The invention is a power generator using intermittent fluid flow. The invention facilitates the harnessing of electric power from intermittent wind sources. The apparatus includes panels that are pivotally attached to a frame at a substantially vertical orientation and pivot towards an acute angle to the horizontal. As wind blows, the panels lift outward relative to the vertical. The motion may be transferred by actuating a hydraulic cylinder. This motion pressurizes the cylinder and the pressurized hydraulic fluid may later be transferred into electric power via a hydraulic generator. The panels may also include one or more photovoltaic cells which collect and convert sun light into electric power.