Abstract: An electrical device includes a memory storing a value indicative the remaining available rated capacity of one or more batteries. The stored value is changed in use to reflect reducing capacity. The initial stored value is chosen so that there is a very high (e.g. >99.9%) confidence that the one or more batteries will provide at least the capacity indicated by the initial stored value. This reduces the chance of failure during emergency procedures. The one or more batteries may be integral to the electrical device. An override facility is provided.

Abstract: A system for improving the overall performance of an energy generation system to a home includes an engagement platform, an energy generation system, an electronic device, and a home digital assistant. By drawing data across a disparate array of sources, including data from before the energy generation system is put online, the system generates and provides users and components of the energy generation system with personalized interactions, thereby effecting improvements in energy efficiency beyond those realized in behavior-agnostic control and monitoring systems.

Abstract: A system for improving the overall performance of an energy generation system to a home includes an engagement platform, an energy generation system, an electronic device, and a home digital assistant. By drawing data across a disparate array of sources, including data from before the energy generation system is put online, the system generates and provides users and components of the energy generation system with personalized interactions, thereby effecting improvements in energy efficiency beyond those realized in behavior-agnostic control and monitoring systems.