In this work, authors estimate and identify a set of benefits and costs that Small Distributed Generation (PMG/PMGD) has brought to the National Electric System (SEN). Using Unit-Commitment and Hidrothermal Coordination optimization models, authors ran simulations of an alternate scenario where PMG/PMGD were never installed, and a Base Scenario with SEN capacity as it is in reality. The results indicate that PMG/PMGD allow to diminish coal -based generation, operational costs and GHG emissions. On the other hand, the main costs identified were: increment of both secondary reserve requirement and start-up and shutdown costs. Also, a theoretical maximum for the Stabilized Price Mechanism cost was estimated on 9.5 million US$.


Sierra, Erick;  Benavides, Carlos;  Matus, Marcelo

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