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Re:Gravitation water vortex power plant by pwg on Saturday April 21, 2018 @06:59PM (#16893822)
> >after a year of use its operation cost was approximately one US dollar per Watt capacity of output.

> Shouldn't that be installation cost, not operating cost?

Since the Wikipedia article does not say, we can not be sure. I interpreted that sentence to intend to describe the long term operating costs without consideration of the up-front installation costs (which obviously will inflate the actual long term operational costs if installation costs were amortized over the lifetime of the unit).

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