If you want the energy price to be independent of the reserves, then you cannot co-optimize energy and reserves. By co-optimizing, you link the energy and reserves, so the energy prices cannot be independent of the reserve costs, allocations and prices.
I suppose you could *define* the energy price in your market to be something else, independent of reserves, but this will not be a real price in the traditional sense, reflecting a sensitivity in the problem you are actually solving. -- Ray Zimmerman Senior Research Associate 419A Warren Hall, Cornell University, Ithaca, NY 14853 phone: (607) 255-9645 On Jul 5, 2012, at 6:13 PM, Santiago Chamba wrote: > Prof Zimmerman, thanks for your response > I am using runopf_w_res. I agree with you, but I want to decouple the energy > prices and reserve prices, because the reserve market is "pay as bid", i.e. > the reserve payment doesn't depend on the reserve prices, only depend on the > reserve cost. For this cause, the reserve prices must not be affected to > energy prices. > > Therefore, I want to formed the energy price independently of the reserve > price. > > Best regards > Santiago, > > > > De: [email protected] > [mailto:[email protected]] En nombre de Ray Zimmerman > Enviado el: jueves, 05 de julio de 2012 15:40 > Para: MATPOWER discussion forum > Asunto: Re: Energy price > > I'm not sure I fully understand your question ... but, if you are using the > runopf_w_res function in MATPOWER, I believe the LAM_P column in the bus > matrix should give you the correct energy price. I'm not sure what you mean > by forming the energy price "independently of reserve prices". When > co-optimizing, by definition the allocation of energy and reserves (and > therefore energy prices) are interdependent. That is, the amount of required > reserves and the relative reserve costs will affect the energy dispatch and > the nodal marginal price of energy. > > -- > Ray Zimmerman > Senior Research Associate > 419A Warren Hall, Cornell University, Ithaca, NY 14853 > phone: (607) 255-9645 > > > > > > On Jun 29, 2012, at 11:16 AM, Santiago Chamba wrote: > > > Hello Matpower community, > > I am working with joint optimization of the energy and reserve markets. The > energy market is based in marginal cost, and the reserve market is "pays as > bid". When I simulated a case with scarcity generating power, the all > capacity of power units are dispatched for energy and reserves. In this case, > the nodal price reflect of multipliers of the power unit capacity > constraints, i.e. the price is modified with regard to the reserves > constraints. > How can I formed the energy price independently of reserves price. ? > > Best regards, > > Santiago >
