Energy alert power system and method

• US 8,505,831 B2
• Filed: 02/07/2008
• Issued: 08/13/2013
• Est. Priority Date: 02/07/2007
• Status: Expired due to Fees

• Current Assignee: Tim Simon, Inc.
• Original Assignee: Tim Simon, Inc.
• Inventors: Simon, Timothy M., Smith, Blaine M., Fisher, Matthew T.
• Primary Examiner(s): Huynh, Khoa
• Assistant Examiner(s): Trieu, Timothy K
• Application Number:
  US12/027,791
• Publication Number:
  US 20080185451A1
• Time in Patent Office: 2,014 Days
• Field of Search: 307/35, 307/39, 307/31, 236/51, 700/276, 700/295, 700/296, 700/297, 340/870.17
• US Class Current: 236/51
• CPC Class Codes: G05D 23/1917 using digital means
• CPC Class Codes: G05F 1/66 Regulating electric power
• CPC Class Codes: G06F 1/3293 by switching to a less power-consuming processor, e.g. sub-CPU
• CPC Class Codes: H02J 13/00026 involving a local wireless network, e.g. Wi-Fi, ZigBee or Bluetooth
• CPC Class Codes: H02J 2310/62 The condition being non-electrical, e.g. temperature
• CPC Class Codes: H02J 3/14 by switching loads on to, or off from, network, e.g. progressively balanced loading
• CPC Class Codes: Y02B 70/30 Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
• CPC Class Codes: Y02B 70/3225 Demand response systems, e.g. load shedding, peak shaving
• CPC Class Codes: Y02E 40/70 Smart grids as climate change mitigation technology in the energy generation sector
• 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 20/244 the home appliances being or involving heating ventilating and air conditioning [HVAC] units

Abstract

An energy control system, helping to reduce energy consumption from an energy grid, includes a power meter which receives first power-save signal and generates a second power-save signal for receipt by a control device. The target temperature of a thermostat is changed for a period of time in response to the second power-save signal. The control device can create a third power-save signal for receipt by a power-save adapter for an associated energy-consuming unit to permit only limited operation of the energy-consuming unit.

Claims

1. A method for temporarily reducing energy demand on an energy grid comprising:

receiving a first power-save signal by a power meter of a user, the power meter being a remotely accessible power meter through which power is supplied to the user, the first power-save signal being received before a need to reduce power consumption;

transmitting a second power-save signal from the power meter to a control device, the control device associated with a thermostat;

changing a target temperature of the thermostat to a power-save target temperature in response to the second power-save signal;

transmitting a third power-save signal by the control device to a power-save adapter of an associated energy-consuming unit;

and upon receiving the third power-save signal by the power-save adapter, the power-save adapter permitting operation of the energy-consuming unit for a first period of time and at least substantially preventing operation of the energy-consuming unit following the first period of time.

2. The method according to claim 1 wherein the changing step further comprises delaying changing the target temperature to the power-save target temperature for a second period of time in response to the second power-save signal.

3. The method according to claim 2 wherein the first power-save signal contains an instruction to delay changing the target temperature for said second period of time.

4. The method according to claim 1 wherein the first power-save signal is received at least 1 hour before the need to reduce power consumption.

5. The method according to claim 1 wherein the first power-save signal receiving step and the second power-save signal transmitting step are wireless signal receiving and transmitting steps.

6. The method according to claim 1 wherein the second power-save signal transmitting step is carried out with the control device and the thermostat within a common housing.

7. The method according to claim 1 wherein the power save adapter is separable from the energy-consuming unit.

8. The method according to claim 1 further comprising providing a user indication that a power-save condition exists by at least one of the thermostat, the control device, and the energy-consuming unit.

9. The method according to claim 1 wherein:

the third power-save signal transmitting step is carried out with the energy-consuming unit comprising a clothes dryer; and

upon receiving the third power-save signal by the power-save adapter, the power-save adapter permits finishing any currently running drying cycle of the clothes dryer during said first period of time and thereafter at least substantially prevents operation of the clothes dryer for at least a third period of time.

