nuclear-news

Does nuclear power generate GHG CO2 emissions?

Yes. More than what people expect. [Ref. 2 – Year 2021]

Quote:

“How climate-friendly is nuclear compared to other energies?

If the entire life cycle of a nuclear plant is included in the calculation, nuclear energy certainly comes out ahead of fossil fuels like coal or natural gas. But the picture is drastically different when compared with renewable energy.”

“According to new but still unpublished data from the state-run German Environment Agency (UBA) as well as the WISE figures, nuclear power releases 3.5 times more CO2 per kilowatt-hour than photovoltaic solar panel systems. Compared with onshore wind power, that figure jumps to 13 times more CO2. When up against electricity from hydropower installations, nuclear generates 29 times more carbon.”

Why does the IAEA state otherwise? It’s convenient, as simple as that.

IAEA statement at COP28: on Dec. 1^st, 2023 [Ref. 1]

 Fact check: Is nuclear energy good for the climate? NATURE AND ENVIRONMENTGLOBAL ISSUES. Joscha Weber. November 29, 2021. Supporters of nuclear energy say it can help us wean our economies off polluting fossil fuels. No surprise, it’s a heated issue. But what about the facts? Can nuclear power really help save the climate?

Link: https://www.dw.com/en/fact-check-is-nuclear-energy-good-for-the-climate/a-59853315

“Is nuclear power a zero-emissions energy source?

No. Nuclear energy is also responsible for greenhouse gas emissions. In fact, no energy source is completely free of emissions, but more on that later.

“When it comes to nuclear, uranium extraction, transport and processing produces emissions. The long and complex construction process of nuclear power plants also releases CO2, as does the demolition of decommissioned sites. And, last but not least, nuclear waste also has to be transported and stored under strict conditions — here, too, emissions must be taken into account.”

“How much CO2 does nuclear power produce?

Results vary significantly, depending on whether we only consider the process of electricity generation, or take into account the entire life cycle of a nuclear power plant. A report released in 2014 by the UN’s Intergovernmental Panel on Climate Change (IPCC), for example, estimated a range of 3.7 to 110 grams of CO2 equivalent per kilowatt-hour (kWh).

“It’s long been assumed that nuclear plants generate an average of 66 grams of CO2/kWh — though Wealer believes the actual figure is much higher. New power plants, for example, generate more CO2 during construction than those built in previous decades, due to stricter safety regulations.”

Studies that include the entire life cycle of nuclear power plants, from uranium extraction to nuclear waste storage, are rare, with some researchers pointing out that data is still lacking. In one life cycle study, the Netherlands-based World Information Service on Energy (WISE) calculated that nuclear plants produce 117 grams of CO2 emissions per kilowatt-hour

“Could we rely on nuclear energy to help stop global warming?

Around the world, nuclear energy representatives, as well as some politicians, have called for the expansion of atomic power. In Germany, for example, the right-wing populist AfD party has backed nuclear power plants, calling them “modern and clean.” The AfD has called for a return to the energy source, which Germany has pledged to phase out completely by the end of 2022.

Other countries have also supported plans to build new nuclear plants, arguing that the energy sector will be even more damaging for the climate without it. But Wealer from Berlin’s Technical University, along with numerous other energy experts, sees takes a different view.

“The contribution of nuclear energy is viewed too optimistically,” he said. “In reality, [power plant] construction times are too long and the costs too high to have a noticeable effect on climate change. It takes too long for nuclear energy to become available.”

Mycle Schneider, author of the World Nuclear Industry Status Report, agrees.

“Nuclear power plants are about four times as expensive as wind or solar, and take five times as long to build,” he said. “When you factor it all in, you’re looking at 15-to-20 years of lead time for a new nuclear plant.””

“He pointed out that the world needed to get greenhouse gases under control within a decade. “And in the next 10 years, nuclear power won’t be able to make a significant contribution,” added Schneider. 

“Nuclear power is not being considered at the current time as one of the key global solutions to climate change,” said Antony Froggatt, deputy director of the environment and society program at the international affairs think tank Chatham House in London.

He said a combination of excessive costs, environmental consequences and lack of public support were all arguments against nuclear power.”

December 15, 2023 - Posted by Christina Macpherson | climate change