LAS CRUCES, N.M.--(BUSINESS WIRE)--When President Obama (http://topics.nytimes.com/top/reference/timestopics/people/o/barack_obama/index.html?inline=nyt-per) and President Xi Jinping of China announced in November that they will commit to targets for carbon cuts, few thought changes would happen quickly. Less than two months later, Xiang Yang Institute (XYI) in Hubei, China and Focused Sun of Las Cruces, New Mexico, USA (www.focused-sun.com) are partnering in the critical area of solar microgri