Patents Assigned to Sacramento Municipal Utility District
  • Patent number: 11900488
    Abstract: An energy control and storage system includes an energy monitor, a power controller, an energy storage device, and a computing unit. The energy monitor monitors power provided between an electric distribution system and a load. The power controller exchanges power with the energy monitor and receives power from a power generation system. The energy storage device stores energy received through the power controller. The computing unit receives a load shape from outside the energy control and storage system. The computing unit controls power exchanged between the energy control and storage system and the electric distribution system based on power indicated by the load shape that changes in response to varying conditions affecting the electric distribution system.
    Type: Grant
    Filed: November 12, 2021
    Date of Patent: February 13, 2024
    Assignee: Sacramento Municipal Utility District
    Inventors: Nikolas Rechtiene, James Frasher, Obadiah Bartholomy
  • Patent number: 11762010
    Abstract: A computer system that includes a processor device and a storage device is configured to determine a base load at a utility customer site using power usage data for the utility customer site, to determine a variable load at the utility customer site during a range of temperature independent days using the power usage data, and to determine a temperature dependent load at the utility customer site that exceeds the variable load and the base load using the power usage data. The computer system is further configured to assign a flag to each time interval that the temperature dependent load exceeds a power usage threshold and to determine if the utility customer site has an equipment malfunction based on a number of the flags assigned within a time period.
    Type: Grant
    Filed: October 15, 2021
    Date of Patent: September 19, 2023
    Assignee: Sacramento Municipal Utility District
    Inventors: Lucas Krall, Jeffrey Paull, Yareli Herrera
  • Publication number: 20230122964
    Abstract: A computer system that includes a processor device and a storage device is configured to determine a base load at a utility customer site using power usage data for the utility customer site, to determine a variable load at the utility customer site during a range of temperature independent days using the power usage data, and to determine a temperature dependent load at the utility customer site that exceeds the variable load and the base load using the power usage data. The computer system is further configured to assign a flag to each time interval that the temperature dependent load exceeds a power usage threshold and to determine if the utility customer site has an equipment malfunction based on a number of the flags assigned within a time period.
    Type: Application
    Filed: October 15, 2021
    Publication date: April 20, 2023
    Applicant: Sacramento Municipal Utility District
    Inventors: Lucas Krall, Jeffrey Paull, Yareli Herrera
  • Patent number: 11487994
    Abstract: A computer system is configured to group solar power systems that provide electric power to an electricity distribution system into clusters. The computer system identifies a solar source meter in each of the clusters that is representative of the respective one of the clusters as a bellwether meter. Each of the bellwether meters monitors a power output of one of the solar power systems in one of the clusters. The computer system receives solar power generation data from the bellwether meters. The computer system generates a solar power generation forecast for each of the clusters of the solar power systems using the solar power generation data from the bellwether meters in respective ones of the clusters.
    Type: Grant
    Filed: January 23, 2019
    Date of Patent: November 1, 2022
    Assignee: Sacramento Municipal Utility District
    Inventors: Remington Clark, Jeff Berkheimer
  • Publication number: 20220069579
    Abstract: An energy control and storage system includes an energy monitor, a power controller, an energy storage device, and a computing unit. The energy monitor monitors power provided between an electric distribution system and a load. The power controller exchanges power with the energy monitor and receives power from a power generation system. The energy storage device stores energy received through the power controller. The computing unit receives a load shape from outside the energy control and storage system. The computing unit controls power exchanged between the energy control and storage system and the electric distribution system based on power indicated by the load shape that changes in response to varying conditions affecting the electric distribution system.
    Type: Application
    Filed: November 12, 2021
    Publication date: March 3, 2022
    Applicant: Sacramento Municipal Utility District
    Inventors: Nikolas Rechtiene, James Frasher, Obadiah Bartholomy
  • Patent number: 11196258
    Abstract: An energy control and storage system includes an energy monitor, a power controller, an energy storage device, and a computing unit. The energy monitor monitors power provided between an electric distribution system and a load. The power controller exchanges power with the energy monitor and receives power from a power generation system. The energy storage device stores energy received through the power controller. The computing unit receives a load shape from outside the energy control and storage system. The computing unit controls power exchanged between the energy control and storage system and the electric distribution system based on power indicated by the load shape that changes in response to varying conditions affecting the electric distribution system.
    Type: Grant
    Filed: August 3, 2018
    Date of Patent: December 7, 2021
    Assignee: Sacramento Municipal Utility District
    Inventors: Nikolas Rechtiene, James Frasher, Obadiah Bartholomy
  • Publication number: 20210349135
    Abstract: A computer system analyzes data from smart meters. The computer system can, for example, analyze the data from a smart meter to determine if the smart meter is connected to a different distribution transformer, if the smart meter is at a customer site where power theft is occurring, if the smart meter is located at a customer site having a solar photovoltaic system, if the smart meter is located at a customer site having an electric vehicle, or if the smart meter is located at a grow house.
