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Global Grids Lagging: Clean Energy's Bottleneck
25 Sep
Summary
- 80 million km of global power lines need upgrades by 2040.
- 1,700 GW of renewable projects face grid connection queues.
- Grid investment must rise 50% by 2030 to meet demand.

The global power grid infrastructure is emerging as a significant constraint on the clean energy transition. UN Secretary-General António Guterres launched the Global Grids Accelerator to spur investment in transmission and distribution, noting that renewable energy growth is outpacing grid development. This initiative focuses on Africa and Southeast Asia.
As of the previous year, approximately 1,700 gigawatts of renewable projects and 600 gigawatts of battery storage were awaiting grid connections. Furthermore, existing connections are often insufficient, leading to curtailed energy production. Permitting delays, complex technical challenges with decentralized renewables, and soaring component costs contribute to this gridlock.
Investment in grid infrastructure needs substantial acceleration. While annual investment rose to approximately $400 billion in 2025, a further 50 percent increase by 2030 is required to meet projected global electricity demand. This involves adding or replacing an estimated 80 million kilometers of power lines by 2040.
This issue is particularly critical in Europe and the US, where high electricity prices and increased demand from data centers are stressing existing grids. Developing countries, especially in Africa, face even greater urgency, with over 500 million people lacking electricity access.