A power conversion circuit is used in a solar array suitable for, e.g., roadside adjacent installation. The power conversion circuit includes an inverter with a first stage electrically coupled to one or more solar panels. A third stage of the circuit has a DC to AC converter that provides less than a 50 VAC load voltage to a load, and a second stage that is coupled between the first and third stages and provides an isolated electrical power coupling therebetween. A sync interface communicatively couples a controller to other controllers dedicated to one or more other respective inverters of the solar array via a sync signal. The controllers synchronize the third stages of the inverters via the sync signal. The third stages of the inverters are coupled in series to provide a load output voltage.

A power conversion circuit is used in a solar array suitable for, e.g., roadside adjacent installation. The power conversion circuit includes an inverter with a first stage electrically coupled to one or more solar panels. A third stage of the circuit has a DC to AC converter that provides less than a 50 VAC load voltage to a load, and a second stage that is coupled between the first and third stages and provides an isolated electrical power coupling therebetween. A sync interface communicatively couples a controller to other controllers dedicated to one or more other respective inverters of the solar array via a sync signal. The controllers synchronize the third stages of the inverters via the sync signal. The third stages of the inverters are coupled in series to provide a load output voltage.

The application relates to a noise control device including a substantially vertical wall element, at least one side arm projecting from the wall element, and at least one solar module supported by the side arm, wherein the side arm laterally supports the wall element, wherein the wall element forms a noise control surface above an upper edge of the solar module; as well as a noise control system including a noise control device of this type and an additional wall element spaced apart from same, which has an additional noise control surface and an additional solar module, wherein a height difference between the lower edge of the solar module of the noise control device and an upper edge of the additional wall element is less than or equal to 0.6 times the horizontal distance between the edges, and/or a height difference between a lower edge of the additional solar module and an upper edge of the noise control device is less than or equal to 0.6 times the horizontal distance between the edges.

The application relates to a noise control device including a substantially vertical wall element, at least one side arm projecting from the wall element, and at least one solar module supported by the side arm, wherein the side arm laterally supports the wall element, wherein the wall element forms a noise control surface above an upper edge of the solar module; as well as a noise control system including a noise control device of this type and an additional wall element spaced apart from same, which has an additional noise control surface and an additional solar module, wherein a height difference between the lower edge of the solar module of the noise control device and an upper edge of the additional wall element is less than or equal to 0.6 times the horizontal distance between the edges, and/or a height difference between a lower edge of the additional solar module and an upper edge of the noise control device is less than or equal to 0.6 times the horizontal distance between the edges.

The solar personal rapid transit (PRT) system is configured to provide a transportation system with higher material, energy, environmental, and economic sustainability. The solar PRT system includes autonomous vehicles or “pods” that travel on a rail guideway above the pods. The pods are configured for moving people and objects from one location to another along the rail guideway. Each pod is coupled to a drive unit via a hanger for moving the pods through the guideway. The drive unit includes wheels with flanges proximate to the outside edges of the guideway rails. A combination of tongue tracks and a switch blade is used to route the pods onto different tracks. A pre-tension frame supports each section of the guideway and includes a smart cushion that changes the length of the section based on environmental temperature. The smart cushion is further used with a BIPV module for a roof.

The solar personal rapid transit (PRT) system is configured to provide a transportation system with higher material, energy, environmental, and economic sustainability. The solar PRT system includes autonomous vehicles or “pods” that travel on a rail guideway above the pods. The pods are configured for moving people and objects from one location to another along the rail guideway. Each pod is coupled to a drive unit via a hanger for moving the pods through the guideway. The drive unit includes wheels with flanges proximate to the outside edges of the guideway rails. A combination of tongue tracks and a switch blade is used to route the pods onto different tracks. A pre-tension frame supports each section of the guideway and includes a smart cushion that changes the length of the section based on environmental temperature. The smart cushion is further used with a BIPV module for a roof.

A mobile solar charging facility. The present invention relates to power supply and charging techniques for a mobile electric apparatus during movement, and in particular to such a facility having a combined technique of a solar photovoltaic battery and solar thermal power generation, and matching techniques and extended applications related to light compensation, energy storage, etc. The present invention is aimed at solving the problem of charging an electric vehicle when traveling. A highly cost-effective solar power source is used for power supply. The technical solutions of a contact rail and a collector shoe are used for mobile power supply and charging. An arc extinction circuit and an energy storage super-capacitor are provided in a line, and a safety protection measure is provided. A condenser lens and a compensation lens which can increase a power generation amount and do not need to be tracked as provided for solar power generation.

The application relates to a wall element for a noise protection wall, wherein: the wall element has a body and at least one outer face; the body has a support towards the at least one outer face; at least one solar panel is arranged on the support and is connected to the body; the solar panel is inclined relative to a vertical in the direction of an upper face of the wall element; the body has on the at least one outer face at least one sound absorption surface which can be directly reached by incoming sound; the sound absorption surface is inclined at least in some sections relative to the vertical and/or relative to a longitudinal direction of the wall element; the area of the sound absorption surface is at least equal to the area of a visible face of the wall element.

The present disclosure provides systems and methods for improved bifacial solar modeling. A method may comprise measuring an albedo of a surface on which an array of bifacial solar modules is disposed and setting an albedo parameter of a bifacial gain model. The method may further comprise measuring a backside irradiance of the array and setting a backside irradiance parameter. The method may further comprise setting a shed transparency parameter using the measured backside irradiance and a geometric model of the array. The method may further comprise setting a rear shading parameter using a shading model of the array. The method may further comprise computing an expected bifacial gain of the array. The method may further comprise determining an actual bifacial gain of the array. The method may further comprise setting a rear mismatch parameter to minimize a loss function of the expected bifacial gain and the actual bifacial gain.

A light-emitting sign device according to the present invention comprises: a solar cell; a battery module comprising at least one battery in which power generated by the solar cell is stored; a light-emitting module for emitting light by the power supplied from the battery; a front panel optically coupled to the light-emitting module; and a controller for applying, to the light-emitting module, a target mode determined, from among driving modes, on the basis of an average value of solar cell voltages measured for a certain period with respect to the solar cell and a voltage value of a battery voltage measured at a certain time with respect to the battery module.