TECHNOLOGY FOCUS - INSTRUMENTATION AND TESTING - Preferred Components: The apparatus further comprises a quenching unit (130) to immediately cool exit gases from the chemical reactor chamber in which the reverse-water-gas-shift reaction occurs, in order to stabilize the carbon monoxide molecule in the exit gases, an electronic controller coupled to the tracking actuator and feedback limit switches to control positioning of each mirror to concentrate the solar energy on the associated light receiver, a front surface of a reflective mirror portion of each mirror in the set of parabolic mirrors is formed by a reflective metal, and a polymer or acrylic coating on top of the front surface of the reflective metal mirror. The parabolic trough uses multiple mirrors connected together to form the trough and a series of the associated light receivers are ganged together in a frame of the trough. Each mirror with a frame construction having two axes of rotation and the frame is coupled to the tracking actuator. The unconsumed carbon dioxide gas and hydrogen molecules from the reaction are used in the recuperator to pre-heat both the carbon dioxide gas and the hydrogen molecules before entering the chemical reactor chamber. The reflective metal mirror is optically transmissive in passing wavelength bands in an electromagnetic spectrum below infra red on top of the front surface of the reflective mirror to maximize an amount of solar power concentrated into the light receivers in a desired UV and visible light spectrum while limiting generation of waste heat, and the hydrogen splitting with the tubes with the titanium based catalyst in the light receiver occurs at 50-80 degrees C and 30-50 sun concentration units. The water splitter is a tower mounted device that contains the cells. Each cell has a clear tube filled with an aqueous electrolyte solution that reacts with the titanium. The cells dissociate water and produce the hydrogen molecules in the form of gas from an aqueous solution when exposed to the solar energy, and employs an electrode made of a titanium-based element or compound with a stress-induced band-gap that is shifted and broadened to absorb both wavelengths in the visible light and the ultraviolet light spectrum. The electrode contains a substrate that has surface ripples with a sub-visible light-wavelength spatial period that causes stress in the titanium-based element or compound on the substrate in the form of a thin film and to shifts the bandgap of the titanium based element or compound to support spontaneous photoelectrolysis of the water in visible light. The electromagnetic spectrum includes the visible light and UV ray range from the heliostats into the cells in the water splitter at around 20-50 sun concentration units. The solar photovoltaic cells that receive solar energy and convert that energy directly into electricity, which are coupled to the cell as a voltage source for the photoelectrolysis cell device.