Nuclear has to use climate crisis to justify high cost, MIT says

Nuclear energy can't compete on cost with cheap natural gas or renewables and therefore needs the help of policy makers who are willing to promote its low-emission power generation as a way to fight climate change, according to a landmark new study.

To stave off runaway global warming by midcentury, the world's current crop of leaders need to institute policies that dial down greenhouse gases emitted by power producers more than 90 percent, according to scientists at the Massachusetts Institute of Technology. The clearest way to get there may be by putting a price on carbon emissions and supporting clean technologies.

"As of today and for decades to come, the main value of nuclear energy lies in its potential contribution to de-carbonizing the power sector," reads the 246-page report published Monday. "Cost is the main barrier to realizing this value. Without cost reductions, will not play a significant role."

The study casts doubt on whether President Donald Trump's attempts to rescue money-losing U.S. reactors while undoing climate policies can succeed. A more straightforward path to supporting the would be to follow the lead of other countries that have put a price on emissions, either through direct taxation or carbon-trading markets. That would give atomic operators more room to compete against cheap gas, wind and solar.

In order to stabilize and keep temperature rises well below 2 degrees Celsius (3.6 degrees Fahrenheit) by 2050, utilities need to cut to an average of about 10 grams from 500 grams a kilowatt-hour, according to the study. Failure to deploy nuclear could mean missing enormous costs savings, especially in emerging markets like China, that still rely heavily on burning coal for electricity.

"The role of government will be critical," John Parsons, the MIT study's co-chair, said in a statement. "Government officials must create new de-carbonization policies that put all low-carbon energy technologies on equal footing, while also exploring options that spur private investments."

Feeding into the report were more than 30 researchers with backgrounds from science, government and finance. Advisers to the project include William Magwood, head of the Paris-based Nuclear Energy Agency; former U.S. Nuclear Regulatory Commission Chairman Richard Meserve; and former Goldman Sachs Group Inc. managing director James Del Favero.

MIT's assessment of the nuclear industry first appeared in 2003 and was updated in 2009. Previous versions also touted nuclear power as an answer to combating global warming.

The report criticized the European and U.S. nuclear industries for promoting "completely unrealistic" cost estimates throughout the 2000s, which contributed to the shift in investment toward new markets in Asia, Russia and the Middle East. Elevated safety concerns following the 2011 meltdowns at Japan's Fukushima plant have also hindered development.

A new generation of small, modular reactors that can be built with standardized designs and safety features could spell relief for the industry in America and Europe, according to the study, which advised regulators to earmark locations for investors to test prototype technologies.


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Citation: Nuclear has to use climate crisis to justify high cost, MIT says (2018, September 5) retrieved 31 March 2020 from https://phys.org/news/2018-09-nuclear-climate-crisis-high-mit.html
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