The international crisis is proving to be the best friend of those who advocate the urgency of a sustainable economy in environmental terms. Recent calculations show that the 2.2 billion euros announced in the 20 largest economies in the world to improve the economy, about 15%, or 341 billion, are dedicated to investments in renewable energy, energy efficiency of buildings and reducing emissions of greenhouse gases in particular transports. Until recently, the warnings about the risks of climate change were confined to a small group of scientists who, on occasion, get the news. But in recent years, the scenario has changed. For you who like to invest in the future of renewable energy, speficaly in the Solar sector here is a table that I got today that ranks 21 solar stocks based on market capitalization and lists key data.