Abstract: A comparison system includes: a first acquisition unit which acquires a first input/output electrical power amount of a first electrical power device including a first terminal, the first input/output electrical power amount being an input/output electrical power amount more on a side of the first electrical power device than the first terminal; a second acquisition unit which acquires a second input/output electrical power amount of a second electrical power device including a second terminal attachable to the first terminal, the second input/output electrical power amount being an input/output electrical power amount more on a side of the second electrical power device than the second terminal; and a comparison unit which compares the first input/output electrical power amount and the second input/output electrical power amount when input/output of electrical power is performed between the first and second electrical power device while the first and second terminal are attached to each other.

Abstract: In a control method of a stocking apparatus, the stocking apparatus includes a plurality of housings formed separately and independently. Each of the plurality of housings includes a plurality of stockers, each of which stocks an item. The control method comprises: acquiring a demand number which is a number of at least one item being the item to be received by the stocking apparatus from a utilizer of the stocking apparatus or a number of at least one item being the item to be provided by the stocking apparatus to the utilizer of the stocking apparatus; and determining a receiving-and-providing stocker which is at least at least one of the plurality of stockers of the plurality of housings and receives the item from the utilizer or provides the item to the utilizer, based on the demand number.

Abstract: A temperature of a power device to which a power storage device is attached is estimated on the basis of a temperature detected by a temperature detector provided in a power storage device detachably held in the power device.

Abstract: An acquirer acquires an observed amount related to at least one of an operation amount of a power device or an environmental state of the power device, the power device including an electric operation unit accommodated in a housing and a wind generation unit that supports a flow of air inside and outside of the housing, a comparator compares the observed amount acquired by the acquirer with a reference amount, and a determiner determines an abnormal change in the power device on the basis of a result of comparing the observed amount with the reference amount in the comparator.

Abstract: An information acquisition device includes an attachment/detachment information acquisition unit configured to acquire, regarding a first terminal provided in a power storage device and a second terminal provided in an electrical power device and is configured to be attachable/detachable to/from the first terminal, a number of times of attachment/detachment between the first terminal and the second terminal. An estimation device includes an estimation unit configured to estimate, regarding a first terminal provided in a power storage device and a second terminal provided in an electrical power device and is configured to be attachable/detachable to/from the first terminal, a deterioration degree of at least one of the first terminal or the second terminal.

Abstract: A frame structure of an electric vehicle including right and left drive wheels is capable of being simplified while communalizing components and achieving an efficient arrangement of a running gear and electrical components. An electric vehicle includes a running gear including an electromotor and a speed reduction gear, and a running gear support frame provided to surround the running gear. The speed reduction gear is arranged in the right-to-left center of a vehicle body. The electromotor is configured in such a manner that an axis direction is arranged along a vehicle right-to-left direction so that the electromotor extends to one side in a right-to-left direction of the speed reduction gear and is arranged between the speed reduction gear and a left lower side frame of the running gear support frame.

Abstract: A frame structure of an electric vehicle including right and left drive wheels is capable of being simplified while communalizing components and achieving an efficient arrangement of a running gear and electrical components. An electric vehicle includes a running gear including an electromotor and a speed reduction gear, and a running gear support frame provided to surround the running gear. The speed reduction gear is arranged in the right-to-left center of a vehicle body. The electromotor is configured in such a manner that an axis direction is arranged along a vehicle right-to-left direction so that the electromotor extends to one side in a right-to-left direction of the speed reduction gear and is arranged between the speed reduction gear and a left lower side frame of the running gear support frame.

Abstract: A solar cell module is provided in which production efficiency and reliability are improved by realizing wire connection without complicating wiring from the solar cell element to the terminal box, in a solar cell module having a glass-facing-glass structure. The solar cell module includes a square substrate on which a solar cell element is formed on one surface thereof, a cathode arranged on one end side part of the square substrate, an anode arranged on the other side part of the square substrate, and two terminal boxes arranged on the other surface of the square substrate, which is the opposite surface of the solar cell element side, wherein the one terminal box is connected to the cathode and two cathode cables are drawn from this terminal box, and the other terminal box is connected to the anode and two anode cables are drawn from this terminal box.