A solar light is provided in the form of a brick so that its housing has the same dimensions as a normal paving brick. A top of the housing is transparent to allow sunlight to enter the housing and illumination provided by LED's to pass out of the housing. The solar light housing in effect forms and is positioned in use as a brick in any structure made up otherwise of normal bricks.

A solar generator utilizing both direct and diffused solar radiation to generate electrical and thermal energy comprising a diamond shaped enclosure, a spheroid solar cell array internal to the diamond shaped enclosure, air circulation means to cool the spheroid solar cell array and vent the hot air exhaust to a water storage tank or other facility and various control devices.

A solar collection device and method including a corrugated front surface and a plurality of fins for refracting and concentrating solar radiation on a photovoltaic cell. The device uses a clear material to refract and concentrate solar radiation and conductively cool the system. A modular system of solar collecting devices which employs a plurality of devices connected to one another to provide a large power output, simple assembly, replaceability, and expandibility is also disclosed.

The invention relates to a space heating system comprising an air cooled solar collector, a heat store, air ducting, a forced draught mechanism valves, auxiliary heating means and a control system. According to the invention the auxiliary heating means includes a heat pump. The heat pump and heat store are located in a thermally insulated air-tight housing divided into different regions for the evaporator, condenser and heat store. The heating system is operable in a mode in which it circulates ...

A solar cell (10), preferably of silicon, having a semiconductive substrate (1) on one side of which an electrical field is provided by, for example, an MIS contact (1, 2, 3) to cause a separation of charge carriers generated by light energy. The minority charge carriers are drawn into the metal (3) of the MIS contact, whereas the majority charge carriers are discharged via ohmic contact zones (4) arranged on the opposite side of the semiconductive substrate. At least one passivation layer (5) i...

A solar evaporator for use with Stirling engines consisting of a dish shape hollow body having wicking containing a vaporizable liquid heating medium. The body has a pair of separate chambers to reduce the distance that capillary pressure is required to pump the heating medium and the chambers are thermally coupled by the wicking so that the temperatures in the chambers is at all times equalized.

A solar energy collector comprising a solar energy absorber, a light transmitting top plate spaced apart from and in a plane parallel to the solar energy absorber, and an array of light transmitting cells intermediate to and in a plane perpendicular to the top plate and solar energy absorber. The collector may also include a light transmitting bottom plate intermediate the solar energy absorber and the array of cells. The bottom surface of the top plate or bottom plate, preferably the latter, is...

A solar oven includes an oven chamber having an open end and an interior cooking chamber. A collapsible reflector assembly, having a plurality of hinged reflective panels, can be folded to a collapsed position for storage or transport, or opened during use to reflect additional sunlight through the open end and into the interior cooking chamber. A transparent door mounted over the open end retains heat within the interior cooking chamber, and a portable frame assembly supports the oven chamber f...

A solar oven. A rectangular cooking pan has a bottom and four side walls and is open at the upper end. It is in an exterior casing having a bottom and four side walls, and having an outer coating to lower the heat absorption. A body of insulation lies between the cooking pan and the exterior casing; the top edges of the body of insulation, the casing, and the cooking pan are coplanar to provide a rectangular shelf. A glass-supporting frame encloses and protects a sheet of low-iron, heat-conducti...

Proposed is a silicon solar cell with a substrate body on one side of which an electrical field is generated by an MIS contact to cause separation of charge carriers generated by radiation energy. The minority charge carriers are drawn off in the metal of the MIS contact, whereas the majority charge carriers are conducted away by ohmic contacts arranged on the opposite side. The ohmic contacts are located on elevated areas relative to the substrate surface. Moreover, the side of the substrate bo...