process: this is what the second law of thermodynamics states. A reason must be sought in the irreversible nature of any thermodynamic transformation. As consequence, energy is always wasted in a quantity that strictly depends on the physical or chemical processes governing the system and, usually, in the form of thermal dispersions, mechanical vibrations, and electromagnetic radiations. Several approaches for reducing energy losses have been conceived and, nowadays, many energy recovery, harvesting, and conversion systems are investigated, many of them being already available on the market. Energy harvesting is defined as the process wherein the sources such as mechanical load, vibrations, temperature gradients, heat, light, salinity gradients, and wind are scavenged and converted to obtain relatively small levels of power in the nW-mW range. [1] According to the field of interest, energy-harvesting systems differ in the working principles and the employed materials, as a direct consequence of the physical effects exploited for the energy conversion. For example, in the industrial, domestic, and automotive applications, the thermoelectric generators (TEGs) are widely used, while in the wearable and Internet of Things (IoT) sectors, piezoelectric, pyroelectric and triboelectric devices find their space. [2] More recently, in order to increase the energy efficiency and the autonomy level of intelligent robots, harvesting energy from the external environment and internal subsystems has become fundamental. [3][4][5] In particular, with the advent of soft robots, composed of highly compliant materials similar to those found in living organisms, [6] energy harvesting from many sources has been explored, mainly for mobility purposes. [7,8] Advancements of materials science and cybernetic systems technology in the field of Smart Fluid Systems (SFS) show that, compared to conventional robotic systems, colloid-based robots offer advantages in versatility, adaptability, resiliency, distributed architecture, and autonomy especially for applications in harsh environments, both space and terrestrial. [9] Colloidal devices at the liquid state represent a new paradigm in the field of cybernetic systems, joining the versatility of conventional robotics and the advantages of soft robotics. Here, energy harvesting, storage, and management capabilities cover an essential role. [10] For this purpose, the engineering feasibility of an energy harvesting and storage system applicable to SFS, named Colloidal EneRgEtic System (CERES), has been assessed. [10] Colloids are complex condensed matter agents lying at the boundary between completely homogeneous systems such as solutions and completely Owing to the waste of energy originated by any physical or chemical process, approaches for reducing the energy losses have been conceived and, nowadays, energy recovery and conversion systems represent a worldwide-recognized solution. The advent of colloidal-based cybernetic systems highlights the essential role of energy harvesting, storage, and...