Groups - microgrid_summary.pdf uploaded

[ahendry@pacbell.net]

The document named microgrid_summary.pdf has been submitted by Anne Hendry
to the OASIS Energy Market Information Exchange (eMIX) TC document
repository.

Document Description:
To try to wrap up the microgrid definition discussion I've captured in this
document the the most prevalent characteristics from previous posted
sources -- by no means an extensive set, but just enough to get a sampling
of the diversity of thinking in the area to help determine what is in scope
for EMIX -- and marked similarities and areas of
contradiction/divergence.

Characteristics that were common to most definitions are in green and what
I perceive as contradictory characteristics (they offer a view that is
contradictory to another view) are in red -- both open for discussion.  If
none of the red characteristics are of a concern to EMIX, we can discard. 
For the rest (green and black) we should decide if they are drivers for
EMIX (in scope) or not, and if so, make sure we've included support for
those features/capabilities in the spec.

The microgrid concept seems to span the breadth from literal physical
islands to virtual power plants and community choice aggregators, each with
their own scenarios for energy generation and distribution.  The areas of
agreement are the more common concepts of you can expect (DER, better
efficiency, economics, source diversification, etc).  Not much contention
there.

Areas of contradiction appear to revolve around these four topics:

1. architecture
   (some propose decentralized peer-to-peer coordination,
    others expect centralized hierarchical control)
2. two-way or one-way power flow
   (some proposed a single direction of power flow,
    others proposed the microgrid for ancillary services)
3. size
   (some propose a microgrid should be less than 1MW,
    others have no restrictions on generation capacity)
4. connection points
   (some proposed only a single connection point,
    others assumed more of a decentralized integration/connectivity)

-Anne

View Document Details:
http://www.oasis-open.org/committees/document.php?document_id=37277

Download Document:  
http://www.oasis-open.org/committees/download.php/37277/microgrid_summary.pdf


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