The present invention relates to a photovoltaic facility (1) comprising a solar tracker (2) and at least one square or rectangular photovoltaic panel (3) mounted on the solar tracker (2), this solar tracker (2) enabling the inclination of the photovoltaic panel (3) to be varied with respect to the horizontal, so that two opposite edges of the photovoltaic panel, referred to as horizontal edges (31), are always horizontal whatever the inclination of the photovoltaic panel (3). This facility is characterised in that it comprises at least one gutter (4) for recovering rainwater, in that this gutter (4) is mounted along one of the two horizontal edges (31) of the photovoltaic panel (3) using at least two anchoring devices (5), to which it is suspended, so that it can oscillate under the action of its own weight, about a horizontal axis of rotation (Y-Y′), so as to remain horizontal whatever the inclination of the photovoltaic panel (3).

A solar-powered system includes a support portion; and an evaporation portion having a pumping layer and a photothermal layer. The support portion pumps a fluid to the evaporation portion, the pumping layer evaporates the fluid based on solar power; and the photothermal layer is insulated from the pumping layer.

A system includes a greenhouse and nanofluid configured to flow around the greenhouse and absorb some or significant portion of solar spectrum having a wavelength equal to or greater than 750 nm to reduce a cooling load inside the greenhouse. The system further includes a duct channel. The nanofluid flows around the greenhouse through the duct channel.

A flexible datacenter includes a mobile container, a behind-the-meter power input system, a power distribution system, a datacenter control system, a plurality of computing systems, and a climate control system. The datacenter control system modulates power delivery to the plurality of computing systems based on unutilized behind-the-meter power availability or an operational directive. A method of dynamic power delivery to a flexible datacenter using unutilized behind-the-meter power includes monitoring unutilized behind-the-meter power availability, determining when a datacenter ramp-up condition is met, enabling behind-the-meter power delivery to one or more computing systems when the datacenter ramp-up condition is met, and directing the one or more computing systems to perform predetermined computational operations.

A flexible growcenter includes a mobile container, a behind-the-meter power input system, a power distribution system, a growcenter control system, a climate control system, a lighting system, and an irrigation system. The growcenter control system modulates power delivery to one or more components of the climate control system, the lighting system, and the irrigation system based on unutilized behind-the-meter power availability or an operational directive. A method of dynamic power delivery to a flexible growcenter using unutilized behind-the-meter power includes monitoring unutilized behind-the-meter power availability, determining when a growcenter ramp-up condition is met, and enabling behind-the-meter power delivery to one or more computing systems when the growcenter ramp-up condition is met.

A computer-controlled greenhouse system constructed in accordance with the invention above provides climate management and precision cultivation capability. It is equipped with solar energy filtering devices to precisely manage visible sunlight intake based on plants stages and adjust solar heat intake according to climate management needs; it uses geothermal energy for heating and cooling; it reclaims water from moisture released by plants with vapor condensing devices.

An electrical energy production plant includes a support structure formed by support poles aligned along a first axis (X) fixed to the ground in any orientation. On the support structure, there is a movement system for solar energy receptors (P), suitable for allowing the movement of these devices around at least a first axis (X).

The plant includes an electronic processing unit capable of controlling the movement of these receiving devices (P), and below this support structure, there are agricultural crops in different shapes, and this electronic processing unit, by using the movement of the receptor devices regulates the shadow generated on the ground according to the need for direct light, or the best conditions of air temperature and soil moisture, in order to optimize the development or growth of these crops.

The presently disclosed subject matter refers to agro-photovoltaic modules (at times also referred to as agri voltaic modules) designed to increase the productivity use of available area. The agro-photovoltaic module can enable agricultural growth and the production of energy, e.g. by using photovoltaic cell(s), while using the same area (land space, lake, rooftop, etc.), therefore the agro-photovoltaic module can offer a good solution for this issue. This may help overcome legislations/rules in different countries, for example, where land can not be used solely for solar energy cultivation and must be integrated with agricultural purposes. The produced photovoltaic energy is either being used by components of the module or directed to an external electric power system.

Systems, methods, apparatuses, and computer program products for a greenhouse indoor environment controller based on model predictive control (MPC), which can be integrated into existing greenhouse regulatory systems to optimally maintain critical climatic variables, including artificial lighting levels, CO.sub.2, indoor temperature, and humidity levels within acceptable limits. The objectives of the MPC may be to maximize the rate of crop photosynthesis while optimizing the use of the available water and energy resources, taking into account the unpredictability and intermittent nature of renewable energies and external atmospheric conditions. Accordingly, certain embodiments may facilitate the management of greenhouses by anticipating control actions for a better quality of production. For that, mathematical formulations of the optimal control problem may be described, and the numerical results related to the application of the MPC to case studies are described integrating the effects of greenhouse structural considerations and the influence of climate data on its operation.

A convex reflective surface, such as mirror (1) or an equivalent deflector of radiation, designed to suit a FIG. 5 particular location or type of location, fixed in position and requiring no adjustment, can re-direct solar radiation (2,3) downwards onto a chosen target area throughout the calendar year or such lesser period of operation as may be chosen, benefitting the growth of plants in a greenhouse or the open air, and other human activities, at minimal expenditure including of fossil fuel.