Abstract: A snow melting system for greenhouse comprises sensors for measuring an accumulation of snow on or at the greenhouse. A snow melting processor unit comprises an accumulation rate calculator for calculating an accumulation rate of the snow from the measured accumulation, and a heating prioritizer for actuating at least one of at least two different heating systems of the greenhouse as a function of at least the accumulation rate. A rooftop greenhouse system comprises a greenhouse adapted to be mounted to a rooftop surface. Two or more different heating systems mounted to the greenhouse to heat a roof of the greenhouse, and controlled by the snow melting system.

Abstract: A snow melting system for greenhouse comprises sensors for measuring an accumulation of snow on or at the greenhouse. A snow melting processor unit comprises an accumulation rate calculator for calculating an accumulation rate of the snow from the measured accumulation, and a heating prioritizer for actuating at least one of at least two different heating systems of the greenhouse as a function of at least the accumulation rate. A rooftop greenhouse system comprises a greenhouse adapted to be mounted to a rooftop surface. Two or more different heating systems mounted to the greenhouse to heat a roof of the greenhouse, and controlled by the snow melting system.

Abstract: A method for adjusting the vertical position of hydroponic supports of a growing system is provided. The supports are used for growing crops. A relative position between the two supports is adjustable. Actual vertical position data for the supports is received and compared with the desired data. The actual vertical position of a first support is adjusted relative to an adjacent second support when the actual data is different from the desired data. A growing system for optimizing crop production comprises generally horizontal hydroponic supports adapted to receive nutrients for feeding the crops. A position actuator is connected to the supports to vertically move them relative to one another. A position-adjusting module receives actual vertical position data of the supports and compared it with the desired data. An actuation command is transmitted to the position actuator when the actual position is different from the desired position.

Abstract: A method for adjusting the vertical position of hydroponic supports of a growing system is provided. The supports are used for growing crops. A relative position between the two supports is adjustable. Actual vertical position data for the supports is received and compared with the desired data. The actual vertical position of a first support is adjusted relative to an adjacent second support when the actual data is different from the desired data. A growing system for optimizing crop production comprises generally horizontal hydroponic supports adapted to receive nutrients for feeding the crops. A position actuator is connected to the supports to vertically move them relative to one another. A position-adjusting module receives actual vertical position data of the supports and compared it with the desired data. An actuation command is transmitted to the position actuator when the actual position is different from the desired position.