2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/170717We show that Casimir energy for a configuration of parallel plates gravitates according to the equivalence principle both for the finite and divergent parts. This shows that the latter can be absorbed by a process of renormalization.Parallel talk at ICHEP08, Philadelphia, USA, July 2008. 4 pages, LaTeX. Changes are cosmetic only, to conform to new ICHEP requirementsHigh Energy Physics - TheoryGeneral Relativity and Quantum CosmologyQuantum Physicstext