Load control system having an energy savings mode
First Claim
1. A load control system for a building having a lighting load located in a space of the building, a heating and cooling system, and a window located in the space of the building, the load control system responsive to a demand response command, the load control system comprising:
- a lighting control device for controlling the amount of power delivered to the lighting load, the lighting control device operable to decrease the amount of power delivered to the lighting load in response to the demand response command so as to decrease the power consumption of the lighting load;
a daylight control device for controlling the amount of natural light to be admitted through the window, the daylight control device operable to decrease the amount of natural light admitted through the window in response to the demand response command so as to decrease the power consumption of the heating and cooling system; and
a temperature control device for controlling a setpoint temperature of the heating and cooling system to thus control a present temperature in the building, the temperature control device operable to adjust the setpoint temperature of the heating and cooling system in response to the demand response command so as to decrease the power consumption of the heating and cooling system;
further comprising a controller coupled to the lighting control device, the daylight control device, and the temperature control device via a communication link, the controller operable to receive the demand response command and to transmit at least one digital message to the lighting control device, the daylight control device, and the temperature control device via the communication link in response to receiving the demand response command;
wherein the lighting control device decreases the amount of power delivered to the lighting load, the daylight control device decreases the amount of natural light admitted through the window, and the temperature control device adjusts the setpoint temperature in the building in response to receiving the at least one digital message from the controller;
wherein the temperature control device, in response to the at least one digital message, automatically increases the setpoint temperature of the heating and cooling system when the heating and cooling system is presently cooling the building so as to decrease the power consumption of the heating and cooling system, and decreases the setpoint temperature of the heating and cooling system when the heating and cooling system is presently heating the building so as to decrease the power consumption of the heating and cooling system;
further wherein, immediately after the load control system is installed and powered for the first time, the lighting control device is operable to decrease the amount of power delivered to the lighting load by a predetermined percentage in response to the at least one digital message, the daylight control device is operable to move to a fully-closed position whereby the window is covered in response to the at least one digital message, and the temperature control device is operable to increase the setpoint temperature by a predetermined amount in response to the at least one digital message when the heating and cooling system is presently cooling the building, and to decrease the setpoint temperature by a predetermined amount in response to the at least one digital message when the heating and cooling system is presently building.
2 Assignments
0 Petitions
Accused Products
Abstract
A load control system for a building having a lighting load, a window, and a heating and cooling system comprises a lighting control device for controlling the amount of power delivered to the lighting load, a daylight control device, such as a motorized window treatment, for adjusting the amount of natural light to be admitted through a window, and a temperature control device for controlling a setpoint temperature of the heating and cooling system to thus control a present temperature in the building. The load control system may also comprise a controllable electrical receptacle for turning on and off a plug-in electrical load connected thereto. The lighting control device, the daylight control device, the temperature control device, and the controllable receptacle are controlled so as to decrease a total power consumption of the load control system in response to a received demand response command.
