Re: attn PV if he's still around.


"Steve Walker" <fusion640@xxxxxxxxxxxx> wrote in message
news:X9udnec_CsHMKNPQnZ2dnUVZ_o6dnZ2d@xxxxxxxxxxxxxxx
of tanks. Hydroelectric stations rarely use all their input power (water
flow) to generate electricity. What water is not needed (when demand is
lower) is bypassed and dumped.

A major exception is at Grand Coulee where during off-peak periods, excess
water is pumped upwards ~ 280 ft in elevation from Lake Roosevelt and into
Banks Lake--( an ancient, previously dry lakebed )

--Then, if peak requirements exceed main powerhouse capacity, the flow can
be reversed, with the pumps now functioning instead as generators.


.

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