A vehicle-mounted electric storage device of an electrically driven vehicle is charged with a necessary amount of energy, which corresponds to an amount of energy consumption in a next-time running of the electrically driven vehicle, such that a shortage of renewable energy at a charging site is compensated for by charging the electrically driven vehicle with system energy. The planetary-gear transmission 11 comprises a single-pinion first planetary-gear mechanism 12 and a double-pinion second planetary-gear mechanism 13, and reduces power from an electric motor 1a by a desired reduction ratio before transmitting that power to a driven-side rotating shaft 5a. The filament may have a distal end coupled to the anchor and may be configured to extend proximally through the vessel opening andor tissue tract. A cleaning apparatus is provided to clean the surface of the IRE in the pipe and a turbulence generator is provided in the pipe to insure homogeneity of the petroleum being analyzed prior to analysis. A preferred embodiment employs inter-connectable holders that each retain two jewel cases in a side-by-side configuration. Next, the first ceramic base coating is dried so that substantially no moisture is left in the first ceramic base coating.