127 Citations
57 Claims
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1. A load control system for a building having a lighting load located in a space of the building, a heating and cooling system, and a window located in the space of the building, the load control system responsive to a demand response command, the load control system comprising:
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a lighting control device for controlling the amount of power delivered to the lighting load, the lighting control device operable to decrease the amount of power delivered to the lighting load in response to the demand response command so as to decrease the power consumption of the lighting load; a daylight control device for controlling the amount of natural light to be admitted through the window, the daylight control device operable to decrease the amount of natural light admitted through the window in response to the demand response command so as to decrease the power consumption of the heating and cooling system; and a temperature control device for controlling a setpoint temperature of the heating and cooling system to thus control a present temperature in the building, the temperature control device operable to adjust the setpoint temperature of the heating and cooling system in response to the demand response command so as to decrease the power consumption of the heating and cooling system; further comprising a controller coupled to the lighting control device, the daylight control device, and the temperature control device via a communication link, the controller operable to receive the demand response command and to transmit at least one digital message to the lighting control device, the daylight control device, and the temperature control device via the communication link in response to receiving the demand response command; wherein the lighting control device decreases the amount of power delivered to the lighting load, the daylight control device decreases the amount of natural light admitted through the window, and the temperature control device adjusts the setpoint temperature in the building in response to receiving the at least one digital message from the controller; wherein the temperature control device, in response to the at least one digital message, automatically increases the setpoint temperature of the heating and cooling system when the heating and cooling system is presently cooling the building so as to decrease the power consumption of the heating and cooling system, and decreases the setpoint temperature of the heating and cooling system when the heating and cooling system is presently heating the building so as to decrease the power consumption of the heating and cooling system; further wherein, immediately after the load control system is installed and powered for the first time, the lighting control device is operable to decrease the amount of power delivered to the lighting load by a predetermined percentage in response to the at least one digital message, the daylight control device is operable to move to a fully-closed position whereby the window is covered in response to the at least one digital message, and the temperature control device is operable to increase the setpoint temperature by a predetermined amount in response to the at least one digital message when the heating and cooling system is presently cooling the building, and to decrease the setpoint temperature by a predetermined amount in response to the at least one digital message when the heating and cooling system is presently building. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35)
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36. A load control system for a building having a lighting load located in a space of the building, a heating and cooling system, and a window located in the space of the building, the load control system responsive to a demand response command, the load control system comprising:
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a lighting control device for controlling the amount of power delivered to the lighting load, the lighting control device operable to decrease the amount of power delivered to the lighting load in response to the demand response command so as to decrease the power consumption of the lighting load; a daylight control device for controlling the amount of natural light to be admitted through the window, the daylight control device operable to decrease the amount of natural light admitted through the window in response to the demand response command so as to decrease the power consumption of the heating and cooling system; and a temperature control device for controlling a setpoint temperature of the heating and cooling system to thus control a present temperature in the building, the temperature control device operable to adjust the setpoint temperature of the heating and cooling system in response to the demand response command so as to decrease the power consumption of the heating and cooling system; wherein the temperature control device, in response to the demand response command, automatically increases the setpoint temperature of the heating and cooling system when the heating and cooling system is presently cooling the building so as to decrease the power consumption of the heating and cooling system, and decreases the setpoint temperature of the heating and cooling system when the heating and cooling system is presently heating the building so as to decrease the power consumption of the heating and cooling system; further comprising; a controller coupled to the lighting control device, the daylight control device, and the temperature control device via a communication link, the controller operable to receive the demand response command and to transmit at least one digital message to the lighting control device, the daylight control device, and the temperature control device via the communication link in response to receiving the demand response command; wherein the lighting control device decreases the amount of power delivered to the lighting load, the daylight control device decreases the amount of natural light admitted through the window, and the temperature control device adjusts the setpoint temperature in the building in response to receiving the at least one digital message from the controller; wherein the daylight control device comprises a motorized window treatment having a window treatment fabric for covering the window, the motorized window treatment operable to move the fabric between a fully-open position in which the window is not covered and a fully-closed position in which the window is covered, the motorized window treatment operable to adjust the position of the fabric in response to the at least one digital message so as to decrease the power consumption of the heating and cooling system; further wherein, immediately after the load control system is installed and powered for the first time, the lighting control device is operable to decrease the amount of power delivered to the lighting load by approximately 20% in response to the at least one digital message, the motorized window treatment is operable to move the fabric to the fully-closed position in response to the at least one digital message and the temperature control device is operable to increase the setpoint temperature by approximately 2°
F. in response to the at least one digital message when the heating and cooling system is presently cooling the building, and to decrease the setpoint temperature by approximately 2°
F. in response to the at least one digital message when the heating and cooling system is presently heating the building.
