Disclosed is an electric power system including a first unit (for example, a unit 201) equipped with a first power source (for example, a solar panel (201b)), a first rechargeable battery (for example, a unit storage battery (201c)) to which an output of the first power source is input, and a first
Disclosed is an electric power system including a first unit (for example, a unit 201) equipped with a first power source (for example, a solar panel (201b)), a first rechargeable battery (for example, a unit storage battery (201c)) to which an output of the first power source is input, and a first power consuming portion (not shown) to which an output of the first rechargeable battery is input; a second rechargeable battery (for example, a shared storage battery (202)); and an electric power line (for example, a shared electric power line (203)) for sharing electric power between the first rechargeable battery and the second rechargeable battery.
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1. An electric power system connected with commercial electric power, comprising; a first unit equipped with a first power source, a first rechargeable battery to which an output of the first power source and power form the commercial electric power are input, a controller, and a first power consumi
1. An electric power system connected with commercial electric power, comprising; a first unit equipped with a first power source, a first rechargeable battery to which an output of the first power source and power form the commercial electric power are input, a controller, and a first power consuming portion to which an output of the first rechargeable battery is input;a second unit equipped with a second power source, a second rechargeable battery to which an output of the second power source and power form the commercial electric power are input, and a second power consuming portion to which an output of the second rechargeable battery is input; anda first electric power line for sharing electric power directly between the first rechargeable battery and the second rechargeable battery, wherein the electric power is directly transmitted from the first rechargeable battery to the second battery and vice versa through the first electric power line which is controlled by the controller,wherein the controller is arranged to control electric power transmission directly from the first rechargeable battery to the second rechargeable battery and vice versa through the first electric power line depending on whether or not a present time is in a midnight power rate time slot of the commercial electric power. 2. The electric power system according to claim 1, wherein the first and second power sources are solar panels. 3. The electric power system according to claim 1, wherein the first and second power sources are electric power monitoring portions provided with commercial electric power, respectively. 4. The electric power system according to claim 3, further comprising a first electric power converting portion that converts an input from the commercial electric power into DC power and outputs the DC power to the first rechargeable battery. 5. The electric power system according to claim 1, wherein the first power consuming portion includes a DC power consuming portion. 6. The electric power system according to claim 5, wherein the DC power consuming portion is an LED lighting fixture. 7. The electric power system according to claim 1, wherein the first power consuming portion includes an AC power consuming portion. 8. The electric power system according to claim 7, further comprising a second electric power converting portion that converts an output from the first rechargeable battery into AC power and outputs the AC power to the AC power consuming portion. 9. The electric power system according to claim 1, further comprising a third rechargeable battery that is connected to the first electric power line and can interchange electric power with the first and second rechargeable batteries. 10. The electric power system according to claim 1, wherein the first unit and the second unit are separate homes of individual persons, respectively. 11. The electric power system according to claim 9, wherein the first unit and the second unit forms a first group sharing the third rechargeable battery, and wherein the electric power system further comprises a second group of a plurality of units connected to a second electric power line to share electric power, and a third electric power line to which the first electric power line and the second electric power line are connected to share electric power between the first group and the second group. 12. The electric power system according to claim 11, wherein the plurality of units in the second group are each equipped with a power source, a rechargeable battery and a power consuming portion. 13. The electric power system according to claim 12, wherein the second group includes a common rechargeable battery that is connected to the second electric power line and can interchange electric power with the rechargeable batteries in the plurality of units in the second group. 14. The electric power system according to claim 1, wherein the controller is arranged to sell electric power of the first rechargeable battery having been bought in the midnight power rate time slot to the second rechargeable battery not in the midnight power rate time slot through the first electric power line. 15. An electric power system connected with a commercial electric power, comprising; a first unit equipped with a first power source, a first rechargeable battery to which an output of the first power source and power form the commercial electric power are input, a controller, and a first power consuming portion to which an output of the first rechargeable battery is input;a second unit equipped with a second power source, a second rechargeable battery to which an output of the second power source and power form the commercial electric power are input, and a second power consuming portion to which an output of the second rechargeable battery is input; anda first electric power line for sharing electric power directly between the first rechargeable battery and the second rechargeable battery, wherein the electric power is directly transmitted from the first rechargeable battery to the second battery and vice versa through the first electric power line which is controlled by the controller,wherein the controller is arranged to control electric power transmission directly from the first rechargeable battery to the second battery and vice versa through the first electric power line depending on whether or not a stored electricity in the first rechargeable battery is equal or larger than electricity that is expected to be consumed by first power consuming portion in the first unit by a next midnight power rate time slot of the commercial electric power. 16. The electric power system according to claim 15, further comprising a third rechargeable battery that is connected to the first electric power line and can interchange electric power with the first and second rechargeable batteries. 17. The electric power system according to claim 16, wherein the first unit and the second unit forms a first group sharing the third rechargeable battery, and wherein the electric power system further comprises a second group of a plurality of units connected to a second electric power line to share electric power, and a third electric power line to which the first electric power line and the second electric power line are connected to share electric power between the first group and the second group. 18. The electric power system according to claim 17, wherein the plurality of units in the second group are each equipped with a power source, a rechargeable battery and a power consuming portion. 19. The electric power system according to claim 18, wherein the second group includes a common rechargeable battery that is connected to the second electric power line and can interchange electric power with the rechargeable batteries in the plurality of units in the second group. 20. The electric power system according to claim 15, wherein the controller is arranged to transmit the electric power from the first rechargeable battery to the second battery through the first electric power line if the stored electricity in the first rechargeable battery is equal or larger than the electricity that can be consumed in the first unit by the next midnight power rate time slot, and not to transmit the electric power from the first rechargeable battery to the second battery through the first electric power line if the stored electricity in the first rechargeable battery is less than the electricity that is expected to be consumed by first power consuming portion in the first unit by the next midnight power rate time slot.
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이 특허에 인용된 특허 (1)
Masias,Alvaro; Mukainakano,Hiroshi; Tsukamoto,Hisashi, Power system for managing power from multiple power sources.
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