Efficient electricity system

• US 7,801,794 B2
• Filed: 09/21/2001
• Issued: 09/21/2010
• Est. Priority Date: 09/21/2001
• Status: Active Grant

• Current Assignee: Nasdaq Technology AB (Nasdaq, Inc.)
• Original Assignee: OMX Technology AB
• Inventors: Gustafson, Leif
• Primary Examiner(s): CHEUNG, MARY DA ZHI WANG
• Application Number:
  US09/957,457
• Publication Number:
  US 20030061143A1
• Time in Patent Office: 3,287 Days
• Field of Search: 705 1- 45
• US Class Current: 705/37
• CPC Class Codes: G06Q 40/00 Finance; Insurance; Tax strategies; Processing of corporate or income taxes
• CPC Class Codes: G06Q 40/04 Trading; Exchange, e.g. stocks, commodities, derivatives or currency exchange
• CPC Class Codes: H02J 3/008 involving trading of energy or energy transmission rights
• CPC Class Codes: Y02B 70/3225 Demand response systems, e.g. load shedding, peak shaving
• CPC Class Codes: Y04S 10/50 Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications
• CPC Class Codes: Y04S 20/222 Demand response systems, e.g. load shedding, peak shaving
• CPC Class Codes: Y04S 50/10 Energy trading, including energy flowing from end-user application to grid

Abstract

In an electricity marketplace, real time price information is fed from an price feeder directly to the electricity equipment or the meter of an end consumer, and the consumer is charged a price corresponding to the real-time price as set on an electricity trading exchange. The end consumer is thereby enabled to control his/her power consumption more efficiently. Thus, the end consumer can take advantage of low prices as well as reduce consumption when the price exceeds some limit.

Claims

1. An electricity distribution system, comprising:

a number of producers and a number of consumers, each consumer receiving electrical power from a common electrical network connecting the producers with the consumers;

a first trading system for trading electricity contracts corresponding to electricity to be distributed on said electricity distribution system;

a price information dissemination unit, connected to said first trading system, for distributing price information corresponding to prices for the electricity contracts traded in the trading system;

means for connecting each consumer with said price dissemination unit to enable each consumer to receive said price information; and

means for enabling each consumer to vary the consumer'"'"'s electricity consumption based on the received price information.

2. A system according to claim 1, further comprising means for settlement in response to the price information received from the trading system.

3. A system according to claim 1 wherein the first trading system is a balancing market of the electricity system, and wherein the price information is based on a real time price determined within the balancing market.

4. A system according to claim 1 wherein the first trading system is an exchange for trading electricity within the electricity system, and wherein the price information is based on a spot market price determined within the exchange.

5. A system according to claim 1, further comprising a second trading system for trading electricity contracts in the electricity system connected to the price information dissemination unit, wherein the price information is further based on prices for the contracts traded in the second trading system.

6. A price information dissemination unit for disseminating electricity price information to a number of consumers of electricity connected to an electricity network, the unit comprising:

means, connected to a first trading system used for trading electricity contracts corresponding to electricity to be distributed on said electricity network, for receiving price information relating to prices at which electricity contracts are traded at the trading system,

means for forming a price information message corresponding to the received prices, and

means for transmitting the message to the consumers to enable each consumer to vary the consumer'"'"'s electricity consumption based on the transmitted price information.

7. A price information dissemination unit according to claim 6, wherein the first trading system is a balancing market and the price information corresponds to a real time price determined within the balancing market.

8. A price information dissemination unit according to claim 6, wherein the first trading system is an exchange for trading electricity within the electricity system, and wherein the price information corresponds to a spot market price determined within the exchange.

9. A price information dissemination unit according to claim 6, further comprising:

means connected to a second trading system used for trading electricity contracts corresponding to electricity to be distributed on said electricity network for receiving prices at which contracts are traded at the second trading system.

10. A method of settlement for use in an electricity distribution system comprising a number of producers and a number of consumers, each consumer receiving electrical power from an electrical network connecting the producers with the consumers, the method comprising the steps of:

receiving from a first trading system for trading electricity contracts corresponding to electricity to be distributed on said electricity distribution system price information relating to the electricity contracts traded,

forming a price information message corresponding to the received price information,

transmitting the price information message to the consumers to enable each consumer to receive price information corresponding to the prices from the trading system and to vary the consumer'"'"'s electricity consumption based on the received price information, and

performing settlement based on the price information and on a response from the consumer to the price information.

11. An electricity distribution system, comprising:

a number of producers and a number of consumers, each consumer receiving electrical power from an electrical network connecting the producers with the consumers;

a first trading system for trading electricity contracts corresponding to electricity to be distributed on said electricity distribution system;

a price information dissemination unit, connected to said first trading system, for receiving prices related to traded electricity contracts, generating price information corresponding to the received prices, and distributing the price information;

a communication system for connecting each consumer with said price dissemination unit and enabling each consumer to receive said price information and to vary the consumer'"'"'s electricity consumption based on the received price information; and

control equipment, connected to the communication system, for enabling each consumer to vary the consumer'"'"'s electricity consumption depending on the received price information.

12. A system according to claim 11, wherein the first trading system is a balancing market of the electricity system, and wherein the price information corresponds to a real time price determined within the balancing market.

13. A system according to claim 11, wherein the first trading system is an exchange for trading electricity within the electricity system, wherein the price information corresponds to a spot market price determined within the exchange.

14. A system according to claim 11, further comprising:

a second trading system for trading electricity contracts in the electricity system connected to the price information dissemination unit, and wherein the price information corresponds to prices for the contracts traded in the second trading system.

15. A method for disseminating electricity price information to a number of consumers of electricity connected to an electricity network, comprising:

receiving price information relating to prices at which electricity contracts corresponding to electricity to be distributed on the electricity network are traded at a first trading system,

forming a price information message corresponding to the received prices, and

transmitting the message to the consumers to enable each consumer to vary the consumer'"'"'s electricity consumption based on the received price information.

16. The method according to claim 15, wherein the first trading system is a balancing market and the price information corresponds to a real time price determined within the balancing market.

17. The method according to claim 15, wherein the first trading system is an exchange for trading electricity within the electricity system, and wherein the price information corresponds to a spot market price determined within the exchange.

18. The method according to claim 15, further comprising:

receiving prices at which contracts are traded at a second trading system used for trading electricity contracts.

19. The method according to claim 15, wherein the message is formatted as an XML-message (Extensible Markup Language), a DI message (Electronic Data Interchange), or any other type of an open API (Application Program Interface).