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I think I came out a little strong and biased here. My apologies. Some more thoughts on this article. - They group nukes in the clean %, so today we're at 37%
by hairytrog 6y ago
I think I came out a little strong and biased here. My apologies. Some more thoughts on this article.
- They group nukes in the clean %, so today we're at 37% clean already. not bad. Going to higher clean % with mix of wind/solar expansion + new storage + dispatchable nukes is very possible and the political momentum to throw a lot of money at this is there.
- I think it's unlikely costs can be reduced much in most parts of the US if we still want 100% dispatch capability.
- It's not just about cost. We should consider paying a bit more for carbon considerations, within reason and without forgetting who gets punished by higher prices in the short term, and without compromising the 100% dispatchable standard.
- Wind/solar LCOE is approaching very low numbers, so it should be used as much as possible, but we shouldn't throw a trillion dollars from the government, as the article suggests, to shove wind/solar down the grid's throat. It's likely to break the grid and waste a load of money. Government should just ensure the markets can properly deal with higher renewables without compromising the grid. They can do this via establishing capacity markets, resiliency markets, R&D for storage tech, etc. They might also do a carbon tax to try to set the higher cost we are willing to pay from above.
- There are significant resilience, material, and regulation challenges. It's not just the energy storage for a few hours, but longer term for days and weeks. If we are a responsible society and expect smooth operations and we want to do an extreme renewables expansion, we need to pay the price to keep an idle fleet of fully dispatchable gas/nukes in addition to the renewables fleet or establish multi month storage.
- cinquemb 6y ago> I think it's unlikely costs can be reduced much in most parts of the US if we still want 100% dispatch capability. I disagree, if there was a desire to transport molten salt tanks and retrofit coal plants with supercritical steam turbines and build large molten salt storage reservoirs on such sites, we could do it today for under 5 cents/kwh for 24/7 availability. See comments [0] and [1] [0] https://news.ycombinator.com/item?id=23588691 https://news.ycombinator.com/item?id=23588691 [1] https://news.ycombinator.com/item?id=23581910 https://news.ycombinator.com/item?id=23581910