DENS envisions a world in which sustainable energy is the standard. Our mission is to accelerate the world's energy transition by developing & building epic machines which store and regenerate renewable energy regardless of time and place. We propose formic acid (FA) as the solution to store and transport renewable energy, thereby carrying the energy transition forward. FA is an energy dense and liquid energy carrier, consisting of CO2 and H2O. If produced with renewable electricity, FA is carbon neutral and does not lead to harmful emissions. Moreover, FA can easily be stored and transported due to its liquid form. FA is especially well suited to power applications with high power consumption or that operate in remote locations, such as generators, heavy transport, industry and heavy duty equipment.