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Subject: RE: [energyinterop] Observations from the Appliance workshop
David, Thanks for the observations. For fun, let’s
suppose you have several of the items mentioned below: AC, pool pump, dryer,
hot water, and oven, and some friends are coming over for dinner. You might
say:
Seems to me hard for any automated system
to do, let alone an isolated appliance with limited computational abilities. But if I had a home EMS, I could tell the
EMS provided the appliances used U-SNAP or another method of communication to
the Thoughts? Thanks, Larry From: Holmberg, David
[mailto:david.holmberg@nist.gov] All, I
attended the EPRI “DR-Ready Appliance Workshop” yesterday in Basic
agreement on what “smart grid ready” means: ·
Can shed ·
Can shift ·
Can communicate ·
Can understand SEP (or, as I
observed, some standard data syntax and semantics and transport)—EPRI and
U-SNAP are pushing for a standard connector that would allow plugging in an
external comms chip. But you still need the app layer. ·
Security Other
observations: ·
Of course, how you accomplish the
above for specific device classes (in different regions, see below) might need
some definition when it comes time to do compliance testing. And what kind of
signal are you going to feed an appliance to prove it can shed/shift, and how
much? Maybe you need a standard forward price curve representative of different
kinds of typical peaks. Maybe you need a standard forward mode signal, similar
to what the DRAS feeds to the Simple Client in OpenADR. ·
Another model that was advocated
(not by the appliance manufacturers nor by me) is having more/most of the
intelligence at some ·
I realized that there are perhaps
limits on how universal appliances can be. DR programs have very real
differences in different utility territories due to very real weather and
regulatory differences. AC is all that matters in ·
Appliance manufacturers want to
hear what it is worth to the grid. I can give you 5kW for 15 min, 2kW for an
hour, 1 kW for 8 hours. What’s it worth to you? The appliance
manufacturers haven’t gotten this data yet. David
Holmberg 301-975-6450 |
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