IP Library › Granted Patent US 12712368
Granted Patent B2
US 12712368 · App. 18/071,115 · Granted Aug 18, 2026

HVAC-centric energy hub system

Inventors: Xu She (Cohoes, NY); HanJong Kim (Avon, CT); Ismail Agirman (Southington, CT); Luis Arnedo (South Glastonbury, CT)
Assignee: CARRIER CORPORATION
H02J3/381F24F11/46H02J3/32H02M1/10H02J2101/22H02J2105/42
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Quick Facts
Patent No.
US 12712368
App. No.
18/071,115
Granted
Aug 18, 2026
Kind
B2
Abstract

A method and a system for operating a heating, ventilation, and air conditioning (HVAC) centric energy hub. A power conversion system is configured to condition power and is coupled to an HVAC system, a power grid, an energy storage device, an alternative energy source, and one or more loads. An energy management system is coupled to the power conversion system, the energy management system is configured to manage distribution of power from the power grid, the energy storage device, and the alternative energy source to the one or more loads and is further configured to communicate with energy management systems of other hubs.

Claims (38)

1 . A heating, ventilation, and air conditioning (HVAC) centric energy hub at a residential building or a commercial building, the hub comprising:

a power conversion system that is configured to condition power for and is coupled to an HVAC system, a power grid, an energy storage device, an alternative energy source, and one or more loads; and

an energy management system coupled to the power conversion system, the energy management system is configured to manage distribution of power from the power grid, the energy storage device, and the alternative energy source to the one or more loads and is further configured to communicate with at least one other hub at a residential building or a commercial building, the at least one other hub including a power conversion system and an energy management system;

wherein the energy management system is further configured to control the power conversion system to provide energy-as-a-service to one or more loads based at least in part on the communication with the energy management system of the at least one other hub, wherein the at least one other hub is located remotely from the hub;

wherein the power conversion system is further configured to provide power to the power grid to supply power to one or more external loads directly connected to the at least one other hub based at least in part on the communication with the energy management system of the at least one other hub;

wherein the at least one other hub includes:

a further power conversion system that is configured to condition power for and is coupled to a further HVAC system, the power grid, a further energy storage device, a further alternative energy source, and one or more further loads; and

a further energy management system coupled to the further power conversion system.

2 . The hub of claim 1 , wherein the power conversion system further comprises a direct current (DC) interface for connecting DC loads and an alternating current (AC) interface for connecting AC loads.

3 . The hub of claim 1 , wherein the alternative energy source is at least one of a solar power system or a wind power system.

4 . The hub of claim 1 , wherein the one or more loads directly connected to the power conversion system is a local load.

5 . The hub of claim 1 , wherein the energy storage system is configured to store energy from at least one of the power grid or the alternative energy source based at least in part on the communication with the energy management system of the at least one other hub hubs.

6 . The hub of claim 1 , wherein the hub communicates with at least one other hub over a communication channel, wherein the communication channel is separate from the power grid.

7 . The hub of claim 1 , wherein the power conversion system is directly coupled to the HVAC system, the alternative energy source, the energy storage device, and the one or more loads.

8 . The hub of claim 1 , further comprising heating, ventilation, and air conditioning (HVAC) equipment integrated with the power conversion system, the energy storage device and the energy management system.

9 . A method for operating a heating, ventilation, and air conditioning (HVAC) centric energy hub at a residential building or a commercial building, the method comprising:

managing, by an energy management system of the hub, distribution of power from a power grid, an energy storage device, and an alternative energy source to the one or more loads through a power conversion system;

communicating with at least one other hub at a residential building or a commercial building, the at least one other hub including a power conversion system and an energy management system, to manage the distribution of power, and

wherein the power conversion system is configured to condition power for and is directly connected to an HVAC system, the power grid, the energy storage device, the alternative energy source, and the one or more loads;

the method further comprising controlling the power conversion system to provide energy-as-a-service to one or more loads based at least in part on the communication with the energy management system of the at least one other hub, wherein the at least one other hub is located remotely from the hub;

the method further comprising providing power, using the power conversion system, to the power grid to supply power to one or more external loads directly connected to the other hubs based at least in part on the communication with the energy management system of the at least one other hub;

wherein the at least one other hub includes:

a further power conversion system that is configured to condition power for and is coupled to a further HVAC system, the power grid, a further energy storage device, a further alternative energy source, and one or more further loads; and

a further energy management system coupled to the further power conversion system.

10 . The method of claim 9 , wherein the power conversion system further comprises a direct current (DC) interface for connecting DC loads and an alternating current (AC) interface for connecting AC loads.

11 . The method of claim 9 , wherein the alternative energy source is at least one of a solar power system or a wind power system.

12 . The method of claim 9 , further comprising directly connecting one or more local loads to the power conversion system.

13 . The method of claim 9 , further comprising storing energy, using the energy storage system, from at least one of the power grid or the alternative energy source based at least in part on the communication with the energy management system of the at least one other hub.

14 . The method of claim 9 , further comprising communicating with the at least one other hub over a communication channel, wherein the communication channel is separate from the power grid.

15 . The method of claim 9 , further comprising directly connecting the power conversion system to the HVAC system, the alternative energy source, the energy storage device, and the one or more loads.

16 . A heating, ventilation, and air conditioning (HVAC) centric energy hub at a residential building or a commercial building, the hub comprising:

a power conversion system that is configured to condition power for and is coupled to an HVAC system, a power grid, an energy storage device, and one or more loads; and

an energy management system coupled to the power conversion system, the energy management system is configured to manage distribution of power from the power grid and the energy storage device to the one or more loads and is further configured to communicate with at least one other hub at a residential building or a commercial building, the at least one other hub including a power conversion system and an energy management system;

wherein the energy management system is further configured to control the power conversion system to provide energy-as-a-service to one or more loads based at least in part on the communication with the energy management system of the at least one other hub, wherein the at least one other hub is located remotely from the hub;

wherein the power conversion system is further configured to provide power to the power grid to supply power to one or more external loads directly connected to the at least one other hub based at least in part on the communication with the energy management system of the at least one other hub;

wherein the at least one other hub includes:

a further power conversion system that is configured to condition power for and is coupled to a further HVAC system, the power grid, a further energy storage device, and one or more further loads; and

a further energy management system coupled to the further power conversion system.