT-violating neutrino
oscillations and neutrino non-standard interactions in the solar sector is also
addressed.
