Juan Antonio Cabrero is bracing for the savings he invested in a solar-energy farm in northern Spain to disappear into light. In 2008 Mr. Cabrero put up his €20,000 ($26,200) life savings and took on a €80,000 bank loan to buy part of the solar farm, pledging his home in nearby Tafalla as a guarantee. Now, because of cuts in renewable-energy subsidies the government is said to be planning, the 60-year-old Mr. Cabrero may lose both his savings and his house. The move could drive tens of thousands of struggling solar-energy companies and individual investors like Mr. Cabrero into default. --Ilan Brat and Christopher Bjork, The Wall Street Journal, 6 June 2013