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[-] flossdaily@lemmy.world 486 points 1 year ago

Good!

Anti-nuclear is like anti-GMO and anti-vax: pure ignorance, and fear of that which they don't understand.

Nuclear power is the ONLY form of clean energy that can be scaled up in time to save us from the worst of climate change.

We've had the cure for climate change all along, but fear that we'd do another Chernobyl has scared us away from it.

[-] BrokebackHampton@kbin.social 62 points 1 year ago* (last edited 1 year ago)

That is factually false information. There are solid arguments to be made against nuclear energy.

https://isreview.org/issue/77/case-against-nuclear-power/index.html

Even if you discard everything else, this section seems particularly relevant:

The long lead times for construction that invalidate nuclear power as a way of mitigating climate change was a point recognized in 2009 by the body whose mission is to promote the use of nuclear power, the International Atomic Energy Agency (IAEA). “Nuclear power is not a near-term solution to the challenge of climate change,” writes Sharon Squassoni in the IAEA bulletin. “The need to immediately and dramatically reduce carbon emissions calls for approaches that can be implemented more quickly than building nuclear reactors.”

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

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.

[-] NUMPTY37K@lemmy.world 59 points 1 year ago

Long lead times against nuclear have bee raised for the last 25 years, if we had just got on with it we would have the capacity by now. Just cause the lead time is in years doesn't mean it isn't worth doing.

[-] Resonosity@lemmy.ca 5 points 1 year ago

Did you read the quote? 15-20 years, as in decades before 1 nuke plant is built. I agree in that politicians of the past should have led us to a more sustainable and resilient energy future, but we're here now.

Advanced nuclear should still be 100% pursued to try to get those lead times down and to incorporate things like waste recycling, modularity, etc., but the lead time in decades absolutely means nuclear power might not be something worth doing.

The IPCC puts the next 10-20 years as the most important and perilous for getting a hold on climate change. If we wait for that long by not rolling out emission-free power sources, transit modes, or even carbon-free concrete, etc., then we might cross planetary boundaries that we can't come back from.

Nuclear is a safe bet and bet worth pursuing. I would argue that, along with that source from the IAEA, old nuclear is note worth it.

[-] Corkyskog@sh.itjust.works 1 points 1 year ago

How much concrete does it take to build a nuclear plant? Concrete production is currently 8% of global emissions, so if you have to scale up construction capacity 10x for the next decade, don't you end up destroying the environment with concrete before they are even operational?

[-] Resonosity@lemmy.ca 0 points 1 year ago

Great point. You need concrete for wind, solar, and li-ion battery storage too (including pumped hydro), but out of those I'd say pumped hydro is the only one that remotely compares in the amount of concrete needed for construction.

So purely looking at the emissions from materials needed to build these power sources, renewables have the edge due to less concrete. These emissions might show up elsewhere in raw material extraction like with silicon for solar, and then the rare earth metals needed for generators in wind, all the lithium/nickel/cobalt needed for batteries, etc., but I want to say that the Life Cycle Assessments (LCAs) from places like the National Renewable Energy Laboratory (NREL) in the US or the International Energy Agency (IEA) worldwide have taken that into account and still show that renewables + storage are cheaper on a carbon basis compared to fossil fuels and nuclear.

[-] Corkyskog@sh.itjust.works 4 points 1 year ago

The cool thing about concrete for renewables (excluding hydro dam) is only the very base pad needs to be virgin. You can make a lot of the rest of the base and fill material with down cycled concrete. So tearing down part of an old factory on land near the solar panels are? Crush it up and only move it a few miles over to where you need it. Rather than hauling that to a landfill where it sits forever, costing energy use to haul, and more energy use to bring the fill and other bade materials from a further destination.

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this post was submitted on 30 Aug 2023
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