10. The method according to claim 9 wherein upon receiving the third power-save signal by the power-save adapter, the power-save adapter also permits starting, within a time period after receiving the third power-save signal, a new drying cycle of the clothes dryer during said first period of time and thereafter at least substantially prevents operation of the clothes dryer during said third period of time.

11. The method according to claim 1 wherein:

the third power-save signal transmitting step is carried out with the energy-consuming unit comprising a hot water heater; and

upon receiving the third power-save signal by the power-save adapter, the power-save adapter permits the hot water heater to heat the water within the hot water heater during said first period of time and thereafter at least substantially prevents operation of the hot water heater during a third period of time.

12. The method according to claim 1 further comprising providing a user indication that a power-save condition exists.

13. A method according to claim 1 wherein the first power-save signal receiving step is carried out using electric power consumption meter as the power meter.

14. A method for temporarily reducing energy demand on an energy grid comprising:

receiving a first power-save signal by a power meter of a user, the power meter being a remotely accessible power meter through which power is supplied to the user, the first power-save signal being received before a need to reduce power consumption;

transmitting a second power-save signal from the power meter to a control device, the control device associated with a thermostat;

changing a target temperature of the thermostat to a power-save target temperature in response to the second power-save signal; and

delaying changing the target temperature to the power-save target temperature for a second, chosen period of time.

15. The method according to claim 14 wherein the first power-save signal is a price event power-save signal;

and

optionally overriding the first power-save signal by the user.

16. The method according to claim 15 further comprising:

receiving a supplemental first power-save signal by the power meter, the supplemental first power-save signal being an emergency event power-save signal;

transmitting a supplemental second power-save signal from the power meter to the control device;

temporarily changing the target temperature of the thermostat to a supplemental power-save target temperature in response to the supplemental second power-save signal; and

preventing the user from overriding the supplemental first power-save signal.

17. An energy control system responsive to a need to reduce energy consumption from an energy grid comprising:

a power meter capable of receiving a first power-save signal and generating a second power-save signal;

a control device operably coupled to the power meter to receive the second power-save signal from the power meter;

a thermostat operably coupled to the control device and having a selected target temperature, the selected target temperature being changed to a power-save target temperature in response to receipt of the second power-save signal for at least a first length of time;

the control device capable of creating a third power-save signal in response to the receipt of the second power-save signal; and

a power-save adapter, for an associated energy-consuming unit, responsive to the third power-save signal, the power-save adapter permitting operation of the energy-consuming unit for a second period of time and at least substantially preventing operation of the energy-consuming unit until after said second period of time in response to the third power-save signal.

18. A system according to claim 17 wherein the power meter is an electric power meter, and the thermostat and the control device are in a common housing.

19. The system according to claim 17 wherein the power-save adapter is adapted to permit the energy-consuming unit to operate during said second period of time, and thereafter at least substantially prevent operation of the energy-consuming unit for at least a third period of time.

20. The system according to claim 17 wherein the energy-consuming unit comprises a clothes dryer and the power-save adapter for the clothes dryer is adapted to permit the clothes dryer to finish any currently running drying cycle during said second period of time and thereafter at least substantially prevent operation of the clothes dryer for at least a third period of time.

21. The system according to claim 20 wherein the power save adapter is also adapted to permit a new drying cycle to begin, during said second period of time following receipt of the third power-save signal, a new drying cycle, and after the second period of time at least substantially prevent operation of the clothes dryer for at least a third period of time.

22. The system according to claim 17 wherein the energy-consuming unit comprises a hot water heater and the power-save adapter for the hot water heater is adapted to permit the hot water heater to heat the water within the hot water heater during said second period of time and thereafter at least substantially prevent operation of the hot water heater during at least a third period of time.

23. The system according to claim 17 further comprising a user indication of a power-save condition in response to receipt of the third power-save signal by the power-save adapter for the energy consuming unit.

24. The system according to claim 17 further comprising a user indication of a power-save condition.

25. The system according to claim 24 wherein the user indication is provided in response to receipt of the second power-save signal.