Free Republic
Browse · Search
News/Activism
Topics · Post Article

To: Pontiac
These old plants were used for extra power during peak demand periods. But these old plants are small and inefficient compared to modern plants and so it is not cost effective to retrofit them with pollution controls to meet new pollution regulations.

Sorry, but these plants could not have been used only during peak demand periods. Boiled water plants, all external combustion plants are boiled water, take a minimum of three days for the smallest plants to five to seven days for the largest to get linked up to the grid and producing power. This start-up delay is why coal is almost solely used for base load generation. Peaking for peak demand is generally supplied by gas turbines and hydro, due to their rapid start-up (under 24 hours) and quick response.

20 posted on 10/06/2012 4:19:47 AM PDT by Fraxinus (My opinion, worth what you paid.)
[ Post Reply | Private Reply | To 11 | View Replies ]


To: Fraxinus
Boiled water plants, all external combustion plants are boiled water, take a minimum of three days for the smallest plants to five to seven days for the largest to get linked up to the grid and producing power.

I guess you have never heard of spinning reserve.

If hot weather is forecast these plants are started up and kept running at low power, perhaps not even on the grid, in case they are needed.

25 posted on 10/06/2012 2:15:36 PM PDT by Pontiac (The welfare state must fail because it is contrary to human nature and diminishes the human spirit.)
[ Post Reply | Private Reply | To 20 | View Replies ]

Free Republic
Browse · Search
News/Activism
Topics · Post Article


FreeRepublic, LLC, PO BOX 9771, FRESNO, CA 93794
FreeRepublic.com is powered by software copyright 2000-2008 John Robinson