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A comment on German solar and wind are triple the cost of French nuclear, last half as long. Parent comment

Re:German solar and wind are triple the cost of French nucle... by redtexture on Sunday November 10, 2019 @12:47AM (#21496610)
Your version of head assumes discharge into bedrock. Are they building a cavern of many cubic hectares down there too?
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Re:German solar and wind are triple the cost of French nucle... by NeedMoreTea on Sunday November 10, 2019 @02:42AM (#21496934)
That seems to be the plan - enough capacity to store the whole topside lake, which seems to be planned at 500m x 500m (depth 10m). No idea how feasible or economic it will be compared to caverns from hollowing out a mountainside.
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