Spain suffered several power glitches and industry officials sounded repeated warnings about the instability of its power grid in the build up to its catastrophic blackout on Monday.
The government has ordered several investigations into the blackout. Industry experts say that whatever the cause, the mass outage and earlier smaller incidents indicate the Spanish power grid faces challenges amid the boom of renewables.
A surplus of energy supply can disrupt power grids in the same way as a deficit, and grid operators must maintain balance.
It doesnt really make sense for Portugal to be connected in any way but through Spain. It would require to build an underwater cable arbitrarily around Spain. if the Iberian peninsula would be better connected to the rest of the EU grid, maybe add an underwater cable to Italy in the mix, it could have made the difference to keep the grid afloat.