As Spain's nuclear, combined, and hydroelectric energy dropped to 23% in 2025 from 31% in 2024 the grid became unstable. As solar energy took a larger and larger share it increased instability of supply in the system leading to the collapse of the grid in April 2025. Spain hoped to close all nuclear plants. The risks increased and Spain came to a halt- everything from traffic, trains, industry all shut down across the country.