Browsing by Author "Raineri, Ricardo"

Now showing 1 - 6 of 6
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    Asset life and pricing the use of electricity transmission infrastructure in Chile
    (ELSEVIER SCI LTD, 2010) Raineri, Ricardo
    Beyond the different approaches to set regulated prices for the use of infrastructure, a key parameter to determine regulated tariffs is the concept of asset life and how it changes with changes in the economic and regulatory context, which determines the optimal infrastructure investment and replacement policies. In this paper we look at the effects that changes in demand, the presence of substitutes and complements, the regulatory framework - both a pro or an anticompetitive framework -, scale economies, and the investment planning horizon, have on the economic service life of an asset and the tariffs for its use. We find that as the electric industry becomes more competitive, a negative effect on the economic service life of electric electricity transmission should be expected. Also, numerical experiments illustrate an inverse relation between scale economies on investment and the ESL of electricity transmission infrastructure. Further, we look at the biases on optimal investment that happen when optimal plans do not observe the life cycle of the investments and the ESL of the equipment, as well as the inconsistency and biases on optimal investment and replacement policies that might result when the Social Planner optimal investment plan lacks of a long-term commitment. (C) 2009 Elsevier Ltd. All rights reserved.
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    Combined Cycle Unit Controllers Modification for Improved Primary Frequency Regulation
    (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 2010) Carmona, Sergio; Rios, Sebastian; Pena, Hector; Raineri, Ricardo; Nakic, Goran
    During the past few decades the combined cycle unit dynamics and its associated controllers have become an important research subject. It has now become necessary to understand the operation and existing control strategies for such combined cycle units; this of course is if we are to undertake a comprehensive evaluation of their performance under system disturbance status. This paper focuses on the frequency regulation performance. Its main contention is that an improvement of the control strategies will 1) ensure a better dynamic response to typical system contingencies, 2) deliver a better primary frequency regulation, and 3) maintain the internal machine variables within safe operational levels. The proposed control strategies were applied over the IEEE 14-bus system and our readings showed that modifications of the control strategies do influence better primary frequency regulation responses of the combined cycle unit within limits of a safe operation of the electric system and unit alike.
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    Efficient capacity investment and joint production agreements in an oligopolistic electricity market: The HidroAysen joint venture project
    (ELSEVIER SCI LTD, 2010) Raineri, Ricardo; Contreras, Gonzalo
    We develop a model for a power market with the characteristics of the Chilean power supply industry, which is an integrated system with a system operator (SO) with a vast authority to define the dispatch of the system. We evaluate whether a large joint power generator project made up by the two largest power generators is an anti-competitive project. Considering four investment technologies for power generation, namely, hydro, coal, diesel, and an advantageous hydro technology which can only be built in a large scale (HidroAysen) for the joint venture case, we use an oligopolistic Cournot model and a Benevolent Social Planner, both calibrated to the Chilean power industry, in order to assess the efficiency of alternative investment strategies and conditions whether the HidroAysen joint venture project can be barred to be judged as anti-competitive. Results suggest that the joint venture is an efficient investment and there is a pro-competitive behaviour on the part of the two power generators, and that there are benefit to consumers, who should expect non-increasing energy prices as a result of the advantageous hydrotechnology. (C) 2010 Elsevier Ltd. All rights reserved.
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    Extractives: challenges and opportunities for the south in the energy transition
    (2024) Cohen, Adam; Raineri, Ricardo
    Latin America has abundant natural resources, giving the region an advantage in extractive industries and agriculture. However, this reliance on commodities exports and traditional economic sectors poses challenges to diversification, value-added growth, and environmental sustainability. In response to these challenges, Chile called in an international bid to establish a Clean Technology Institute to enhance valueadded and advanced clean technologies in extractives and lithium, taking advantage of the abundant solar radiation. This paper examines the governance challenges in Chile, which are similar in other countries, in embracing the opportunities of clean technologies and transitioning towards a greener and more innovative economy. The study focuses on Chile's Clean Technology Institute, exploring its role in enhancing the value of natural resources, fostering economic growth, creating jobs, and contributing to global energy security. The research highlights the critical role that a national lab can play in a country's research and development ecosystem. It emphasizes the need for a planned and mission-oriented approach with clear targets and milestones and objective management supporting the country's long-term goals. Furthermore, it discusses the importance of integrating workforce development, investment in research and development, and enhancing institutions to create an innovation-friendly environment. The paper concludes on the importance of transparent and accountable governance practices for the success of a country's innovation agenda. By leveraging its natural resources and fostering a culture of innovation, Chile and other Latin American countries can become global leaders in clean technologies, driving sustainable development and contributing positively to the world economy.
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    From a bundled energy-capacity pricing model to an energy-capacity-ancillary services pricing model
    (ELSEVIER SCI LTD, 2008) Raineri, Ricardo; Arce, Rau; Rios, Sebastian; Salamanca, Carlos
    In this paper, we extend the Chilean power generation pricing mechanism, with capacity and energy payments, to one where ancillary services (AS), as frequency regulation and voltage control, are explicitly recognized. Adequacy and security attributes of the electric system and the public good characteristics of AS are set within the payment structure to distribute the financing of AS among those who benefit from their provision. The contribution to finance the provision of AS is determined assessing the value assigned to the system security by each agent, following what's an efficient pricing mechanism in the presence of public goods. (C) 2008 Elsevier Ltd. All rights reserved.
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    Integrating Large Wind Farms into Transmission Planning of Hydrothermal System
    (ASCE-AMER SOC CIVIL ENGINEERS, 2009) Raby, Mauricio; Rios, Sebastian; Jerardino, Samuel; Raineri, Ricardo
    This paper is aimed at presenting a methodology leading to the incorporation of large wind farms to the transmission planning of hydrothermal systems. We resorted to a simulation program for an optimum operation of a generation-transmission system based on stochastic dual dynamic programming and incorporated the wind energy features as well as undertook the simulations. This work was applied to an existing hydrothermal system; chiefly for evaluating the wind farm impact in three specific areas: the network expansion, the energy cost, and the effect on the reservoir water level.