Abstract: A central lighting system for commercial buildings employing core daylighting with tracking heliostats, light beam processing, heat extraction and utilization, distribution through light pipes, fiberoptics, prisms, and mirrors. The system incorporates a central artificial light source, also with heat extraction and utilization for domestic hot water, air conditioning, or refrigeration as desired. The system includes microprocessor control and monitoring of all functions, light amplification through high frequency beam splitting, and light storage, in the form of super-insulated extreme heat.