It was the winter of “Snowmaggedon” in Boston, and MIT grad students Leslie Dewan and Mark Massie had just passed their qualifying exams in nuclear engineering. Suddenly, after months of nonstop test-prep work, they had the luxury of time. “We said, we’re no longer studying 16 hours a day,” Dewan recalled, “Let’s do something new and exciting!”
As February rolled by, the two began looking at ways to bring to market different types of nuclear reactors that could solve some of the problems—especially safety and waste issues — that have dogged the traditional light-water reactors that produce nearly all of the world’s nuclear power today. “We both considered ourselves to be environmentalists, and we felt that nuclear power is the best way to shift away from fossil fuels—and from coal in particular,” Dewan said.
It’s an increasingly common perspective. “Nuclear is a non-carbon-emitting resource and it has a contribution to play in greenhouse gas emissions avoidance,” said Dan Lipman, executive director of policy development and supplier programs for the Nuclear Energy Institute, an industry lobbyist group. He echoes the sentiments of many across the nuclear industry who are hoping that a growing sense of urgency on climate issues could reinvigorate the market for their technology.
Some climate scientists and high-profile nonprofits are beginning to agree. Renewable energy is gaining ground, but it still makes up just over 13 percent of the total U.S. electric power mix. Concerns about resource intermittency, immature storage technologies, grid reliability, and land use haunt faster growth scenarios. As a result, achieving even the moderate carbon emissions reductions—pegged to a 30 percent reduction over 2005 levels by 2030—outlined by the EPA’s proposed Clean Power Plan [pdf] is expected to require both the development of new nuclear plants and extended lifespans for those that were built as far back as the 1970s.
Critics are quick to refute these claims, citing cost, safety, waste management, and time-to-market as major barriers to the large-scale adoption of nuclear energy for baseload grid power. But are these truly insurmountable challenges? If nuclear is to play a significant role in a low-carbon energy future, what will it take to make that happen?
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