Um estudo sobre a instabilidade causada no ambiente de livre contratação de energia elétrica devido a erros no processo de formação do preço de liquidação das diferenças

Abstract

The settlement price of differences is a tool of the Electric Energy (EE) commercialization market that serves to value the cost of energy production at different operational moments. This tool gives the trading agents, participants of the CCEE a programmable horizon of one week, where it is possible to negotiate from contracts the purchase and sale of electric energy, depending on the price quoted previously, reason for studying this work. Once there are flaws, such as data entry of units that may be unavailable for operation, or in any chain, in the weekly price formation process, there are noncomputable risks that need to be controlled and mitigated, such as the risks that the buying agents are subject if they enter into purchase and sale contracts with a settlement price of the differences and that price reduces considerably, since it is a financial market that moves an asset that has a great impact on the country's energy sector. This paper aims to detail all possible ccurrences of error in the formation of the settlement price of differences, such as unavailability of units that may be operating, or even unit that were not in operation and passed to availability. Through a strategic planning analysis, define what actions should be taken so that key drivers of impacts will not happen. Aiming at developing technology as a force item, at the same time it was possible to relate to the weakness of the analog measurement systems of the vast majority of hydroelectric plants, which in turn is linked to the insertion of dispatch values in NEWAVE divergent from the real. The second action that came out of the action plan is related to the item that was considered as second most influential in the SWOT evaluation of the problem, it was precisely the question of the standardization of preventive maintenance of all the equipment in the generation units, aiming at a science of availability correct of the agents of production, this item was correlated with the increase of the availability of the units of generation, action to improve the optimal dispatch of electric energy. The item found in the SWOT analysis action plan was the issue of not passing the impact of errors to the market by modifying agreements already in place, but rather using such errors as learning in order to make the pricing mechanism even more assertive.