NOVELTY - A dynamic solar array comprises photovoltaic panels; thermally insulated circulating fluid loop containing circulating fluid; two fluid reservoirs (44, 46), each containing fluid of different temperature; heat exchanger (50) to transfer heat from one fluid of higher temperature to fluid of lower temperature to achieve an intermediate temperature for the circulating fluid; and a computer (42) capable of adjusting the heat exchanger. The intermediate temperature is selected by the computer to increase, decrease, or hold steady the electrical output from the photovoltaic panels.    USE - A dynamic solar array for controlling the electrical output of a photovoltaic array (claimed).    ADVANTAGE - The dynamic solar array allows the temperature of the circulating fluid to be controlled, thus enhancing the control of electrical or power output from the photovoltaic solar array.    DETAILED DESCRIPTION - A dynamic solar array (40) comprises photovoltaic panels; thermally insulated circulating fluid loop containing circulating fluid, in thermal contact with the photovoltaic panels; two fluid reservoirs (44, 46), each containing fluid of different temperature; heat exchanger (50) to transfer heat from the fluid at a first temperature and the fluid at a second temperature to achieve an intermediate temperature for the circulating fluid; and a computer (42) capable of adjusting the heat exchanger such that the intermediate temperature can be any temperature between the first temperature and the second temperature. The intermediate temperature is selected by the computer to increase, decrease, or hold steady the electrical output from the photovoltaic panels. The apparatus further comprises temperature sensors located at various points along the circulating fluid loop to provide feedback to the computer; another heat exchanger for recovering heat from the circulating fluid after traversing the photovoltaic array; another one heat exchanger for recovering or reusing heat from the circulating fluid after traversing the photovoltaic array; and light level sensors (54) to provide feedback on ambient light levels to the computer. The fluid in each reservoir is water. The heat transfer device is a valve for mixing fluids. The photovoltaic panels contain light concentrating elements such as lenses or mirrors. An INDEPENDENT CLAIM is included for a method for controlling the output of a photovoltaic array.    DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of an apparatus for controlling the electrical output of a photovoltaic array.    Dynamic solar array (40)    Computer (42)    Fluid reservoirs (44, 46)    Heat exchanger (50)    Light level sensors (54)