POWER GENERATION LEVELING SYSTEM AND POWER GENERATION LEVELING METHOD

• US 20110258063A1
• Filed: 04/13/2011
• Published: 10/20/2011
• Est. Priority Date: 04/16/2010
• Status: Active Grant

• Current Assignee: Rakuten Group, Inc.
• Original Assignee: NEC Corporation
• Inventors: ARAKAWA, KOJI
• Granted Patent: US 8,666,831 B2
• Time in Patent Office: Days
• US Class Current: 705/26.1
• CPC Class Codes: G06Q 10/06 Resources, workflows, human or project management; Enterprise or organisation planning; Enterprise or organisation modelling
• CPC Class Codes: G06Q 30/0601 Electronic shopping [e-shopping]
• CPC Class Codes: G06Q 50/06 Energy or water supply
• CPC Class Codes: Y04S 50/10 Energy trading, including energy flowing from end-user application to grid

Abstract

A communication part of a purchased power management device transmits, in response to an instruction from a user, rate information indicating a rate of power that the user wants to purchase to a sales management device. A charging part of the purchased power management device charges the battery at a date and time designated by the sales management device. A power output part of the purchased power management device outputs power stored in the battery during a time period of high electric power demand. A sale destination decision part of the sales management device decides a sale destination of the power generated during a time period of low electric power demand on a basis of the rate indicated by the rate information. A sales date and time information transmission part of the sales management device transmits sales date and time information designating a date and time when power is sold to the sale destination decided by the sale destination decision part.

Claims

1. A power generation leveling system that utilizes power generated during a time period of low electric power demand, comprising:

a sales management device that decides a sale destination of the power generated during a time period of low electric power demand; and

a purchased power management device including a battery storing purchased power, wherein

the purchased power management device includes;

a communication part that, in response to an instruction from a user, transmits rate information indicating a rate of power that the user wants to purchase to the sales management device;

a charging part that charges the battery at a date and time designated by the sales management device; and

a power output part that outputs power stored in the battery during a time period of high electric power demand, wherein

the sales management device includes;

a sale destination decision part that decides a sale destination of the power generated during a time period of low electric power demand on a basis of the rate indicated by the rate information; and

a sales date and time information transmission part that transmits sales date and time information designating a date and time when power is sold to the sale destination decided by the sale destination decision part.

2. The power generation leveling system according to claim 1, wherein

the sales management device includes a public information part that transmits supply date and time information indicating scheduled date and time when power to be sold is supplied in response to a request from a communication terminal connected with the Internet, and

the communication part of the purchased power management device transmits the rate information to the sales management device in accordance with a user'"'"'s operation on a basis of the scheduled date and time indicated by the supply date and time information transmitted by the public information part of the sales management device.

3. The power generation leveling system according to claim 1, further comprising:

an electric energy measurement part that measures electric energy stored in the battery by the charging part of the purchased power management device; and

an information transmission part that transmits purchased electric energy information indicating a result of the measurement by the electric energy measurement part to the sales management device, wherein

the sales management device includes a rate calculation part that calculates an amount billed to an installer of the purchased power management device on a basis of electric energy indicated by the purchased electric energy information transmitted by the information transmission part and the rate indicated by the rate information transmitted by the communication part of the purchased power management device.

4. The power generation leveling system according to claim 2, further comprising:

an electric energy measurement part that measures electric energy stored in the battery by the charging part of the purchased power management device; and

an information transmission part that transmits purchased electric energy information indicating a result of the measurement by the electric energy measurement part to the sales management device, wherein

the sales management device includes a rate calculation part that calculates an amount billed to an installer of the purchased power management device on a basis of electric energy indicated by the purchased electric energy information transmitted by the information transmission part and the rate indicated by the rate information transmitted by the communication part of the purchased power management device.

5. The power generation leveling system according to claim 3, wherein the information transmission part transmits the purchased electric energy information to the sales management device by PLC.

6. The power generation leveling system according to claim 4, wherein the information transmission part transmits the purchased electric energy information to the sales management device by PLC.

7. The power generation leveling system according to claim 1, wherein when power has been stored in the battery, the power output part of the purchased power management device starts output of power stored in the battery during a time period of high electric power demand set by a user beforehand.

8. The power generation leveling system according to claim 2, wherein when power has been stored in the battery, the power output part of the purchased power management device starts output of power stored in the battery during a time period of high electric power demand set by a user beforehand.

9. The power generation leveling system according to claim 3, wherein when power has been stored in the battery, the power output part of the purchased power management device starts output of power stored in the battery during a time period of high electric power demand set by a user beforehand.

10. The power generation leveling system according to claim 4, wherein when power has been stored in the battery, the power output part of the purchased power management device starts output of power stored in the battery during a time period of high electric power demand set by a user beforehand.

11. The power generation leveling system according to claim 5, wherein when power has been stored in the battery, the power output part of the purchased power management device starts output of power stored in the battery during a time period of high electric power demand set by a user beforehand.

12. The power generation leveling system according to claim 6, wherein when power has been stored in the battery, the power output part of the purchased power management device starts output of power stored in the battery during a time period of high electric power demand set by a user beforehand.

13. A power generation leveling method for utilizing power generated during a time period of low electric power demand, comprising:

transmitting, in response to an instruction from a user, rate information indicating a rate of the power generated during a time period of low electric power demand that the user wants to purchase;

deciding a sale destination of the power generated during a time period of low electric power demand on a basis of the rate indicated by the rate information;

transmitting sales date and time information designating a date and time when power is to be sold to the decided sale destination;

charging a battery at the date and time designated by the sales date and time information; and

outputting the power stored in the battery during a time period of high electric power demand.

14. The power generation leveling method according to claim 13, further comprising:

transmitting supply date and time information indicating scheduled date and time when power to be sold is supplied in response to a request from a communication terminal connected with the Internet, and

transmitting the rate information in accordance with a user'"'"'s operation on a basis of the scheduled date and time indicated by the transmitted supply date and time information.

15. The power generation leveling method according to claim 13, further comprising:

measuring electric energy stored in the battery;

transmitting purchased electric energy information indicating a result of the measurement; and

calculating an amount billed on a basis of electric energy indicated by the transmitted purchased electric energy information and the rate indicated by the transmitted rate information.