New Agreement Between Brazil and Uruguay Promises to Transform Energy Exchange with a More Powerful Transmission Line, Raising Capacity to 525 kV, Reducing Risks of Blackouts and Allowing Greater Export of Surplus Electricity!
Brazil and Uruguay have just taken an important step in energy cooperation. The new agreement, signed in Montevideo, promises a more efficient exchange of electricity between the two countries, with a more robust and secure infrastructure. But what does this actually change in practice? How can this decision impact the energy sector on both sides? Let’s understand better.
A New Milestone in Energy Cooperation
The major change lies in the delivery point of the energy. Now, transmission will be done through the Candiota II substation in Rio Grande do Sul, which has a capacity of 525 kV. For comparison, until now, energy passed through the Presidente Médici substation, which operates at 230 kV. In other words, we are talking about a considerable increase in outflow capacity.
With a more powerful transmission line, Brazil will be able to export more surplus energy to Uruguay, making better use of its thermal and hydroelectric generation. On the other hand, Uruguayans will have a more stable and reliable supply. In practice, this means less risk of blackouts and greater efficiency in energy use.
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In addition to allowing a larger volume of energy circulating between the countries, the new line brings more security to the system. The energy exchange becomes more stable, with a lower risk of interruptions. For the end consumer, both in Brazil and Uruguay, this could mean a more reliable supply and possibly reduced costs in the long run.
The Importance of Physical Interconnection

For this change to actually come into operation, it is necessary to ensure the connection between the Candiota and Candiota II substations. The Ministry of Mines and Energy (MME) has already confirmed that it will take all necessary steps to ensure that this interconnection becomes a reality as soon as possible.
This process involves technical adjustments and investments to adapt the electrical infrastructure. The good news is that this physical interconnection will be the last necessary step to enable the new flow of energy between the countries.
For Brazil, this change means more flexibility in energy export, which optimizes the use of available resources. For Uruguay, the advantage lies in the guarantee of a more predictable and secure supply. It’s one of those agreements where everyone benefits.
The Role of Eneva and Bid Comercializadora
Another interesting point of this new scenario is the entry of Eneva and Bid Comercializadora into the energy import and export market. These companies have been authorized by the government to trade electricity not only with Uruguay but also with Argentina.
According to Eixos, the permits have been published in the Official Gazette and come with clear rules. The operations of these companies cannot, under any circumstances, compromise the safety of the National Interconnected System (SIN). In other words, all trading must be done without affecting internal supply.
To ensure that everything runs smoothly, Eneva and Bid Comercializadora must comply with a series of requirements, such as registering with the Electric Energy Trading Chamber (CCEE) and paying the regulatory fees set by the National Electric Energy Agency (Aneel). This way, the market expands without jeopardizing the stability of the system.
The Future of Energy Integration in South America
This agreement is a significant advance, but it may just be the beginning. Energy integration between Brazil and Uruguay opens the door to new partnerships in the region. And, let’s be honest, a more interconnected electricity system brings benefits not only for the involved countries but for all of South America.
If this new model of energy exchange proves to be efficient, nothing prevents the two countries from expanding cooperation. This could involve increasing the capacity of transmission lines or even exploring new renewable energy sources, such as wind and solar.
The future of energy integration in South America depends on several factors, such as investments, political stability, and demand for electricity. But one thing is certain: agreements like this show that cooperation between neighboring countries is a promising path to ensure a more secure, efficient, and sustainable energy supply.

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