The 2025 power blackout in Spain showed that voltage instability can trigger major grid failures. While experts say Chinese-made solar inverters are unlikely to cause a Europe-wide blackout, they could potentially be exploited to disrupt power supply in specific regions.

Because China supplies 61% of Europe's imported inverters, the EU is increasingly concerned about cybersecurity and dependence on critical energy technology.

New EU rules limiting funding for renewable projects using Chinese inverters are aimed at strengthening energy security and technological sovereignty.