3 ms·> Solar PV is the only way to make electricity with no moving parts RTGby voidUpdate 2y ago> Solar PV is the only way to make electricity with no moving parts RTGadrianN 2y agoThere are also betavoltaic devices, but neither are relevant in the energy market.hactually 2y agoTo expand on this, the Radioisotope thermoelectric generator also meets the criteria of no moving parts.