NOVELTY - A collector panel assembly includes photovoltaic grid, interconnected heat transfer tubes and Fresnel lenses. The grid converts solar energy to electrical energy and acts as thermal radiator when assembly is in radiant cooling mode. The tubes convert solar energy to thermal energy. The lenses concentrate the solar energy on to the grid and function as passive solar tracker.    USE - Used for thermal radiant cooling and simultaneously converting solar energy to electrical power and for converting solar energy to electrical power and thermal energy.    ADVANTAGE - The collector panel assembly provides maximum efficiency to improve electrical energy conversion in cold climates or winter condition.    DETAILED DESCRIPTION - A collector panel assembly comprises rectangular box enclosure, top cover, photovoltaic grid, thermal collecting/radiator plate, interconnected head collecting tubes, electrical energy distribution mechanism, temperature sensor, Fresnel lens assembly, set of lens retainers and lens supports. The top cover is for an open top of the box and to transmit solar energy. The grid is positioned within the box below the cover to convert solar energy into electrical energy. The thermal collecting/radiator plate is position within the box to convert solar energy into thermal energy. The tubes are disposed on a plane below the thermal collecting/radiator plate but coupled to the plate through a thermally conductive material. The conductive material collects and imparts the thermal energy in a fluid disposed within the heat collecting tubes to provide a source of thermal energy. The energy distributor collects electrical power from the photovoltaic grid and transfers it out of the box enclosure through an interface with building plant electrical power system. The temperature sensor is on the fluid discharge outlet of the rectangular box enclosure for use in discharge fluid temperature control and for photovoltaic grid temperature control. The lens assembly consists of three lenses. Each lens is held by two lens retainers. The supports have openings mounted on each side of the box enclosure whose length matches the enclosure.    An INDEPENDENT CLAIM is included for controlling discharge temperature of collector panel assembly comprising converting fluid temperature to a resistance value by the temperature sensor, converting the resistance to an analog voltage using a bridge circuit within a microprocessor-based controller device and converting the analog voltage into a digital voltage using an Analog to digital converted with the microprocessor based controller device. A proportional-integral-derivative (PID) control calculation converting temperature value to a proportional flow rate within a microprocessor-based controller device. An analog output valve of desired fluid flow rate is set within a microprocessor-based controller device. This value is sent to proportional valve positioner over a pair of wires. A flow control vale position is positioned with the valve positioner. A vale trim is adjusted to desired flow rate by a mechanical connection to the positioner.    DESCRIPTION OF DRAWING(S) - The drawing illustrates the collector panels installed in a system of primary components employed to provide simultaneous electric power and heat from single system using single set of solar collection panels.