Abstract: A method for operating a hybrid collector solar system includes a heat transfer agent, which is present in a buffer accumulator, that passes via a pump into a thermal solar collector of the hybrid collector in order to heat the heat transfer agent. The pump is connected into a feed line that connects the buffer accumulator to the thermal solar collector. The hybrid collector solar system is partially filled with the heat transfer agent so that part of the hybrid collector solar system is not filled and so that the heat transfer agent is moved back and forth between the thermal solar collector and the buffer accumulator via the feed line depending on its temperature, thereby realizing an oscillating method of operation.

Abstract: A thermal stratified tank has at east one first reservoir serving as a storage chamber for receiving a heat transfer medium, and at least one second reservoir, laterally adjoining the first reservoir via a partition (14), serving as an inflow and stratification chamber (15, 16). At least one through-opening (21) is provided in the partition between the first and second reservoirs. A guiding channel (27) leads into the second reservoir for supplying heat transfer medium. The guiding channel has an outlet which is constructed and/or arranged in such a way that during operation the inflow into the stratification chamber (15, 16) is substantially horizontal. A deflector wall (19), from which the inflowing heat transfer medium rebounds, is arranged at a spacing from the outlet and substantially in the inflow direction of the heat transfer medium.