Abstract: A method includes accessing historic five-minute electricity data for a predetermined number of previous days, determining, using the historic five-minute electricity data for the predetermined number of previous days, a maximum charge price for the predetermined number of previous days, and determining, using the historic five-minute electricity data for the predetermined number of previous days, a minimum discharge price for the predetermined number of previous days. The method further includes determining a current amount of charge of a battery, accessing live five-minute electricity data for a current day, and communicating one or more instructions to discharge a battery when a next live five-minute electricity price is greater than the determined minimum discharge price and the current amount of charge of the battery is greater than zero.

Abstract: A method includes accessing historic five-minute electricity data for a predetermined number of previous days, determining, using the historic five-minute electricity data for the predetermined number of previous days, a maximum charge price for the predetermined number of previous days, and determining, using the historic five-minute electricity data for the predetermined number of previous days, a minimum discharge price for the predetermined number of previous days. The method further includes determining a current amount of charge of a battery, accessing live five-minute electricity data for a current day, and communicating one or more instructions to discharge a battery when a next live five-minute electricity price is greater than the determined minimum discharge price and the current amount of charge of the battery is greater than zero.

Abstract: A system includes an energy storage device geographically proximate a plurality of load centers. The energy storage device is coupled to one or more of the plurality of load centers for supplying energy to the load centers and is also coupled to an energy generation source for receiving energy from the energy generation source. The system also includes a control system that is operable to receive energy market data, monitor the plurality of load centers, the energy storage device, and the energy generation source, and control the charging and dispatching of the energy storage device based on the monitoring and the energy market data.

Abstract: A process for treating a centrifugal compressor wheel includes a combination of cold expansion of at least part of the bore of the wheel to induce residual compressive stresses in a region around the bore, and surface peening at least parts of the compressor wheel such as the back disk and portions of the blades.

Abstract: A process for treating a centrifugal compressor wheel includes a combination of cold expansion of at least part of the bore of the wheel to induce residual compressive stresses in a region around the bore, and surface peening at least parts of the compressor wheel such as the back disk and portions of the blades.

Abstract: A process for cold working of the inner surface of a bore in a centrifugal compressor wheel along only a fractional portion of the bore length (i.e., along less than a full axial length of the bore), thereby creating a zone of compressive residual hoop stress in the metal surrounding the bore where the wheel needs the beneficial residual stress. The process purposefully avoids cold working of the bore at locations adjacent to high-stress areas and features of the wheel, where cold working in such locations could negatively impact the wheel's overall life.

Abstract: A system includes an energy storage device geographically proximate a plurality of load centers. The energy storage device is coupled to one or more of the plurality of load centers for supplying energy to the load centers and is also coupled to an energy generation source for receiving energy from the energy generation source. The system also includes a control system that is operable to receive energy market data, monitor the plurality of load centers, the energy storage device, and the energy generation source, and control the charging and dispatching of the energy storage device based on the monitoring and the energy market data.

Abstract: A system includes an energy storage device geographically proximate a plurality of load centers. The energy storage device is coupled to one or more of the plurality of load centers for supplying energy to the load centers and is also coupled to an energy generation source for receiving energy from the energy generation source. The system also includes a control system that is operable to receive energy market data, monitor the plurality of load centers, the energy storage device, and the energy generation source, and control the charging and dispatching of the energy storage device based on the monitoring and the energy market data.

Abstract: A process for cold working of the inner surface of a bore in a centrifugal compressor wheel along only a fractional portion of the bore length (i.e., along less than a full axial length of the bore), thereby creating a zone of compressive residual hoop stress in the metal surrounding the bore where the wheel needs the beneficial residual stress. The process purposefully avoids cold working of the bore at locations adjacent to high-stress areas and features of the wheel, where cold working in such locations could negatively impact the wheel's overall life.

Abstract: A system includes an energy storage device geographically proximate a plurality of load centers. The energy storage device is coupled to one or more of the plurality of load centers for supplying energy to the load centers and is also coupled to an energy generation source for receiving energy from the energy generation source. The system also includes a control system that is operable to receive energy market data, monitor the plurality of load centers, the energy storage device, and the energy generation source, and control the charging and dispatching of the energy storage device based on the monitoring and the energy market data.

Abstract: In an example embodiment, errors in software may be monitored to identify types for the errors and individual programmers responsible for the errors. Then a customized learning plan for online education may be created for one or more individual programmers based on the types of errors identified by the bug tracking module and the individual programmers responsible for those errors.