Prices for solar panels have fallen significantly in recent years. Increased mass production is, of course, the biggest reason for the declining prices, but better monitoring and less waste during the production process is also a strong contributing factor.
One of the methods to monitor the deposition of thin film, the basic material for manufacturing solar panels, is Reflection High-Energy Electron Diffraction (RHEED).
Sophisticated RHEED monitoring systems are used to ensure in real-time that the production parameters are followed. If needed, corrections can be made in a very timely manner and waste avoided. This kind of monitoring helps manufacturers to significantly lower the cost of thin film, which is reflected in the price of solar panels.