Mirror satellites in polar orbit beaming sunlight to terrestrial solar fields at dawn and dusk

Large terrestrial solar electric power fields are being built around the world. However, sunlight is only available during normal daylight hours but not in the evenings. If lightweight mirrors can be deployed in space in a sun-synchronous dawn/dusk orbit, these mirrors can reflect sunlight down to these terrestrial solar farms to provide solar electricity in the evening and early morning, extending the field operating hours and reducing the cost of solar electric power. The idea of mirrors in space reflecting sunlight to earth is not new. What is new here is the idea of a constellation of 18 mirror array satellites in a 1000 km high sun-synchronous dawn/dusk orbit in combination with multiple 5-GW solar farms distributed around the world. In this scenario, the projected payback time for the mirror constellation given the additional revenues from the multiple solar fields is approximately 2 years.