Patents Assigned to Sacramento Municipal Utility District
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Patent number: 11900488Abstract: 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: GrantFiled: November 12, 2021Date of Patent: February 13, 2024Assignee: Sacramento Municipal Utility DistrictInventors: Nikolas Rechtiene, James Frasher, Obadiah Bartholomy
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Patent number: 11762010Abstract: 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: GrantFiled: October 15, 2021Date of Patent: September 19, 2023Assignee: Sacramento Municipal Utility DistrictInventors: Lucas Krall, Jeffrey Paull, Yareli Herrera
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Publication number: 20230122964Abstract: 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: ApplicationFiled: October 15, 2021Publication date: April 20, 2023Applicant: Sacramento Municipal Utility DistrictInventors: Lucas Krall, Jeffrey Paull, Yareli Herrera
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Patent number: 11487994Abstract: 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: GrantFiled: January 23, 2019Date of Patent: November 1, 2022Assignee: Sacramento Municipal Utility DistrictInventors: Remington Clark, Jeff Berkheimer
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Publication number: 20220069579Abstract: 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: ApplicationFiled: November 12, 2021Publication date: March 3, 2022Applicant: Sacramento Municipal Utility DistrictInventors: Nikolas Rechtiene, James Frasher, Obadiah Bartholomy
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Patent number: 11196258Abstract: 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: GrantFiled: August 3, 2018Date of Patent: December 7, 2021Assignee: Sacramento Municipal Utility DistrictInventors: Nikolas Rechtiene, James Frasher, Obadiah Bartholomy
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Publication number: 20210349135Abstract: 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: ApplicationFiled: July 23, 2021Publication date: November 11, 2021Applicant: Sacramento Municipal Utility DistrictInventors: Remington Clark, Jeff Berkheimer, Sheikh Hassan
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Patent number: 11092629Abstract: 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: GrantFiled: August 27, 2018Date of Patent: August 17, 2021Assignee: Sacramento Municipal Utility DistrictInventors: Remington Clark, Jeff Berkheimer, Sheikh Hassan
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Publication number: 20200064385Abstract: 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: ApplicationFiled: August 27, 2018Publication date: February 27, 2020Applicant: Sacramento Municipal Utility DistrictInventors: Remington Clark, Jeff Berkheimer, Sheikh Hassan
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Publication number: 20200044447Abstract: 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: ApplicationFiled: August 3, 2018Publication date: February 6, 2020Applicant: Sacramento Municipal Utility DistrictInventors: Nikolas Rechtiene, James Frasher, Obadiah Bartholomy
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Publication number: 20200026982Abstract: 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: ApplicationFiled: January 23, 2019Publication date: January 23, 2020Applicant: Sacramento Municipal Utility DistrictInventors: Remington Clark, Jeff Berkheimer
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Patent number: 9889759Abstract: 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: GrantFiled: October 31, 2014Date of Patent: February 13, 2018Assignee: Sacramento Municipal Utility DistrictInventors: Deepak Jayanti Aswani, Nathan Toyama, William David Boyce
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Patent number: 5994892Abstract: 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: GrantFiled: July 31, 1996Date of Patent: November 30, 1999Assignee: Sacramento Municipal Utility DistrictInventors: Thomas R. Turino, Keith Bergiven, Dan Opperman, Anthony Warner
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Patent number: D261806Type: GrantFiled: August 13, 1979Date of Patent: November 10, 1981Assignee: Sacramento Municipal Utility DistrictInventor: Daniel D. Whitney