Global power grid expansion jumps 50% to record 21,000 km in 2025

Utilities added over 21,000 km of new transmission lines last year, a 50% increase from the prior year, according to IRENA data reported at COP31. The expansion supports the energy transition and the goal of raising global electrification to 35% by 2035, but the pace may still lag demand. This marks a notable acceleration in grid infrastructure investment, a key enabler for renewables and electrification.

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