Solar-thermal renewable energy with 28,000 sun-equivalent brightness

Recent article in TIME has covered Ivanph, a solar-thermal project in California desert which can generate 14 億度/yr (臺灣的總電力裝置容量為每年2800億度, 核四每年240億度). It sprawls over 16 平方公里 with three gigantic solar towers, each with 150m height and 28,000 sun-equivalent brightness. In addition to 3 towers, it has 173,000 constantly adjustable mirrors, each with the size of garage door. Unlike solar-panels on the rooftop or wind-power farms, solar-thermal is a reliable renewable energy (if located in the year-round sun-drenched desert!). However, with price of solar-panels plummeting in recent years due to a glut of solar panels made in China, solar-thermal energy is still not as cost-effective as solar-panel energy, let alone the coal-fired power plant.