(credit: US DOE) Stanford researcher Mark Jacobson likes to take current thinking about renewable energy and supersize it. Rather than aiming for 50 percent renewables, like California is, he has analyzed what it would take for each of the 50 states to go fully renewable. It would apparently involve so many offshore wind turbines that hurricanes headed toward the States would be suppressed. Now, he and a few collaborators are back with a more detailed look at how to manage the grid stability issues that come with large amounts of intermittent generators, like photovoltaic panes and wind turbines.