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I guess it depends on how you price reliability. Solar is cheaper but then factor in the cost of storing solar for 24 hours and it stops looking cheaper. Of cou
by rsj_hn 5y ago
I guess it depends on how you price reliability. Solar is cheaper but then factor in the cost of storing solar for 24 hours and it stops looking cheaper. Of course if you are OK with the power not being reliable then you don't need the battery.
> At that kind of price point, you are better off building an interconnect to Norway and straight up importing hydro power
Except there isn't enough hydro power in Norway to replace France's nuclear production, so looking at the current spot price of a non-scalable resource like hydro doesn't tell you much. That's the problem with hydro -- there are only so many resources to exploit. I'm also not going to touch how you value energy independence, but there is a value to it. Of course importing oil is not energy independent, but you can import oil from many countries, so that is more resilient than a fixed interconnect to Norway.
What France could do is try importing LNG or coal or oil, but if the restriction is low carbon power, then you are stuck with nuclear or having the lights go out. This reality is why Germany is importing gas and using coal, and complaining about nuclear isn't going to change that reality.
- tuatoru 5y ago> factor in the cost of storing solar for 24 hours and it stops looking cheaper. Engineering research on grid-scale storage has barely begun. It's really no more than ten years old, except for pumped hydro. Before that it was just ideas and concept studies. Already storage is cheaper than gas peaker plants for some short-run uses according to Lazard. And there are some promising, cheap technologies for other uses (longer duration): iron-air batteries, aluminium-air batteries, latent heat and sensible heat storage (air liquefaction; hot rocks), various flow batteries. Look at the trends, not what the costs were two years ago. Once someone starts to look into this stuff properly, the costs go down quickly. Edit: and if the perovskite R&D comes up with the goods, we'll have dual-layer (2x output) PV panels for the same cost (or less) as single-layer Si panels.