    Type: Application
    Filed: July 23, 2021
    Publication date: November 11, 2021
    Applicant: Sacramento Municipal Utility District
    Inventors: Remington Clark, Jeff Berkheimer, Sheikh Hassan
  • Patent number: 11092629
    Abstract: A computer system analyzes data from smart meters. The computer system can, for example, analyze the data from a smart meter to determine if the smart meter is connected to a different distribution transformer, if the smart meter is at a customer site where power theft is occurring, if the smart meter is located at a customer site having a solar photovoltaic system, if the smart meter is located at a customer site having an electric vehicle, or if the smart meter is located at a grow house.
    Type: Grant
    Filed: August 27, 2018
    Date of Patent: August 17, 2021
    Assignee: Sacramento Municipal Utility District
    Inventors: Remington Clark, Jeff Berkheimer, Sheikh Hassan
  • Publication number: 20200064385
    Abstract: A computer system analyzes data from smart meters. The computer system can, for example, analyze the data from a smart meter to determine if the smart meter is connected to a different distribution transformer, if the smart meter is at a customer site where power theft is occurring, if the smart meter is located at a customer site having a solar photovoltaic system, if the smart meter is located at a customer site having an electric vehicle, or if the smart meter is located at a grow house.
    Type: Application
    Filed: August 27, 2018
    Publication date: February 27, 2020
    Applicant: Sacramento Municipal Utility District
    Inventors: Remington Clark, Jeff Berkheimer, Sheikh Hassan
  • Publication number: 20200044447
    Abstract: An energy control and storage system includes an energy monitor, a power controller, an energy storage device, and a computing unit. The energy monitor monitors power provided between an electric distribution system and a load. The power controller exchanges power with the energy monitor and receives power from a power generation system. The energy storage device stores energy received through the power controller. The computing unit receives a load shape from outside the energy control and storage system. The computing unit controls power exchanged between the energy control and storage system and the electric distribution system based on power indicated by the load shape that changes in response to varying conditions affecting the electric distribution system.
    Type: Application
    Filed: August 3, 2018
    Publication date: February 6, 2020
    Applicant: Sacramento Municipal Utility District
    Inventors: Nikolas Rechtiene, James Frasher, Obadiah Bartholomy
  • Publication number: 20200026982
    Abstract: A computer system is configured to group solar power systems that provide electric power to an electricity distribution system into clusters. The computer system identifies a solar source meter in each of the clusters that is representative of the respective one of the clusters as a bellwether meter. Each of the bellwether meters monitors a power output of one of the solar power systems in one of the clusters. The computer system receives solar power generation data from the bellwether meters. The computer system generates a solar power generation forecast for each of the clusters of the solar power systems using the solar power generation data from the bellwether meters in respective ones of the clusters.
    Type: Application
    Filed: January 23, 2019
    Publication date: January 23, 2020
    Applicant: Sacramento Municipal Utility District
    Inventors: Remington Clark, Jeff Berkheimer
  • Patent number: 9889759
    Abstract: The invention provides improved methods for detecting the presence of a plug-in electric vehicle (PEV) at a location based on interval measurements from whole house electrical meters. This methodology is applicable to multiple detection algorithms and has been validated using actual PEV customer data.
    Type: Grant
    Filed: October 31, 2014
    Date of Patent: February 13, 2018
    Assignee: Sacramento Municipal Utility District
    Inventors: Deepak Jayanti Aswani, Nathan Toyama, William David Boyce
  • Patent number: 5994892
    Abstract: An automatic utility meter is provided for collecting, calculating, storing and displaying data correlative of consumption of utility commodities such as electric power, gas, water and the like. In addition, the automatic utility meter includes communication means which allows bi-directional communication of data to and from a remote computer. The automatic utility meter is a direct replacement for existing electric utility meters and uses direct read circuitry to sample and calculate power directly from the input voltage and current waveforms received from an electric utility company.
    Type: Grant
    Filed: July 31, 1996
    Date of Patent: November 30, 1999
    Assignee: Sacramento Municipal Utility District
    Inventors: Thomas R. Turino, Keith Bergiven, Dan Opperman, Anthony Warner
  • Patent number: D261806
    Type: Grant
    Filed: August 13, 1979
    Date of Patent: November 10, 1981
    Assignee: Sacramento Municipal Utility District
    Inventor: Daniel D. Whitney