  Motive and electrical energy has played a crucial role in human civilization.
Since Ancient times, motive energy played a primary role in agricultural and
industrial production as well as transportation. At that time, motive energy
was provided by work of humans and draft animals. Later, work of water and wind
power was harnessed. During the 19$^{\text{th}}$ century, steam power became
the main source of motive energy in USA and Britain. Modern transportation and
industry depend on the work of heat engines that use fossil fuel. A brief
history of different sources of energy is presented in this work. The energy
consumptions in pre-industrial and industrial societies are calculated. The
lost opportunities for the Second Industrial Revolution (such as fast breeder
reactors and thermonuclear power stations) are discussed. The case that the
Solar Power will become the main source of energy by the second half of this
century is presented. It is calculated that the Solar Power has the potential
to bring about the new Industrial Revolution. Based on material and energy
resources available in the Solar System, it is demonstrated that the Solar
System Civilization supporting a population of 10 Quadrillion with a high
standard of living is possible.
