Abstract: Shade house for casting an adjustable shadow over a surface, the shade house including: at least one frame extending in a longitudinal direction; a first set of photovoltaic panels mounted on the frame substantially orthogonally to a same orientation axis; a second set of opaque panels, for preference photovoltaic, mounted on the frame and movable in longitudinal translation relative to the frame at least between an open configuration, in which the panels are at least partially superposed over the panels in a view along the orientation axis, and a closed configuration, in which the panels at least partially extend beyond the panels in a view along the orientation axis; and an actuation system configured to actuate the second set at least from the open configuration to the closed configuration, and vice versa, the actuation system including pulleys mounted on the frame.