Re: [emix] So what does an offer (as opposed to a contract) for aresource look like?

[Girish Ghatikar <gghatikar@lbl.gov>]

Toby,
Good start -- Some comments. 

One important piece missing in offer I see missing is the "when?" I may be able to offer on Thursday and NOT on Friday -- we're assuming that the offers will be everyday? Can I set my offer for a certain period?

Precisely describing the ramp rate (up or down) of x kW/minute may not be trivial and requires a sophisticated telemetry and forecasting instrumentation/automation -- are we requiring that? Should we just say I can move from W to X/Y/Z for h hours for $d? 

Also are we assuming that the generation capacity = transmission and/or supply capacity? This may change based on electricity markets and to whom the offer (by buyer) is made. 

Thanks,
-Rish

On Sun, Oct 17, 2010 at 5:19 PM, Toby Considine <Toby.Considine@gmail.com> wrote:

A contract may say I warrant that in 15 minutes I will go from load A to load B and sustain for two hours.

 

An offer may say that at my current load W, I can move to a load of up to (down to) Y at a rate of at x KW / minute. I can sustain that level for up to 6 hours, but I need a minimum of j$ to bother at all.

To go beyond Y, I can move to a load of up to (down to) Z at a rate of at x KW / minute. I can sustain that level for up to 3 hours, but I need a minimum of k$ to bother at all.

 

This gives the buyer the option of buying any load between W and Z.

 

Information structures we have already developed enable precise specification of what the buyer actually contracts. We can do this while making no essential distinctions between generation capacity and DR capacity.

 

What do folks think the offer/advertisement looks like, with conditionals, with the hints. Ideally, a resource could change its mind, bring other assets to bear, change, and advertise / register that at any time. (Not implying the regulatory hurdles in place, just discussion the informational capabilities).

 

Perhaps we need some examples to walk through…

 

tc

 

 

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“It is difficult to get a man to understand something, when his salary depends upon his not understanding it” -- Upton Sinclair.

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Toby Considine TC9, Inc OASIS Technical Advisory Board TC Chair: oBIX & WS-Calendar TC Editor: EMIX, EnergyInterop U.S. National Inst. of Standards and Tech. Smart Grid Architecture Committee

Email: Toby.Considine@gmail.com Phone: (919)619-2104 http://www.tcnine.com/ blog: www.NewDaedalus.com

 

 

-- 
Rish Ghatikar
Lawrence Berkeley National Laboratory
1 Cyclotron Road, MS: 90-3111, Berkeley, CA 94720
GGhatikar@lbl.gov | +1 510.486.6768 | +1 510.486.4089 [fax]

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