The invention concerns a solar energy collection apparatus which is capable of producing electricity and hot water. The. apparatus (10) includes a rigid support structure (14) which can be mounted to form part of a roof cladding structure. It includes rigid support components (16) made of thermally conductive material which are connected releasably to one another. Photovoltaic (PV) cells (42) mounted on the components of the support structure in heat transmitting relationship with the components. Thermally conductive conduits (48) are provided. These are connected to the components of the support structure in heat transmitting relationship with the components and are arranged to convey water to remove heat from the PV cells via the components and conduits. A removable, light- transmitting cover is spaced above and extends over the PV cells.