[RE-wrenches] ESS Batteries

[Drake]

Thank you Glen and Matt for your ideas. I've forwarded your messages 
to my friend.

The concept of using a grid tie inverter sounds hopeful. The question 
is, "how would we limit the amperage."

It does look  like the DC-DC converters might be pricey. I guess I 
will find out!

Cheers,

Drake

At 01:50 AM 2/12/2017, you wrote:
>Greetings Drake,
>
>The answer likely varies widely depending on what he would like to use
>these battery systems for.  The gear and design used to play with
>these batteries can get rather sophisticated quickly.  A high voltage
>DC-DC Converter may be needed.  Bidirectional units exist and can
>potentially provide the coupling between the energy storage system(s)
>and the DC-AC Inverters we are already familiar with.  A recent
>microgrid project I was servicing included a Siemens Sinamics DCP unit
>to incorporate the needed bidirectional buck-boost capabilities.
>Attached is a PDF spec sheet for this gear to get a sense of what
>these components are capable of.
>
>It may be a good idea to see if any information or documentation can
>be found for the battery systems and if any details about the function
>they previously served can be tracked down.  It may be helpful to
>learn how they were used and with what other associated gear etc.
>
>This surplus purchase sounds like the makings of a fun project with
>endless possibilities!
>
>Best regards,
>
>----MATT
>
>Matthew Sirum
>P.O. Box 1227
>Greenfield, MA 01302-1227  USA
>phone: +1.413.773.0611
>email: MatthewSirum at gmail.com
>
>
>------ Original Message Below ------
>
>Drake drake.chamberlin at redwoodalliance.org
>Sat Feb 11 10:51:47 PST 2017
>
>Hello Wrenches,
>
>A friend just purchased 4 ESS MA 1428K batteries from AEP surplus. He
>got them really cheap. They are rated at 26.5 KWh with an operating
>voltage of 453 to 706 VDC!
>
>He would like to find a way to use the power from these batteries.
>Does anyone have any suggestions?
>
>Thanks,
>
>Drake
>
>Drake Chamberlin
>Athens Electric LLC
>OH License 44810
>CO License 3773
>NABCEP Certified Solar PV
>740-448-7328
><http://athens-electric.com/>http://athens-electric.com/
>
>Content-Type: application/pdf;
>         name="siemens-sinamics-dcp-en-E20001-A140-P520-V3-7600.pdf"
>Content-Disposition: attachment;
>         filename="siemens-sinamics-dcp-en-E20001-A140-P520-V3-7600.pdf"
>X-Attachment-Id: file0
>
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