  Sphaleron is a non-perturbative solution of electroweak gauge theories, which
is crucially important for the scenario of electroweak baryogenesis. The
sphaleron energy depends on details of the mechanism for the electroweak
symmetry breaking. We find that in many of new physics models the deviation of
the sphaleron energy from the prediction in the standard model is proportional
to that of the triple Higgs boson coupling with opposite signs. This
interesting relation would be useful to determine the sphaleron energy by
measuring this couplings at future collider experiments.
