The ONS (National Electric System Operator) initiated an institutional and technological reorganization project aimed at the creation and autonomous management of the electroenergetic computational models used in the planning and operation of the SIN (National Interconnected System).
The initiative, called the Organizational Redesign Project for Technological Independence of Electroenergy Models, is being conducted in partnership with the consultancy firm A&M (Alvarez & Marsal) and marks a new step in the search for greater independence, transparency and operational security, the Operator points out.
The models that support optimization, dispatch, security, and electrical and energy studies are considered critical assets for the stability of the Brazilian system.
To date, most of these tools have been developed by third parties or adapted from foreign solutions, which, to a certain extent, limits the ONS's technical autonomy and capacity for innovation.
Storage and distributed energy resources are among ONS’s priorities
The new program is estimated to last ten months and includes a complete organizational redesign, the implementation of new governance and technological innovation mechanisms, and the development of a medium-term strategic plan (three to five years) to consolidate the operator's self-sufficiency in the creation and evolution of its own models.
Among the planned steps, the ONS will promote consultations and meetings with sector agents, research institutions, and regulators, with the aim of mapping trends and identifying opportunities for collaboration.
The proposal is to build a technical ecosystem capable of combining internal expertise, collaborative innovation, and integration with academia and industry. The justification for the project goes beyond operational efficiency.
Amid new structural challenges in the electricity sector, such as the advancement of intermittent renewable sources and the rise of DG (distributed generation), the ONS has been under pressure to improve its simulation and control tools.
Recently, the operator's chief operating officer, Cristiano Vieira, warned that the disorderly expansion of DG has reduced the system's net load, compromising dispatch response capacity and increasing the risk of blackouts during peak solar generation times.
The idea is that creating its own models will allow the ONS to simulate complex scenarios, incorporate new variables—such as storage, distributed generation, and demand response—and increase the predictability of the system's electrical behavior.
This modernization should also support parallel initiatives, such as the future battery auction and the regulation of curtailment mechanisms, topics under discussion between Aneel, MME, and Congress.
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