America Lags on Renewable Energy. Blame Regulations and Grid Connection Issues

"For years, renewable energy proponents have hoped to build a U.S. electric grid powered by wind, solar, geothermal and — to a lesser extent — nuclear power..." writes the Washington Post. In America's power markets "the economics of clean energy are strong," with renewable energy cheaper than fossil fuel plants in many jurisdictions.
But the Post spoke to the "electricity modeling" director at nonpartisan clean energy think tank Energy Innovation, who offered this assessment. "The t