A golden age of renewables is beginning, and California is leading the way
Something spectacular is happening in the Golden State. California—the fifth-largest economy in the world—has experienced a record-breaking string of days in which the combined generation of wind, geothermal, hydroelectric and solar electricity has exceeded demand on the main electricity grid for anywhere from 15 minutes to 9.25 hours per day. These clean, renewable electricity sources are collectively known as wind-water-solar (WWS) sources. … With the future growth of both utility-scale and rooftop solar, however, California will ultimately provide 100 percent WWS during summer daytime hours as well. Solar, though, provides electricity during the day only.