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Smarter grid connection rules could unlock half the projects waiting in queues

The IEA estimates that connection reform and grid-enhancing technologies could clear a large share of advanced-stage projects without new lines.

By Carbon3 team1 min read

Carbon3 data card 'The grid connection queue is huge, but the near-term unlock is too': of more than 2,500 GW stalled in connection queues, the IEA estimates up to 1,600 GW could be freed without new transmission lines.

The grid bottleneck is real, but it is not only a construction problem. IEA estimates that smarter connection rules and grid-enhancing technologies could unlock enough capacity to connect roughly half of the advanced-stage projects now waiting in queues.

The grid bottleneck is usually described as a construction problem with a decade-long timeline. The IEA's finding reframes part of it as a rules-and-software problem with a much shorter one. Projects that are already permitted and financed could connect sooner if the queue were managed differently and if the existing network were operated closer to its real capacity.

For corporate buyers, that changes the timing of supplier decarbonization. Renewable supply at supplier sites may become available earlier than long-run grid plans suggest, and the buyers who have already agreed to fund and claim those reductions will be first in line when it does.

Originally published on LinkedIn, 6 July 2026.

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