When hydroelectric power isn’t reliable, people typically turn to fossil fuels, says Brian Tarroja, an energy researcher at the University of California, Irvine. “You do want to build new assets, more renewable energy, more storage, more flexibility and all that stuff,” he says. … That could mean plants that work with lower amounts of water. Even more crucial, he says, is making sure that other renewable energy sources are built up as well. Otherwise, shortcomings in hydropower will continue to mean sliding back into fossil fuel use. Read More