"According to the research group Bloomberg New Energy Finance, as recently as 2014 — a year before the Paris climate agreement was reached — electricity from solar and wind was cheaper than new coal and gas plants in probably 1 percent of the world. Today, only five years later, solar and wind provide the cheapest sources of new electricity in two-thirds of the world. Within five more years, these sources are expected to provide the cheapest new electricity in the entire world. And in 10 years, solar and wind electricity will be cheaper nearly everywhere than the electricity that existing fossil fuel plants will be able to provide."
Al Gore, New York Times, September 19, 2019
"Perhaps because of its technical, economic, and thermodynamic advantages, a renewable power sector would have six benefits over one reliant on conventional power plants, including (1) lower negative externalities per kWh, (2) more stable and predictable fuel prices, (3) fewer greenhouse gas emissions, (4) less water use, (5) improved efficiency, and (6) greater local employment and revenue."
Benjamin K. Sovacool and Charmaine Watts. The Electricity Journal, May 2009, Vol. 22, Issue 4, p. 99.
"Renewable energy provides 18 percent of total net electricity generation worldwide. Renewable energy generators are spread across the globe, and wind power alone already provides a significant share of electricity in some regions: for example, 14 percent in the U.S. state of Iowa, 40 percent in the northern German state of Schleswig-Holstein, and 20 percent in the nation of Denmark. Some countries get most of their power from renewables, including Iceland (100 percent), Brazil (85 percent), Austria (62 percent), New Zealand (65 percent), and Sweden (54 percent)."
Christopher Flavin in REN21 (2010). Renewables 2010 Global Status Report p. 53.