Spain and Portugal switched their power back on after the worst blackout in their history, though authorities offered little explanation for what had caused it or how they would prevent it from happening again. 

The clean energy transition is progressing rapidly, but this extraordinary transformation is not without its challenges: outdated power grids and a lack of balancing technology means that we are wasting vast amounts of clean energy and resources through curtailment. To address this, we need an integrated approach combining grid upgrades alongside the greater deployment of balancing...

ADVERTISEMENT Spain and Portugal are still reeling from the largest power cut in recent European history, which struck just after midday yesterday. With power supplies mostly back to normal, attention is now focused on what caused the incident.  Speculation is rife, and some commentators have been quick to blame renewables, which now make up a...