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Recharging the Grid with Electric Cars - Page 14

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Posted by Eeyore on April 3, 2009, 3:16 am

Alistair Gunn wrote:

WTF is 'dynamic demand' ?


Posted by Alistair Gunn on April 3, 2009, 11:12 am
In alt.energy.renewable Eeyore twisted the electrons to say:

Have all large domestic electrical draws monitor the incoming power, and
adjust down (temporarily) how much power they're consuming if the grid
frequency is dropping.  This is already done, albeit on a much larger and
less finely grained manner <http://en.wikipedia.org/wiki/Reserve_service> .
These opinions might not even be mine ...
Let alone connected with my employer ...

Posted by vaughn on April 3, 2009, 2:03 pm

It IS being done in a finely grained manner in some areas.  Here in Florida,
I can get a slightly reduced electric rate if I allow FP&L to install a
relay that will shut off my water heater and central AC (if necessary) for a
few minutes each hour.  Most folks would never notice the difference  The
system connects to the phone line via a modem.  (I can't take advantage of
that deal because 1, I have gas DHW, and 2) conserve by using window units
in conjunction with my centtral AC).

On a larger scale, our Regional Sewage Plant gets a significant reduction in
power rate by agreeing to "throw the switch" and operate off of their own
turbo-generators in times of peek demand. .


Posted by Eeyore on April 5, 2009, 10:27 pm

vaughn wrote:

NOT by varying the frequency of the mains I note.


Posted by Bill Carter on April 4, 2009, 4:24 am
 Eeyore wrote:

Its something that you could have found out about with a simple google

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