A metering and control subsystem for a photovoltaic solar system is configured for metering the photovoltaic solar system using current measurement devices and individually controlling relays to selectively energize photovoltaic branch circuits. In some examples, the metering and control subsystem includes photovoltaic branch connectors, a relay matrix, current measurement devices, and a metering and relay control circuit. The metering and control circuit is configured for metering the photovoltaic solar system using current measurement data from the current measurement devices and individually controlling the relays to selectively energize each photovoltaic branch circuit.

A junction box used for making electrical connections to a photovoltaic panel. The junction box has two chambers including a first chamber and a second chamber and a wall common to and separating both chambers. The wall may be adapted to have an electrical connection therethrough. The two lids are adapted to seal respectively the two chambers. The two lids are on opposite sides of the junction box relative to the photovoltaic panel. The two lids may be attachable using different sealing processes to a different level of hermeticity. The first chamber may be adapted to receive a circuit board for electrical power conversion. The junction box may include supports for mounting a printed circuit board in the first chamber. The second chamber is configured for electrical connection to the photovoltaic panel. A metal heat sink may be bonded inside the first chamber.

A junction box used for making electrical connections to a photovoltaic panel. The junction box has two chambers including a first chamber and a second chamber and a wall common to and separating both chambers. The wall may be adapted to have an electrical connection therethrough. The two lids are adapted to seal respectively the two chambers. The two lids are on opposite sides of the junction box relative to the photovoltaic panel. The two lids may be attachable using different sealing processes to a different level of hermeticity. The first chamber may be adapted to receive a circuit board for electrical power conversion. The junction box may include supports for mounting a printed circuit board in the first chamber. The second chamber is configured for electrical connection to the photovoltaic panel. A metal heat sink may be bonded inside the first chamber.

A modular power supply apparatus for use in harsh climates that comprises a portable, low cost, easily maintained, durable power supply for energy production as well as systems, methods for forming, and methods of using same.

A modular power supply apparatus for use in harsh climates that comprises a portable, low cost, easily maintained, durable power supply for energy production as well as systems, methods for forming, and methods of using same.

The present disclosure provides a photovoltaic (PV) disconnect device used in an electrical system. The electrical system includes an energy control system electrically coupled to a utility grid. The electrical system includes a PV power generation system electrically coupled to the energy control system. The electrical system includes an energy storage system electrically coupled to the energy control system. The PV disconnect device is electrically coupled to the PV power generation system and the energy control system. The PV disconnect device electrically disconnects the PV power generation system from the energy control system.

The present disclosure provides a photovoltaic (PV) disconnect device used in an electrical system. The electrical system includes an energy control system electrically coupled to a utility grid. The electrical system includes a PV power generation system electrically coupled to the energy control system. The electrical system includes an energy storage system electrically coupled to the energy control system. The PV disconnect device is electrically coupled to the PV power generation system and the energy control system. The PV disconnect device electrically disconnects the PV power generation system from the energy control system.

According to one or more embodiments, an intelligent solar racking system is provided. The intelligent solar racking system includes a racking frame that receives and mechanically supports solar modules. The intelligent solar racking system includes sensors distributed throughout the racking frame. Each of the sensors detects and reports parameter data by generating output signals. The sensors include module sensors positioned to associate with each of the solar modules and detect a module presence as the parameter data for the solar modules. The intelligent solar racking system includes a computing device that receives, stores, and analyzes the output signals to determine and monitor operations of the intelligent solar racking system.

The present invention relates to resiliency in photovoltaically produced power generation and utilization. This invention comprises a system of elements that combine to minimize the cost and complexity of a backup-capable solar power system. An element of this system is a prior-art balancer-based photovoltaic panel power optimizer whose power electronics are time-shared to allow an array of battery modules to power or provide supplemental or surge power to an inverter. Further elements of the system provide for rapid and low-cost installation, reliability, and easy and safe maintenance.

A method of installing on a horizontal or near-horizontal support surface a solar panel array including multiple solar panels may include, at the deployment site, fabricating from metal coil stock longitudinally continuous rack channels each having upstanding legs of different heights, locating the channels in parallel rows with a spacing determined by a width of the solar panels with interior spaces of the channels facing upwardly, weighing the channels down on the support surface by placing ballast in the channel spaces, and positioning the solar panels each with an edge supported by a high leg of one channel of the channels and an opposite edge supported by a low leg of an adjacent channel of the channels.