Vehicles encounter various road irregularities, resulting in a significant dissipation of energy attributed to the vibration phenomenon. This research investigates the energy recovery potential of the suspension system, using the development of a mathematical model for a half-vehicle and simulation software to validate the results by comparing it with other research in this direction. In the context of harmonic disturbances, several parameters such as amplitude, frequency and speed are carefully considered. Different types of roads are studied according to their excitations for random disturbances, which are input values for our suspension system. The results reveal that the power spectral density increases with road amplitude and roughness. As speed increases, the power spectral density also increases as the coefficients of our half-vehicle suspension at spring and damper level increase, showing that front suspension dissipates more power than rear suspension by a value ranging from 7 × 10^(−5)(Mag^2)/(rad/s) up to 20 × 10^(−5)(Mag^2)/(rad/s), which affirms the need for energy recovery by adapting a feasible suspension model, reliable and much more efficient in order to minimize daily loads and be in balance with the environment as much as possible. Suspension performance can be improved depending on variations in several factors and design parameters which illustrate the good potential performance of energy recovery suspension.