Abstract-This paper presents the series of shaking table tests performed on a new electricity-generating Tuned Mass Damper (TMD) called to as Tuned Mass Piezo-Damper (TMPD), which intends to harvest electric power using the vibrational energy of the structure on which it is attached. The tests were conducted to verify the operational and electricity generation efficiency of the TMPD considering various dispositions of the piezocomposite elements that replace the damper part of the TMD. The results are presented and further improvements are discussed.