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37. A load control system for a building having a lighting load, a window, and a heating and cooling system, the load control system comprising:
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a lighting control device for controlling the amount of power delivered to the lighting load; a motorized window treatment comprising a window treatment fabric for covering the window, the motorized window treatment operable to move the fabric between a fully-open position in which the window is not covered and a fully-closed position in which the window is covered; a temperature control device for controlling a setpoint temperature of the heating and cooling system to thus control a present temperature in the building; and a controller coupled to the lighting control device, the motorized window treatment, and the temperature control device via a communication link, the controller operable to receive a demand response command and to transmit at least one digital message to the lighting control device, the motorized window treatment, and the temperature control device via the communication link in response to receiving the demand response command; wherein the lighting control device is operable to automatically decrease the amount of power delivered to the lighting load so as to decrease the power consumption of the lighting load in response to receiving the at least one digital message from the controller, the motorized window treatment is operable to automatically move the fabric to the fully-closed position so as to decrease the power consumption of the heating and cooling system in response to receiving the at least one digital message from the controller, and the temperature control device is operable to automatically increase the setpoint temperature of the heating and cooling system during a first portion of the year and decrease the setpoint temperature of the heating and cooling system during a second portion of the year so as to decrease the power consumption of the heating and cooling system in response to receiving the at least one digital message from the controller; further wherein, immediately after the load control system is installed and powered for the first time, the lighting control device is operable to decrease the amount of power delivered to the lighting load by a predetermined percentage in response to the at least one digital message, the motorized window treatment is operable to move the fabric to the fully-closed position in response to the at least one digital message, and the temperature control device is operable to increase the setpoint temperature by a predetermined amount in response to the at least one digital message when the heating and cooling system is presently cooling the building, and to decrease the setpoint temperature by the predetermined amount in response to the at least one digital message when the heating and cooling system is presently heating the building.
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38. A method of controlling the amount of power delivered to a lighting load located in a space of a building, the amount of natural light admitted through a window located in the space, and a setpoint temperature of a heating and cooling system, the method comprising the steps of:
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providing a load control system that receives a demand response command and controls a lighting control device that controls the lighting load, a motorized window treatment for the window and a temperature control device to get the set-point temperature of the heating and cooling system; receiving the demand response command at the load control system; adjusting the amount of power delivered to the lighting load with the lighting control device so as to decrease the power consumption of the lighting load in response to receiving the demand response command; decreasing the amount of natural light admitted through the window with the motorized window treatment so as to decrease the power consumption of the heating and cooling system in response to receiving the demand response command; and adjusting the setpoint temperature of the heating and cooling system with the temperature control device so as to decrease the power consumption of the heating and cooling system in response to receiving the demand response command; further comprising installing and powering the load control system, and immediately after being installed and powered for the first time, operating the load control system so as to control the lighting control device to decrease the amount of power delivered to the lighting load by a predetermined percentage in response to the demand response command, control the motorized window treatment to move the fabric to the fully-closed position in response to the demand response command, and control the temperature control device to increase the setpoint temperature by a predetermined amount in response to the demand response command when the heating and cooling system is presently cooling the building, and to decrease the setpoint temperature by a predetermined amount in response to the demand response command when the heating and cooling system is presently heating the building. - View Dependent Claims (39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52)
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53. A load control system for a building having a lighting load located in a space of the building, a heating and cooling system, and a window located in the space of the building, the load control system responsive to a demand response command, the load control system comprising:
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a lighting control device for controlling the amount of power delivered to the lighting load; a motorized window treatment comprising a window treatment fabric for covering the window; a temperature control device for controlling a setpoint temperature of the heating and cooling system to thus control a present temperature in the building; and a controller coupled to the lighting control device, the motorized window treatment, and the temperature control device via a communication link, the controller operable to receive the demand response command and to transmit at least one digital message to the lighting control device, the motorized window treatment, and the temperature control device via the communication link in response to receiving the demand response command; wherein, immediately after the load control system is installed and powered for the first time, the lighting control device is operable to decrease the amount of power delivered to the lighting load by a predetermined percentage in response to the at least one digital message, the motorized window treatment is operable to move the fabric to the fully-closed position in response to at least one digital message, and the temperature control device is operable to increase the setpoint temperature by a predetermined amount in response to the at least one digital message when the heating and cooling system is presently cooling the building, and to decrease the setpoint temperature by the predetermined amount in response to the at least one digital message when the heating and cooling system is presently heating the building; further wherein the demand response command comprises a planned demand response command indicating an upcoming planned demand response event, the controller transmitting the at least one second digital message to the lighting control device, the daylight control device, and the temperature control device to pre-condition the building prior to the upcoming demand response event in response to the planned demand response command. - View Dependent Claims (54, 55, 56, 57)
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Specification