In what is being hailed as a major achievement, Portugal just generated all of its electricity from renewable sources for more than four days in a row. According to an analysis of national figures by the Sustainable Land System Association in collaboration with the Portuguese Renewable Energy Association (APREN), from the morning of May 7 until the early evening on May 11—a total of 107 consecutive hours—"Electricity consumption in the country was fully covered by solar, wind and hydro power, " the Guardian reports.