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Since 2004 changes in the regulatory framework of the Chilean public and electricity sectors have been taken place (19940 law in March 2004). Transparency rules must be following by the market agents in pricing procedures of the electricity market. Consequently, technical, economical, and reliability data of the Chilean power system are available for simulation and optimization purposes. The Chilean...
A common practice for the Ex Post LMP calculation at a number of US ISOs uses a small constant range, typically from -2.0 MW to +0.1 MW, as each generator's lower and upper bounds. However, this paper shows that this common practice lacks theoretic justification and may lead to inconsistent results. For example, if the ex post dispatch results are identical to the ex ante dispatch schedules, it is...
This paper studies the problem of congestion management model that based on quoted price adjustment in the real-time electricity markets, dealing with two cases : opening the generator side only and opening the generator side and load side simultaneously, introduces the congestion factor and establishes a novel optimal congestion cost model for each case. Furthermore based on the max-mini theory,...
In electricity markets, the network is expected to transfer more power to promote profit, but the transfer capability will be affected by uncertainties. In order to quantify the probability and consequence of these uncertainties, the theory of risk is proposed to assess the available transfer capability (ATC). The means clustering method is used to layer the ATC values considering the uncertainties...
This paper focuses on the development of a model for interruptible load (IL) procurements within the operating reserve where energy and reserve are jointly dispatched. In this paper a stochastic mixed-integer linear programming model is utilized. Both spinning reserve and interruptible load are taken into account as the operating reserve services. The characteristics of the procurement of interruptible...
Reserve plays an important role in maintaining power system reliability and security. It has practical significance and applicable value taking interruptible load for one kind of reserves to ensure power system reliability and optimize the resource in the electricity market environment. At present, interruptible load has participated in some reserve markets together with generator, but the existing...
A mathematical model for describing large-scale long-term generation scheduling in electricity market environment is presented, with the bidding strategies of generation units under different load levels and maintenance constraints taken into account. During the last few years, energy saving and emission control has become an important issue with extensive concern, especially in China, so emission...
This paper addresses the quantification and allocation of peaking costs of hydrothermal power systems under electricity market environment. Mixed-integer linear formations of market scheduling of hydrothermal power systems is described, with the maximum ramping up/down limits and minimum start/off time limits of thermal generators, as well as the generation quantity and hydraulic vibrations of hydropower...
Utilities must ensure that they have adequate generator reserves to allow for possible plant outages and electricity demand forecast errors. If an excess of plant is committed, then this will result in unnecessary fuel usage. This will result in an increased cost of producing electricity. On the other hand, if too little plant is committed then expensive quick start plants such as gas turbines may...
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