The present device is a self-contained, all-in-one MPPT controller and micro-inverter that can be connected directly to the load (that can be on or off grid) using a standard power socket feeding energy to the grid generated by different kind of sources, including wind turbines and solar panels, and that also controls a storage device to be used to reduce peak consumptions or as a back up solution. The device harvests information form different sensors, devices and sources to gather weather, energy and usage behaviors data. The device uses blockchain technology to track the information and provide accountability in the interchange of energy between devices. The all in one system also can be connected to a server to analyze the information through different types of algorithms, to be used to improve energy efficiency, allow energy management, and forecast weather conditions.

A structure for stabilizing a barrel on a pontoon vessel includes a deck structure. First And second hull frame members are affixed to the deck structure and extend therealong. In spaced relationship to each other. A first and second conduit extends along a respective hull frame member; the first conduit being spaced from the second conduit by a distance to receive a portion of a barrel therebetween and each conduit contacting the barrel above a barrel central line. A strap having a first end anchored near the first conduit, and tracing a path from the anchor beneath, and in contact with, the barrel disposed between the first conduit in the second conduit, along the second conduit, and returning to the first conduit by tracing a path from the second conduit to the first conduit beneath and in contact with the barrel.

A floating-building including a buoyant-base configured to afloat on a surface of a water-body, an anchoring mechanism configured to anchor the buoyant-base to a bottom of the water-body, a plurality of supporting-components mounted on the buoyant-base, and a plurality of supported-elements. The plurality of supported-elements are movably arranged on the plurality of supporting-components.

A sustainable floating and land application community based on a mass-produced modular, pre-fabricated kit of parts referred to as floating modular units (FMU) or land module units (LMU). Both modular units are designed to allow for various needs while remaining simple to deliver and assemble by hand in remote destinations prone to volatile shifts in water levels and currents. Both floating and land module units can be erected for use on land and bodies of water.

A safety shut-down system for a solar energy installation includes a DC to AC inverter converting DC power from a photovoltaic solar array to AC power and generating remote control signals to enable or disable the flow of DC power from each individual photovoltaic panel or string of panels to a photovoltaic output circuit. One or more manual switches, one of which may be at a service entrance for electrical power to the installation, are operative to cause the DC to AC inverter to disable all DC power from the photovoltaic solar array; this also occurs when the DC to AC inverter is shut off. A storage battery may selectively receive DC power from one or more photovoltaic panels or strings of panels for charging. The DC to AC inverter may generate AC power from the battery when the photovoltaic solar array is disabled.

A computer implemented method for controlling a power plant system comprising a photovoltaic power source, an inverter, a DC-to-DC converter, an energy storage and an energy storage manager, the method comprising: receiving target value for AC power to be supplied by the inverter; receiving weather forecast information, energy storage status information and photovoltaic power source parameters; generating forecasted energy flow information for the photovoltaic power source based on the weather information and the photovoltaic power source parameters; comparing the forecasted energy flow information and the energy storage status information; and adjusting the target value for the AC power based on the comparison.

A method for operating a wind turbine for generating electrical energy is provided comprising the steps as described below. The wind turbine comprises a nacelle being rotatably supported on a tower of the wind turbine, in particular wherein at least one tower cable is provided in the tower for electrically connecting the nacelle and/or components thereof to e.g. an electrical installation on a ground of the tower. In one step of the method an early untwist operation for untwisting the tower cables of the wind turbine is initiated at a first specific time. In addition, a future power generation of the wind turbine is predicted for a certain prediction period at least by analyzing a prediction of the wind, in particular by analyzing at least wind direction forecast information and/or wind speed forecast information. The first specific time for initiating the early untwist operation is determined such that an overall predicted energy generation of the wind turbine over the certain prediction period is maximized or that a predicted energy loss caused by an untwist operation is minimized.

A method of monitoring energy consumption includes steps of establishing an energy budget for a future time period, receiving device information for a plurality of electrical devices and associating the device information with the energy budget, periodically measuring electrical usage from the plurality of electrical devices, projecting future energy consumption for the future time period based on the measured electrical usage, comparing the projected future energy consumption to the energy budget, and if the projected future energy consumption deviates from the energy budget, automatically generating an alert. The projected future energy consumption can take into account various factors such as energy available from non-grid sources; weather forecasts; battery storage; and historical data. A system employing the method can automatically control devices to bring predicted consumption within the budget.

A single- or multi-phase DC to AC converter system suited for solar energy installations achieves cost reduction by eliminating low-frequency power transformers. One DC input polarity is selectively switched to an output terminal when the instantaneous AC output from a second output terminal is desired to be of the opposite polarity, while the other DC input polarity is used to form an approximation to a segment of a sine wave of the desired polarity at the second output terminal. The approximation for each phase is built in a multilevel fashion by outputting, at different times, voltage levels that differ by an integer multiple of a predetermined voltage step size, to the respective live AC output terminal through an associated low pass filter. A common-mode AC signal is thereby created on the balanced DC input lines at a frequency which is the AC output frequency times the number of phases, and which is useful for detecting ground faults in the DC circuit.

A floating base comprising a shell constructed from a plurality of blocks reinforced using a plurality of tensile elements. The shell includes an inner space, a length, a width and at least one bulkhead disposed across the width along the length of the shell within the shell to strengthen the shell. In one embodiment, the shell further includes a spine disposed substantially at right angle to the at least one bulkhead to further strengthen the shell.