Summary Two electromagnetic power generators were designed and built with the purpose of creating a safe, noncarbon emitting, and long-lasting source of energy. Prototype A has 20 coils and B has 10 coils. Each one has 2 flywheels, a second-hand ferrite magnet that spins over the horizontal plane (lateral axis), and neodymium magnets (NdFeB). A literature review is provided covering the origins of the first direct current generators up to the most widely used contemporary alternating current power generators, comparing them with both prototypes. These were compared with each other to determine which performs better by making mathematical projections and checking them experimentally. The prototypes are based on an innovative configuration for mechanical energy conversion, which supplies power every time the system is in motion. The harvested energy has shown results—in terms of output power, power density, and specific power—which depend on several factors, such as the mechanical force induced and the period of time they remain spinning by the flywheels. The different parameters of the systems, which include connections, structure details, spinning plane, experimental results, and materials, are specified. Advantages and disadvantages are also analyzed, including some immediate real-life applications. The designs have been improved by changing the shape of the coils and magnets as a whole to create enduring power systems.