emix — archive

Power storage strategies

From: Phil Davis <[email protected]>
To: [email protected]
Date: Mon, 26 Apr 2010 15:27:00 -0000





Actually, GE announced such a system last week and is hiring 400 
people in Atlanta to staff the new business. It's a substation level 
product.  Also, I have spoken personally with people at Hitachi and Samsung 
who are testing a 1 MW battery.  Such a battery from another vendor is in 
test operation behind PJM's main offices. So local here takes on a new meaning 
depending on whether it is truly behind the customer meter, or behind the 
distribution grid meters (substations and the like), or on a transmission 
system.  Theoretically, batteries of this size could replace generators 
used for voltage or frequency support.
 
Phil 
Davis




From: David RR Webber (XML) 
[mailto:[email protected]]
Sent: Monday, April 26, 2010 10:58 
AM
To: [email protected]
Cc: 
[email protected]
Subject: [emix] Power storage 
strategies



Toby,


It occurs to me that local storage can potentially play a role here - 
depending on its efficiency of course.  One can anticipate that future 
technology will offer higher % there - especially if market forces drive that 
equation.


Therefore - a future system could offset power surges by drawing on locally 
stored resources that were captured during off-peak or excess capacity.  In 
fact such a system may notify suppliers that they can "push" excess power to 
local storage at some pre-determined cost point - and of course also need to 
indicate that the storage facility is at a certain % level, or if empty - accept 
units at a higher cost rate.


DW





  
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