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femtoinfluencer t1_j1uy5th wrote

You have good points.

I will say that solar PV needs a LOT of area to generate power in amounts that we currently use/need it as a civilization, but, blanketing far more urban surfaces with PV installations even in marginal areas could make a big dent in our energy needs. I believe this type of policy has been effective in Germany.

The other issue is that tons of new solar generating capacity would absolutely have to come with grid-scale storage for when the sun isn't shining, and that's not yet a solved problem. Researchers are working their asses off to scale up battery storage to grid scale but it's not yet ready for prime time. Another 5 to 10 years will likely solve that, but it remains an additional capital cost + logistical issue to then set up a bunch of grid-scale storage facilities, plus all the changes to the power grid to accommodate them. Edit: there are also other forms of grid storage, but they're either less developed than batteries, or have requirements that limit them to favorable geographic areas (pumped hydro and the like).

A couple things to keep in mind about nukes:

First, modern reactor designs are drastically safer than the reactors everyone thinks of when they think about nukes. Three Mile Island, Chernobyl, and Fukushima are generations-old reactor designs with many many more failure modes than current designs. Chances of accident with a major radiation release are so much less with current designs, you can't ever truthfully say zero, but they really are leagues better than the type of nuke plants we're used to thinking about.

Second, nuclear waste is largely a solvable (not solved - but solvable) problem. As long as we are using uranium for fuel, it's possible to build reactors that then burn the waste for power, the resulting waste of that process is both less in quantity and less problematic. There is also the possibility of switching to thorium for fuel, which generates much less / less bad waste in the first place, unfortunately thorium reactors haven't yet been scaled up / installed / operated for years at grid scale. So either of these solutions have a ways to go before they are actual solutions, but, at least they are possible. If new nukes do become a policy then it would be good to push that policy towards solutions like this.

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