On October 5, 2015, the electrical interconnection through the eastern Pyrenees began operating, which doubled the capacity of commercial exchange between Spain and France to reach 2,800 MW. This capacity is still much lower than that desired by our country and that set by the EU, which establishes that in 2020 it must be 10% of installed capacity (currently it is 3%).
Since its commercial start-up, both countries have increased by 110% the energy exchanged between them, comparing the periods from October 2014 to September 2015 (12 months prior to entry into operation) with the registrations from October 2017 until September 2018, when it reached 19,136 million GWh.
However, the balance is clearly an importer, reaching 12,097 million GWh in the last year: France exported 15,616 million GWh to Spain and 3,519 million GWh from Spain, according to REE data.
It should be remembered that the Spanish electricity system ended the month of July with an import balance of 1,888 GWh in international electric power exchanges, the highest monthly record since 1990.
From this company chaired by Jordi Sevilla, they stress the importance of energy interconnections for that our country and the peninsula cease to be an "island".
Interconnections contribute to security of supply, facilitating support functions between neighboring systems and are the most significant instantaneous backup to security of supply. They provide greater stability and guarantee of frequency in interconnected systems and they provide a better use of renewable energies. This is a very important aspect for our country and the announced growth of this sector to meet the objectives of the energy transition.
In addition, interconnections facilitate commercial energy exchanges, increasing competition by taking advantage of energy price differences in interconnected electrical systems. The interconnections play a fundamental role in the so-called Internal Market of Electricity in Europe (MIE), which seeks to integrate all the existing markets in the European Union into a single market today.