At the moment, the development of alternative low-power renewable sources of electricity, that do not affect the environment, that is, generating "green" energy, is a relevant scientific and technical task. One of the ways to solve this task is to use various methods and approaches for converting different types of energy into electrical energy. The most relevant and promising are those systems and devices that can run anywhere with easy installation process. Such type of devices partially or fully covers the electricity needs of various objects. The aim of the current research is to study the process of generating electricity by power generating paving slabs - an alternative, renewable source of electricity, depending on the wiring pattern of stepping motors to its electric machine node and on their quantity. Authors use methods for processing experimental studies, methods for the theory of electrical machines and electric drives, as well as methods for calculating electrical circuits for the current research. Authors present a prototype of an energy-generating slab with an electro machine unit that can operate with one or two stepper motors. The results of experimental studies are curves of the dependence of voltage on time. Because of the processing of the obtained experimental data, authors show and describe the graphs of power versus time. Experiments have shown that connecting two stepper motors to an electro machine unit of an energy generating slab makes it possible to increase the value of the generated electricity by about 3.9 times. When pressure is applying to a power-generating slab with a force approximately equal to one average person’s step, the device generates approximately 1.16 W of electricity. The amount of generated energy is more dependent not on the weight of the person, but on how quickly the step is performed. The faster the pace of walking and the sharper the steps, the more energy is generated. It is possible to estimate the potential of the power generating paving slabs as an alternative source of energy, taking into account the data obtained from experimental studies and knowing the density of the humans flow.