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:]
Sent: Monday, April 26, 2010 10:58
AM
To:
Cc:
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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