Abstract: The invention relates to a solar power plant having a plurality of solar panels arranged in a row and at least one holding element on which the solar panels are held one after the other. The solar panels can be displaced along the at least one holding element with engagement means from an extracted operating position into a retracted resting position.

Abstract: The invention relates to a solar installation (11) comprising a plurality of solar panels (19) that are suspended in a row between two supporting cables (15, 16). Anchor points (13, 14), at which both of the supporting cables (15, 16) are directly or indirectly anchored, is provided at least in front of and after the row of solar panels. A spacer (17) is provided at least between each row of solar panels (19) and the anchor points (13, 14), said spacers (17) maintaining the supporting cables (15, 16) at a pre-determined distance in relation to each other in the region of the rows of solar panels (19). At least one of the spacers (17) is mounted on a support (25) so as to be pivotable about a swivel axis (23), and a pivoting device (27) is provided to secure the spacer (17) and the support (25) at a specific pivoting angle in relation to each other. At least one intermediate fastening device is provided.

Abstract: A solar array in the form of a photovoltaic installation comprises a plurality of interspaced solar modules. Also provided, at a distance from the solar modules (11), are movable reflector elements (19) which have reflectors for reflecting the solar radiation and which are oriented in such a way that collected solar radiation is at least partially projected onto the receiving surface of an adjacent solar module (11).

Abstract: An ultrasonic sound beam is caused to penetrate an object to be inspected and is moved in a scanning plane of the object transversely to the axis of the beam. A B-scan display of the object is displayed on a display screen in response to echo pulses produced by the object under the action of the sound beam moving in the plane. An adjustable trace is defined on the display screen at a location which corresponds to a predetermined position of the sound beam during the movement thereof in the plane. A display other than the B-scan display is derived from echo pulses produced by said object under the action of said sound beam when the same is in said predetermined position.