Described is a method for starting up a system for generating electrical power. The carrier structure is composed of at least two releasably interconnected modules. According to the result of investigations on buckling andor crinkling, said effect occurs with different critical bucklingcrinkling loads for membranes of the same shape and dimension, but made of different materials, even when the stiffness of the membranes in their direction of movement\u2014and hence their resonant frequency\u2014is identical. Upon detecting an erroneous condition, an action sequence is executed which may include prevention entry of the wafer carrier, and notifying an operator. The electrooptic chromophore is selected from a substituted aniline, substituted azobenzene, substituted stilbene, or substituted imine.