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Re: [Phys-l] Efficiency problem



Fascinating! This points out the complications of the word 'efficiency'.
This project:

The NYPA had to gain the right to 550 acres of Tuscarora Indian Reservation in order to build the 1,900 acre, 22 billion gallon reservoir and did so in 1960 through a United States Supreme Court decision.[1] [4]
During construction, over 12 million cubic yards of rock was excavated and twenty workers had died.

was needed in order to maintain the daytime flow of the Niagra Falls.
TVA doesn't have that burden - so they can generate when the electric demand is highest.

This Niagra project also points out the ecologic/sociologic burden of creating pumped storage 'ponds'.

Efficiency includes allowing honeymooners to see maximum flow when maximum generation would be called for.


At 7:40 PM -0400 5/29/10, Vern Lindberg wrote:
Maybe your hydro plant does not use pumped storage, but mine does

http://en.wikipedia.org/wiki/
Robert_Moses_Niagara_Hydroelectric_Power_Station


On May 29, 2010, at 7:06 PM, chuck britton wrote:

> Hydroelectric plants don't need pumped storage for smoothing.