Sublime

We need very large (multi-gigawatt-hour) storage for big cities and megacities, but so far the only viable option to serve them is pumped hydro storage (PHS): it uses cheaper nighttime electricity to pump water from a low-lying reservoir to high-lying storage, and its discharge provides instantly available generation.[76] With renewably generated e

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certain respects, the retirees were cut in the mold of Teddy Roosevelt: they tried to further his mission to protect public land not for pristine wilderness but for the benefit of future generations. The principle of conservation has a longer history in Pennsylvania than almost anywhere else in America. The nineteenth-century movement arose out of

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