The generation of renewable energy continues to gain prominence in the operation of the National Electrical System (SEN). The capacity of solar, wind, and storage resources enabled to participate in the markets for system services has reached new highs, reinforcing the stability and flexibility of the electric grid.
According to the data released, SEN now has 1,668 MW of capacity enabled to participate in the Frequency Restoration Reserve with Manual Activation (mFRR) market and 340 MW capable of providing Secondary Regulation Energy (aFRR).
System services are essential to guarantee real-time balance between electricity production and consumption. Secondary Regulation Energy automatically corrects deviations in the grid’s frequency, while the Frequency Restoration Reserve with Manual Activation is activated by the operators of the National Dispatch of Electricity to respond to additional system needs or to replenish regulation reserves, contributing to ensuring the security of supply.
The growing participation of solar plants, wind farms, and battery storage systems in these markets increases the range of resources available to support grid operation, enabling more efficient management of the electric system and facilitating the integration of energy produced from renewable sources.
According to the information disclosed, these resources assume an increasingly relevant role in providing essential services for the operation of the SEN, delivering greater security, stability and flexibility. The expansion of the base of enabled assets should also contribute to a more efficient operation of the electric grid.
This new milestone is presented as another step in the modernization of the Portuguese electrical system, keeping pace with the growth of renewable energy production without compromising the levels of safety and reliability of the grid.
